WO2022057518A1

WO2022057518A1 - Use of glass composite material with high softening point, low thermal expansion coefficient, high wear resistance and low thermal conductivity in engine gas turbine

Info

Publication number: WO2022057518A1
Application number: PCT/CN2021/111675
Authority: WO
Inventors: 杨德宁
Original assignee: 深圳前海发维新材料科技有限公司
Priority date: 2020-09-15
Filing date: 2021-08-10
Publication date: 2022-03-24
Also published as: CN116194424A; CN113548900A; CN113429212A; CN114195524A; WO2022057653A1; WO2022057654A1; CN117120398A

Abstract

Provided is the use of a glass composite material with a high softening point, a low thermal expansion coefficient, a high wear resistance and a low thermal conductivity in an engine gas turbine. The glass composite material comprises glass powder particles and filling powder particles, wherein the filling powder particles are ceramic powder particles, natural mineral powder particles or metal powder particles, the glass powder particles are sintered to bond and wrap the ceramic powder particles, the natural mineral powder particles or the metal powder particles, and the softening temperature of the glass composite material is＞850℃. The glass composite material provided in the present invention has the eight advantages of a high strength performance in a high-temperature state, a temperature change performance of adapting to rapid cooling and heating, a low thermal expansion performance, a low thermal conductivity of less than 9 w/[(m.K)], an ultrahigh strength performance, a high softening point (deformation point), a high wear resistance and a high hardness performance.

Description

Application of a glass composite material with high softening point, low thermal expansion coefficient, high wear resistance and low thermal conductivity in engine gas turbine

technical field

The invention relates to the field of new materials, in particular to a glass composite material.

Background technique

1. Existing glass materials, ceramic materials, natural mineral materials, metal materials and glass-ceramic materials (glass-ceramic materials) cannot have the following properties at the same time:

①High strength performance at high temperature; ②Performance to adapt to the temperature change of rapid cooling and rapid heating; ③Low thermal expansion performance; ④Low thermal conductivity less than 9w/[(mK)], i.e. thermal insulation performance; ⑥ High softening point (deformation point); ⑦ High wear resistance; ⑧ High hardness;

The disadvantages of glass materials, ceramic materials, natural mineral materials, metal materials and glass-ceramic materials are as follows:

Glass material: ① In the production process of glass, especially in the molding process after melting, homogenization and clarification above 1500 ℃, a small amount of alumina crystals, zirconia crystals or silica crystals are melted due to high temperature, so that the The glass loses the properties of high hardness and high wear resistance of each crystal, which eventually leads to low hardness, poor wear resistance and low softening point (below 850 ℃) of the glass material; ② it is impossible to pass the melting and homogenization above 1500 ℃ , The clarified molding process produces glass-ceramic products with alumina crystals or zirconia crystals or silicon carbide crystals with a content of 20-90%, high hardness and high wear resistance, and it is even more impossible to produce alumina crystals or oxides. The glass-ceramic product content of zirconium crystal or silicon carbide crystal is 20-90%, glass composite material with high hardness and high wear resistance properties.

Ceramic materials: The thermal conductivity of ceramic materials is high, reaching 25-80w/[(m.K)], and the thermal insulation performance is poor.

Metal materials: The thermal expansion rate of metal materials at 350-450°C is above 10 (×10-6/°C), and when it is higher than 350-450°C, the thermal expansion will increase exponentially, so it can only withstand instantaneous high temperatures, let alone Long-term exposure to higher temperatures, higher temperatures will cause large deformation of metal materials.

Natural mineral materials: Natural mineral materials have low wear resistance, many cracks in agglomerated ore, and poor strength. Only when crushed into powder (small particles), there will be no cracks and the inherent strength of natural mineral materials.

Glass-ceramic material: Glass-ceramic is crystallization and heat treatment under a certain temperature system, and a large number of tiny crystals are uniformly precipitated in the glass to form a dense multi-phase complex of crystallite and glass phase. The crystal is pure crystal, and the glass-ceramic material has the following defects: ① The content of alumina in the glass-ceramic phase of the glass-ceramic is very low, so the strength of the glass-ceramic material is very poor, and the glass phase cannot grow with high wear resistance. High alumina-containing crystals, such as total crystals of mullite and magnesia-aluminum spinel; ② microcrystalline grains generated by nucleation and crystal growth, such as wollastonite, hectorite, hectorite, gamolite Stone, calcite feldspar, nepheline, etc. These microcrystalline grains have low hardness and low wear resistance, resulting in low hardness and low wear resistance of glass-ceramic materials; ③ The production process of glass-ceramic cannot be stored in the glass memory. In (formed) a class of inorganic non-metallic materials made of natural or synthetic compounds by shaping and high temperature sintering, including silicon nitride or alumina or ceramic nuclei such as silicon oxide or zirconia, so it is even less likely to be obtained from glass-ceramic In the production process, silicon nitride ceramic crystals or alumina ceramic crystals or silicon oxide ceramic crystals or zirconia ceramic crystals are generated, and the proportion of ceramic crystals such as silicon nitride or alumina or silicon oxide or zirconia cannot be controlled according to the application scenario; ④The glass-ceramic material does not have the hardness and wear resistance of silicon nitride or aluminum oxide or zirconia or silicon carbide; The nature of long-term work under working temperature conditions; ⑥ The current production process of glass-ceramic materials has low production efficiency and high energy consumption, and can only produce flat-shaped products, but cannot produce products with extremely complex shapes, such as: engines of cylinder liners and cylinder blocks.

In summary, there is a need for a product that can simultaneously possess high strength properties at high temperatures, adapt to temperature changes in rapid cooling and rapid heating, low thermal expansion properties, low thermal conductivity 1-5w/[(mK)], and ultra-high strength properties. , High softening point (deformation point), high wear resistance, high hardness materials, and the production process of materials can produce products with extremely complex shapes.

2. Ceramic materials have the advantages of high hardness, high wear resistance, and can work under high temperature conditions for a long time. According to the advantages of ceramic materials, people also think of using ceramic materials to replace metal materials, such as: Europe, Japan, and the United States have studied and For cars that have produced ceramic engine blocks, in 1990, Shanghai's first water-cooled silicon nitride ceramic engine came out, and the gas inlet temperature could reach 1200 °C. The fuel consumption efficiency is 213.56g/km.h, which is far lower than the current 380g/km.h of the 1.5L direct injection engine, which is reduced by 80%. 38%, an increase of 32%, making the thermal energy utilization rate of the ceramic engine reach 70%. However, the fundamental problem of the ceramic engine block is that the functional ceramic material cannot be produced by the casting process of cast iron (after melting) or the die-casting process of aluminum alloy. Functional ceramic materials are unable to produce special-shaped, complex-shaped products, including engine blocks. The molding temperature of functional ceramic materials is about 1700 °C. In the high-temperature molding process, the isostatic pressing process of special-shaped and complex-shaped products cannot make the ceramic powder in each position of the special-shaped and complex-shaped products equal to the pressure. Therefore, the deformation of products with uneven density is also very large. For example, it is not easy to produce dozens of engine blocks by using functional ceramic materials. It is impossible to achieve industrialized large-scale and standardized production of special-shaped and complex-shaped products.

3. In the field of vehicle and marine engine technology at the forefront of world science and technology, especially in the technical field of engine cylinder block and cylinder liner, the engine cylinder block and cylinder liner are both made of metal materials.

The performance defects of high-strength alloy steel metal materials or cast iron materials are: ①The thermal expansion rate at 350-450°C is above 10 (×10-6/°C), and when it is higher than 350-450°C, the thermal expansion will double. Therefore, it can only withstand instantaneous high temperature, and can not withstand high temperature of 800-1100 ℃ for a long time, otherwise the cylinder liner will be greatly deformed and the engine will be damaged; ② The traditional engine cylinder block and cylinder liner must be lower than the limit deformation point of cast iron 350-450 ℃ , a high-speed coolant circulation system must be used to keep the working temperature of the engine cylinder block and cylinder liner below 100-250 °C. Since the thermal conductivity of the metal material is above 40-120w/[(mK)], the heat waste, so the utilization rate of heat energy can only be 30%-40%; ③ high-strength alloy steel metal materials or cast iron materials are not good in hardness and wear resistance, in terms of chemical resistance to corrosion and resistance to changes in cold and heat temperature differences, Also worse than ceramic materials.

4. Existing heat engine piston aircraft engines need to have four stages of intake, pressurization, combustion and exhaust. The cylinder materials of heat engine piston aircraft engines all use metal materials, and today's cutting-edge metal materials The limit deformation point of the cylinder is 350 °C for aluminum alloy and 450 °C for cast iron; therefore, it is necessary to quickly use coolant or air cooling technology to reduce the working temperature of the cylinder and the body to between 100-250 °C, due to the thermal conductivity of metal materials. Above 40-120w/[(mK)]. Although the exhaust has heat energy loss, the heat energy is mainly dissipated through the metal cylinder wall of the engine, resulting in a heat engine type piston aircraft engine heat energy utilization rate of only 35%, the waste is too large, and the fuel cannot be fully burned. Affect the environment.

5. In terms of the principle of generating output energy, the existing heat engine turbine engine is the same as the heat engine piston aircraft engine, which requires four stages of intake, pressurization, combustion and exhaust. The difference is that in the piston aircraft engine of the heat engine type, the four stages are carried out sequentially in time-sharing, but in the turbine engine of the heat engine type, it is carried out continuously, and the gas flows through each part of the turbine engine in turn, corresponding to four working positions of the piston engine. There are two heat losses in the engine: 1) There will be a lot of heat energy loss on the exhaust gas; 2) The heat energy will be dissipated through the combustion chamber wall and the turbine wall of the engine, and a huge amount of heat energy will also be dissipated; resulting in only about 50% of the heat energy utilization rate of the engine . If it is possible to prevent or reduce the conduction and dissipation of heat energy through the combustion chamber wall and the turbine wall of the engine, the heat energy utilization rate of the engine can be greatly improved.

6. In today's thermal power, nuclear power, and giant ship power process systems using steam turbine technology, the thermal energy utilization rate is about 30%. The largest heat loss is the heat loss of steam. If the heat loss of steam is small, the thermal energy utilization rate will be reduced. Greatly improved, steam heat loss mainly exists in two aspects:

①Because the thermal conductivity of the steam turbine's metal cylinder shell, metal steam chamber wall, and metal steam conveying pipe reaches 60-120w/[(mK)], it is the most important interface for the heat generation of steam at 400-500℃, which is the main interface of the steam turbine. One of the main factors of thermal energy loss.

②The steel plate of the steam turbine and the outer arc-shaped metal blades at all levels have a thermal conductivity of 60-120w/[(mK)], which is the most important interface for the heat generation and heat dissipation of the steam at 400-500℃; this is also the heat loss of the steam turbine. one of the main factors.

If the steam heat loss can be prevented or reduced, the thermal energy utilization rate of the steam turbine can be greatly improved.

7. Traditional wood plate materials, ceramic plate materials, glass plate materials, stone plate materials, etc., especially large-area plates, have the disadvantages of low production efficiency, high cost, poor strength, poor wear resistance, and poor flatness.

8. Traditional insulation materials include aerogel insulation materials, ceramic foam insulation materials and glass foam insulation materials; most of the current aerogel insulation materials are composite materials combining aerogel and reinforcing fibers. The defects of the material are: very poor strength, very brittle, and easily broken; the defects of ceramic foam insulation materials are: very poor strength, very brittle, and easily broken; the defects of glass foam insulation materials are: very poor strength, very brittle, Breaks easily.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention proposes a glass composite material.

The present invention is achieved through the following technical solutions:

The present invention provides a glass composite material, the glass composite material includes glass powder particles and filler particles; the filler particles are ceramic powder particles, natural mineral powder particles or metal powder particles, and the glass powder particles are made by sintering. Bonding and wrapping the ceramic powder particles or the natural mineral powder particles or the metal powder particles, the softening temperature of the glass composite material is greater than 850°C, the diameter of the filled powder particles is less than 1 mm, and the natural mineral powder The melting temperature of the powder particles and the metal powder particles is greater than 950°C, and the ceramic powder particles are powder particles of a class of inorganic non-metallic materials made of natural or synthetic compounds through molding and high-temperature sintering; the glass powder particles are based on the weight percentage In the glass powder, the content of alumina is 12-48%, the content of magnesium oxide is 0-15%, the content of silicon oxide is 30-82%, and the content of calcium oxide is 0-15%, The content of boron oxide is 0-15%.

Further, the softening temperature of the glass composite material is >1100°C.

Further, according to the weight percentage of the glass powder, the content of alumina in the glass powder is 35-44%, the content of magnesium oxide is 5-15%, and the content of silicon oxide is 26-40%, The content of calcium oxide is 6-15%, and the content of boron oxide is 3-6%.

Further, in the glass composite material, in the glass composite material, the content of the filler powder is 20-92%, and the content of the glass powder is 8-80% in terms of weight percentage.

Further, the diameter of the filled powder particles is less than 0.01 mm.

Further, the ceramic powder is alumina ceramic powder or zirconia ceramic powder or silicon nitride ceramic powder or silicon carbide ceramic powder or magnesium aluminum spinel ceramic powder.

Further, the natural mineral powder is bauxite powder or quartzite powder or granite powder or silica sand powder or andalusite powder or kyanite powder or sillimanite powder.

Further, the metal powder particles are copper alloy powder particles or gray cast iron powder particles or alloy steel powder particles or tungsten alloy powder particles or chromium alloy powder particles.

A production method of the glass composite material, comprising the following steps:

S1: uniformly mix the glass powder with the ceramic powder or the natural mineral powder or the metal powder to form a mixed powder;

S2: adding organic binding material to the mixed powder to form a mixture;

S3: Put the mixture into the forming mold, and vacuumize the mixture in the forming mold;

S4: In a vacuum state, the mixture in the forming mold is formed into a green body through an isostatic pressing process or a casting method;

S5: the green body is sintered and formed, and the organic bonding material is volatilized at a high temperature to finally form the glass composite material.

A1: Mix the glass powder with the ceramic powder or the natural mineral powder or the metal powder evenly to form a mixed powder;

A2: heating the mixed powder particles to soften the glass powder particles to form a molten mixture;

A3: The molten mixture is shaped by a calendering process, a hot pressing process or a pouring casting process, and finally the glass composite material is formed.

A method for spraying the glass composite material on the surface of a workpiece, comprising the following steps:

B1: uniformly mix the glass powder with the ceramic powder or the natural mineral powder or the metal powder to form a mixed powder;

B2: heating the mixed powder particles to soften the glass powder particles to form a molten mixture;

B3: Through the high-temperature spraying process, the molten mixture is passed through a high-speed steam flow, and the molten mixture is atomized and sprayed on the surface of the workpiece, and finally the glass composite material is formed on the surface of the workpiece.

A cylinder liner of a vehicle engine includes the glass composite material.

Further, the cylinder liner of the vehicle engine is made of the glass composite material.

A cylinder liner of a marine engine comprising the glass composite material.

Further, the cylinder liner of the marine engine is made of the glass composite material.

A heat engine type piston aircraft engine includes an engine cylinder liner, and the engine cylinder liner includes the glass composite material.

Further, the engine cylinder liner is made of the glass composite material.

A heat engine type turbine engine includes the glass composite material.

Further, the surfaces of the combustion chamber of the heat engine type turbine engine and the outer casing of the turbine are covered with a layer of the glass composite material.

A steam turbine including the glass composite material.

Further, the steam chamber wall of the steam turbine and/or the surface layer of the cylinder layer and/or the surface layer of the steam nozzle and/or the surface layer of the steel plate and/or the surface layer of the blade and/or the surface layer of the cylinder body and/or the surface layer of the steam conveying pipe are covered with a layer the glass composite.

A generator including the glass composite.

Further, the surface of the cylinder liner of the piston engine of the generator and/or the casing of the turbocharging system component is covered with a layer of the glass composite material.

A heat engine type glass engine cylinder block includes a cylinder liner including the glass composite material.

Further, the cylinder liner is made of the glass composite material.

A heat engine type engine block, the heat engine type engine block comprising the glass composite material.

Further, the engine block of the heat engine is made of the glass composite material.

A heat engine type engine includes the glass composite material.

Further, the surface of the casing of the turbocharger system component of the heat engine type engine is covered with a layer of the glass composite material.

Further, the cylinder head and/or the piston and/or the piston pin and/or the connecting rod and/or the intake valve and/or the exhaust valve of the thermal engine type are made of the glass composite material.

Further, the cylinder liner of the thermal engine includes an inner layer and an outer layer, the outer layer is made of the glass composite material, and the outer layer is sleeved on the periphery of the inner layer and is connected with the inner layer. To form a fixed connection, the inner layer is made of ceramic material.

A foamed glass material comprising the glass composite material.

A fiber-containing composite includes the glass composite.

A tubular material comprising the glass composite.

A flat plate material comprising the glass composite material.

Beneficial effects of the present invention:

The glass composite material proposed by the present invention also has high strength performance under high temperature, the performance of adapting to the temperature change of rapid cooling and rapid heating, low thermal expansion performance, low thermal conductivity 1-5w/[(mK)], ultra-high strength performance, 8 advantages of materials with high softening point (deformation point), high wear resistance and high hardness.

detailed description

In order to describe the technical solution of the present invention more clearly and completely, the present invention is further described below.

In this embodiment, the diameter of the ceramic powder or the natural mineral powder or the metal powder is less than 1 mm so that the ceramic powder or the natural mineral powder or the metal powder can hold the material The inherent mechanical properties of the glass composite material; because the structure of the glass composite material is that the glass powder particles bond and wrap the ceramic powder particles or the natural mineral powder particles or the metal powder particles, so that the glass composite material The softening point temperature of the glass powder is greater than or equal to the softening point temperature of the glass powder; glass materials with different softening points can be selected according to actual use requirements to make the glass powder, so that the glass composite material can meet different use requirements; The glass powder particles are softened by heating, so that the glass powder particles bind and wrap the ceramic powder particles or the natural mineral powder particles or the metal powder particles to form the glass composite material.

In this embodiment, the glass composite material is made by bonding and wrapping the ceramic powder particles with the glass powder particles, and the glass composite material simultaneously has glass materials, ceramic materials, natural mineral materials, metal materials and microscopic materials. The advantages of crystal glass material are that it has high strength performance at high temperature, the performance of adapting to the temperature change of rapid cooling and heating, low thermal expansion performance, low thermal conductivity 1-5w/[(mK)], ultra-high strength performance, 8 advantages of materials with high softening point (deformation point), high wear resistance and high hardness properties, the glass composite material is especially suitable for various engines (cylinder liners, cylinder blocks and other components of the engine) in the field of heat engines, It is used in the field of foam insulation materials, thermal spray insulation materials, round pipe insulation materials, and plate insulation materials.

In this embodiment, in the glass powder, the content of alumina in the glass powder is 12-48%, the content of magnesium oxide is 0-15%, and the content of silicon oxide is 30-15% by weight percentage. 82%, the content of calcium oxide is 0-15%, and the content of boron oxide is 0-15%.

The softening point of the glass powder is greater than 850°C, preferably the glass powder has a softening point between 900-1350°C.

In this embodiment, in the glass powder, the content of alumina in the glass powder is 17%, the content of magnesium oxide is 6.3%, the content of silicon oxide is 66%, and the content of calcium oxide is 66%. The content of boron oxide is 8.6%, and the content of boron oxide is 2.1%; under this composition, the softening point of the glass powder is 860 ° C, the strength of the glass powder is 170Mpa, and the thermal conductivity of the glass powder is 170Mpa. is less than 9w/[(mK)], the thermal expansion coefficient of the glass powder from 0-40℃(normal temperature) to 860℃ is 4(×10-6/℃)-9.5(×10-6/℃) In between, that is, the deformation of the glass frit from 0-40°C to 910°C is between 4ppm and 9.5ppm.

In this embodiment, the structure of the glass composite material is that the glass powder particles bond and wrap the ceramic powder particles, the natural mineral powder particles, or the metal powder particles. The advantages of the two materials, the glass composite also produces new properties, such as: the thermal conductivity of the ceramic powder or the natural mineral powder or the metal powder reaches 20-200w/[(mK) ], the content of the ceramic powder or the natural mineral powder or the metal powder in the glass composite material is 80%, but the thermal conductivity of the glass composite material is not: 20-200w/ [(mK)]x80%=16-160w/[(mK)], while the thermal conductivity of the glass composite is only less than 9/[(mK)], resulting in completely new properties; this is due to the The glass composite material forms a structure in which the glass powder particles bond and wrap the ceramic powder particles or the natural mineral powder particles or the metal powder particles. Enter the ceramic powder or the natural mineral powder or the metal powder, and finally enter the glass material layer formed by the glass powder, so even if the ceramic powder or the natural mineral powder or The thermal conductivity of the metal powder particles reaches 20-200w/[(mK)], and a glass material layer with a thermal conductivity of less than 9/[w/[(mK)] is also formed by the glass powder particles Block the heat.

In this embodiment, the structure of the glass composite material is that the glass powder particles bond and wrap the ceramic powder particles, the natural mineral powder particles, or the metal powder particles. The advantages of the two materials, the glass composite material also produces new properties, the thermal expansion rate of the glass composite material rises from 0-40 ° C to 900-1350 ° C in 4(×10-6/°C)-9.5(× 10-6/℃), that is, the deformation of the glass composite material from 0-40℃ to 900-1350℃ is between 4ppm and 9.5ppm, compared with the aluminum alloy of the traditional engine. Or the thermal expansion rate of cast iron metal material is between 15-24 (×10-6/°C) at 350-450°C, but in the very low temperature range of 350-450°C, it will produce high deformation, compared to traditional The aluminum alloy or cast iron metal material of the engine, the glass composite material has better material properties of resistance to rapid cooling and rapid heat changes.

In this embodiment, when the glass composite material is subjected to a strong external force to generate cracks, because of the structure of the glass powder particles surrounding the ceramic powder particles or the natural mineral powder particles or the metal powder particles, Cracks are constantly blocked and stagnant among thousands of the ceramic powders or the natural mineral powders or the metal powders. In order to expand the cracks, it must be able to tear, soften, bond and wrap. The strength of the glass material layer formed by the ceramic powder or the natural mineral powder or the glass powder of the metal powder is increased, so the glass powder wraps the ceramic powder or the natural mineral. The structure of the powder particles or the metal powder particles will be many times higher than the breaking strength of the glass material alone, and the glass material alone cracks unhindered because the cracks are in the glass, so the glass material alone is stronger than the glass composite material. The breaking strength of the material will be several times lower; even if the glass composite is made with ceramic powders with poor breaking strength or natural mineral powders or metal powders, cracks will occur in thousands of ceramics. The powder particles or natural mineral powder particles are constantly blocked and stagnant. The glass composite material has a much higher advantage in breaking strength performance, so the glass composite material is especially suitable for use in: ① heat engine type of various engines In the application field of cylinder block and/or cylinder liner; ② In the application field of engine accessories; ③ In the application field of foam insulation materials; ④ In the application field of thermal spray insulation materials; ⑤ In the application field of round pipe insulation materials In the field of application; ⑥ In the field of application of flat-panel insulation materials.

In this embodiment, the glass powder particles are based on weight percentage, and the content of alumina in the glass powder particles is 54%, the content of magnesium oxide is 5%, the content of silicon oxide is 30%, and the content of calcium oxide is 7%. %; boron oxide 4%; under this component, the softening point of the glass powder is 1350°C, the strength of the glass powder is 380Mpa, and the thermal conductivity of the glass powder is less than 9/[w/ [(mK)], the thermal expansion coefficient of the glass powder from 0-40°C (normal temperature) to 1350°C is between 3.8(×10-6/°C)-9.5(×10-6/°C), also That is, the deformation of the glass powder from 0-40°C to 1350°C is between 3.8 ppm and 9.5 ppm.

In this embodiment, the ejector rod method of the German NETZSCH instrument is used to test the softening temperature of the glass composite material, and the test conditions are: a heating rate of 5°C/min.

Example 1

According to the weight percentage of the glass composite material, the metal powder particles in the glass composite material are 70%, and the glass powder particles are 30%; the metal powder particles are alloy steel powder particles, and alloy steel powder particles The diameter of the glass powder is less than 0.01mm; the glass powder has an alumina content of 17%, a magnesium oxide content of 6.3%, a silicon oxide content of 66%, and a calcium oxide content of 8.6% by weight in the glass powder. %; boron oxide 2.1%.

In this embodiment, the melting temperature of the alloy steel powder is 1400°C; the softening point of the glass composite material is 860°C, the strength of the glass powder is 170Mpa, and the thermal conductivity of the glass powder is less than 9/[w/[(mK)].

In this embodiment, the thermal expansion coefficient of the glass composite material from 0-40°C (normal temperature) to 910°C is between 4(×10-6/°C)-9.5(×10-6/°C), and also That is, the deformation of the glass composite from 0-40°C to 910°C is between 4ppm and 9.5ppm.

In this embodiment, the smaller the diameter of the filler particles, the better the density of the glass composite material, and the diameter of the alloy steel particles is less than 0.01 mm.

In this embodiment, when the glass composite material is subjected to a strong external force to produce cracks, the cracks are continuously blocked and stagnant among thousands of alloy steel powder particles; the glass powder particles wrap the alloy steel powder particles The structure of the glass composite material will be more than 2.5 times higher than the breaking strength of the single glass material, and the strength of the glass composite material will increase from 170Mpa to 425Mpa; the softening point of the glass composite material is 860 ℃, so the glass composite material is in It has high strength properties at high temperature; the thermal energy is mainly blocked by the glass material formed by the glass powder with thermal conductivity less than 9/[w/[(mK)], so the thermal conductivity of the glass composite structure is is less than 9w/[(mK)].

In this embodiment, since the melting temperature of the alloy steel powder is 1400°C and the softening point of the glass composite material is 860°C, the glass composite material can be used as a thermal conductor in various application scenarios of 860°C for a long time. The glass composite material is more resistant than the metal cylinder liner of the engine because the hardness of the bauxite powder is more than 3 times higher than that of the metal cylinder liner of the engine. Grinding and higher hardness.

Example 2

According to the weight percentage of the glass composite material, the natural mineral powder in the glass composite material is 75%, and the glass powder is 25%; the natural mineral powder is quartz stone powder, quartz stone powder The diameter of the glass powder is less than 0.01mm; the glass powder has an alumina content of 28%, a magnesium oxide content of 6.3%, a silicon oxide content of 55%, and a calcium oxide content of 8.6% by weight. %; boron oxide 2.1%.

In this embodiment, the melting temperature of the quartz stone powder is 1400°C; the softening point of the glass composite material is 910°C, the strength of the glass powder is 195Mpa, and the thermal conductivity of the glass powder is less than 8 /[w/[(mK)].

In this embodiment, the thermal expansion coefficient of the glass composite material from 0-40°C (normal temperature) to 910°C is between 4(×10-6/°C)-9.5(×10-6/°C), and also That is, the deformation of the glass composite material from 0-40 ℃ to 1120 ℃ is between 4ppm and 9.5ppm, compared with the thermal expansion rate of aluminum alloy or cast iron metal material of traditional engine at 350-450℃. Between 15-24 (×10-6/℃), only in the very low temperature range of 350-450℃, it will produce high deformation. Compared with the aluminum alloy or cast iron metal materials of traditional engines, the glass The composite material has better material properties of resistance to rapid cooling and rapid thermal changes.

In this embodiment, the smaller the diameter of the filling powder particles, the better the density of the glass composite material, so the diameter of the quartz stone powder particles is less than 0.01 mm.

In this embodiment, when the glass composite material is subjected to a strong external force to generate cracks, the cracks are continuously blocked and stagnant among thousands of quartz stone powder particles; the glass powder particles wrap the structure of the quartz stone powder particles. , the breaking strength of the glass composite material will be more than 2.5 times higher than that of the single glass material, and the strength of the glass composite material will increase from 195Mpa to 487Mpa; the softening point of the glass composite material is 910 ℃, so the glass composite material is in a high temperature state. It has high-strength performance under high temperature; the thermal energy is mainly blocked by the glass material formed by the glass powder with a thermal conductivity of less than 8/[w/[(mK)], so the thermal conductivity of the glass composite structure is less than 8/[w/[(mK)] 8w/[(mK)].

In this embodiment, since the melting temperature of the quartz stone powder is 1400°C and the softening point of the glass composite material is 910°C, the glass composite material can be used as thermal conductivity in various application scenarios of 910°C for a long time. It is used for high temperature heat insulation materials less than 8/[w/[(mK)]; and because the hardness of quartz stone powder is more than 2 times higher than that of various engine metal cylinder liners, the glass composite material is more durable than engine metal cylinder liners. Wear-resistant and higher hardness.

Example 3

The glass composite material is based on the weight percentage, in the glass composite material, the ceramic powder is 80%, and the glass powder is 20%; the ceramic powder is alumina ceramic powder, alumina ceramic powder The diameter of the powder particles is less than 0.01mm; the glass powder particles are based on the weight percentage, and the content of alumina in the glass powder particles is 44%, the content of magnesium oxide is 7%; the content of silicon oxide is 34%; calcium oxide Content 8%; boron oxide 7%.

In this embodiment, the melting temperature of the alumina ceramic powder is 1700°C; the softening point of the glass composite material is 1310°C, the strength of the glass powder is 330Mpa, and the thermal conductivity of the glass powder is Less than 7w/[(mK)].

In this embodiment, the thermal expansion coefficient of the glass composite material from 0-40°C (normal temperature) to 1310°C is between 5(×10-6/°C)-9.5(×10-6/°C), and also That is, the deformation of the glass composite material from 0-40 ℃ to 1310 ℃ is between 5ppm and 9.5ppm, compared with the thermal expansion rate of aluminum alloy or cast iron metal material of traditional engine at 350-450℃. Between 15-24 (×10-6/℃), only in the very low temperature range of 350-450℃, it will produce high deformation. Compared with the aluminum alloy or cast iron metal materials of traditional engines, the glass The composite material has better material properties of resistance to rapid cooling and rapid thermal changes.

In this embodiment, the smaller the diameter of the filler particles, the better the density of the glass composite material, so the diameter of the alumina ceramic particles is less than 0.01 mm.

In this embodiment, when the glass composite material is subjected to a strong external force to produce cracks, the cracks are continuously blocked and stagnant among thousands of alumina ceramic powder particles; the glass powder particles wrap the alumina ceramic particles The structure of the powder particles will be more than 2.5 times higher than the breaking strength of the single glass material, and the strength of the glass composite material will increase from 330Mpa to 820Mpa; the softening point of the glass composite material is 1310 ℃, so the glass composite material The material has high strength properties at high temperature; the heat energy is mainly blocked by the glass material formed by the glass powder with a thermal conductivity of less than 7w/[(mK)], so the thermal conductivity of the glass composite structure is Less than 7w/[(mK)].

In this embodiment, since the melting temperature of the alumina ceramic powder is 1700°C and the softening point of the glass composite material is 1310°C, the glass composite material can be used as a heat sink in various application scenarios of 1310°C for a long time. It can be used as a high-temperature heat-resistant thermal insulation material with a conductivity of less than 7w/[(mK)]; and because the alumina ceramic powder is more than 3 times harder than various engine metal cylinder liner More wear-resistant, higher hardness.

Further, the softening temperature of the glass composite material is >1100°C.

In this embodiment, the glass powder particles are based on weight percentages, and the content of alumina in the glass powder particles is 35%, the content of magnesium oxide is 10%, the content of silicon oxide is 40%, and the content of calcium oxide is 40%. The content of boron oxide is 11%, and the content of boron oxide is 4%; under this composition, the softening point of the glass powder is 1120 ° C, the strength of the glass powder is 235Mpa, and the thermal conductivity of the glass powder is less than 7w/[(mK)], the thermal expansion coefficient of the glass powder from 0-40℃(normal temperature) to 1120℃ is 4(×10-6/℃)-9.5(×10-6/℃) In between, that is, the deformation of the glass frit from 0-40°C to 1120°C is between 4ppm and 9.5ppm.

In this embodiment, in the glass powder, the content of alumina is 44%, the content of magnesium oxide is 7%, the content of silicon oxide is 34%, and the content of calcium oxide is 34% in the glass powder according to the weight percentage. The content of boron oxide is 8%, and the content of boron oxide is 7%; under this composition, the softening point of the glass powder is 1310 ° C, the strength of the glass powder is 330Mpa, and the thermal conductivity of the glass powder is less than 7w/[(mK)], the thermal expansion rate of the glass powder from 0-40℃ (normal temperature) to 1310℃ is 5(×10-6/℃)-9.5(×10-6/℃) In between, that is, the deformation of the glass frit from 0-40°C to 1310°C is between 5ppm and 9.5ppm.

In this embodiment, in terms of the weight percentage of the glass composite material, the content of the glass powder particles is 20%, and the content of the ceramic powder particles is 80%, and the glass composite material can be produced by an isostatic pressing process.

Further, the diameter of the filled powder particles is less than 0.01 mm.

In this embodiment, the smaller the diameter of the filling powder particles, the better the density of the glass composite material, and the diameter of the filling powder particles is less than 0.01 mm.

In this embodiment, the ceramic powder is preferably alumina ceramic powder or zirconia ceramic powder or silicon nitride ceramic powder or silicon carbide ceramic powder or magnesium aluminum spinel ceramic powder, alumina ceramic powder The melting point of powder, zirconia ceramic powder, silicon nitride ceramic powder, silicon carbide ceramic powder, magnesium aluminum spinel ceramic powder is about 1500-1700 °C, and it also has high wear resistance, low specific gravity and high temperature. The advantage of high strength.

In this embodiment, the natural mineral powders are preferably bauxite powders or quartzite powders or granite powders or silica sand powders or andalusite powders or kyanite powders or sillimanite powders, bauxite powders , Quartz stone powder, granite powder, silica sand powder, andalusite powder, kyanite powder, sillimanite powder melting point above 1100 ℃, can meet various needs.

In this embodiment, the metal powder is preferably copper alloy powder or gray cast iron powder or alloy steel powder or tungsten alloy powder or chromium alloy powder, copper alloy powder, gray cast iron powder, alloy steel powder The melting point of powder, tungsten alloy powder and chromium alloy powder is above 1100℃, which can meet various application requirements.

S2: adding organic binding material to the mixed powder to form a mixture;

In this embodiment, an isostatic pressing process is adopted in step S4, and the glass composite material can be produced into a plate-shaped and tubular product.

A3: The molten mixture is shaped by a calendering process or a hot pressing process or a pouring casting process, and finally the glass composite material is formed.

In this embodiment, the casting process is adopted in step A3, and the glass composite material can be produced into special-shaped and complex-shaped products, such as an engine block and an engine cylinder liner.

In this embodiment, by the above method, the glass composite material can be attached to the surface of a product with a special shape and a complex shape.

A cylinder liner of a vehicle engine includes the glass composite material.

In this embodiment, the cylinder liner of the vehicle engine is made of the glass composite material; the ceramic powder is preferably alumina ceramic powder or zirconia ceramic powder or silicon nitride ceramic powder or silicon carbide ceramic Powder; the natural mineral powder is preferably quartzite ore, quartzite ore has a melting point above 1400 ℃, and quartzite ore also has the advantages of high wear resistance, low specific gravity, high strength and low cost; the preferred softening point is The glass composite material between 1100-1350 ℃ is used to make the cylinder liner of the vehicle engine. Compared with the cylinder liner made of traditional metal material, the cylinder liner of the vehicle engine has the following advantages: ① The thermal expansion rate is much lower For metal materials; ② Can withstand high temperature of 1100-1350 ℃ for a long time, long-term work at 1100-1350 ℃ high temperature without deformation; ③ Thermal conductivity is less than 9w/[(mK)] much lower than metal materials; ④ Hardness and wear resistance , Corrosion resistance chemical properties, resistance to cold and heat temperature difference performance are better than metal materials.

In this embodiment, the cylinder liner of the vehicle engine can withstand a high temperature of 1100-1350°C for a long time, especially because it has 2-3 times higher strength and 15-20 times higher thermal insulation efficiency than existing aluminum alloy or cast iron vehicle engines , the deformation is small at high temperature, so it can be used not only on traditional fuel vehicles, but also on fuel engines of gasoline-electric hybrid vehicles and extended-range electric vehicles. The utilization rate of heat energy can be increased from 30-37% of the traditional technology to 75-85%, and the utilization rate of heat energy can be improved, and the fuel will be more fully burned, which will greatly reduce the harmful gas emitted by the car.

A cylinder liner of a marine engine comprising the glass composite material.

In this embodiment, the cylinder liner of the marine engine is made of the glass composite material; the ceramic powder is preferably alumina ceramic powder or zirconia ceramic powder or silicon nitride ceramic powder or silicon carbide ceramic Powder; the natural mineral powder is preferably quartzite ore, quartzite ore has a melting point above 1400 ℃, and quartzite ore also has the advantages of high wear resistance, low specific gravity, high strength and low cost; the preferred softening point is The glass composite material between 1100-1350 ℃ is used to make the cylinder liner of the marine engine, and the cylinder liner of the marine engine has the following advantages compared with the cylinder liner made of traditional metal materials: ① The thermal expansion rate is much lower For metal materials; ② Can withstand high temperature of 1100-1350 ℃ for a long time, long-term work at 1100-1350 ℃ high temperature without deformation; ③ Thermal conductivity is less than 9w/[(mK)] much lower than metal materials; ④ Hardness and wear resistance , Corrosion resistance chemical properties, resistance to cold and heat temperature difference performance are better than metal materials.

In this embodiment, the cylinder liner of the marine engine can withstand a high temperature of 1100-1350°C for a long time, especially because it has 2-3 times higher strength and 15-20 times higher thermal insulation efficiency than the existing aluminum alloy or cast iron marine engine , the property of small deformation at high temperature, the thermal energy utilization rate of the engine using the cylinder liner of the marine engine can be increased from 30-37% of the traditional technology to 75-85%, and the thermal energy utilization rate is improved. The emission of harmful gases from ships is greatly reduced.

Further, the engine cylinder liner is made of the glass composite material.

In this embodiment, the engine cylinder liner is made of the glass composite material; the ceramic powder is preferably alumina ceramic powder or zirconia ceramic powder or silicon nitride ceramic powder or silicon carbide ceramic powder ; The natural mineral powder particles are preferably quartzite ore, which has a melting point above 1400 ℃, and the quartzite ore also has the advantages of high wear resistance, low specific gravity, high strength and low cost; the preferred softening point is 1100- Compared with the cylinder liner and cylinder block made of traditional metal materials, the engine cylinder liner is made of the glass composite material at a temperature between 1350 ℃ and has the following advantages: ① The thermal expansion rate is much lower than that of the metal material ; ② Can withstand high temperature of 1100-1350 ℃ for a long time, and will not be deformed under high temperature of 1100-1350 ℃ for a long time; ③ The thermal conductivity is less than 9w/[(mK)], which is much lower than that of metal materials; ④ Hardness, wear resistance, corrosion resistance Chemical properties and resistance to changes in temperature difference between cold and heat are better than those of metal materials.

In this embodiment, the engine cylinder liner can withstand a high temperature of 1100-1350°C for a long time, especially because it has 2-3 times higher strength and 15-20 times higher thermal insulation efficiency than existing aluminum alloy or cast iron engines. Due to the small deformation, the thermal energy utilization rate of the piston aircraft engine can be increased from 30-37% of the traditional technology to 75-85%.

A heat engine type turbine engine includes the glass composite material.

In this embodiment, the thermal conductivity of the glass composite material is less than 9w/[(mK)], which can greatly reduce the heat conduction loss from the combustion chamber and the casing of the turbine, so that the heat engine type turbojet engine or turboprop engine can be greatly reduced. Or the thermal energy utilization rate of the turboshaft engine can be increased from 50% of the traditional technology to 75-85%.

A steam turbine including the glass composite material.

In this embodiment, the thermal conductivity of the glass composite material is less than 9w/[(mK)], which can greatly reduce the heat from the steam chamber wall and/or the cylinder layer surface layer and/or the steam nozzle surface layer and/or the steam turbine. Or the surface layer of the steel disk and/or the blade surface and/or the cylinder surface and/or the steam conveying pipe surface is conducted and lost, so that the thermal energy utilization rate of the steam turbine can be increased from 30-40% of the traditional technology to 75-85%.

A generator including the glass composite.

In this embodiment, the thermal conductivity of the glass composite material is less than 9w/[(mK)], and the surfaces of the cylinder liner of the piston engine of the generator and the casing of the turbocharging system component are covered with a layer of the The glass composite material can greatly reduce the heat conduction loss from the cylinder liner and the turbocharging system components, so that the thermal energy utilization rate of the generator can be increased from 30-37% of the traditional technology to 75-85%.

Further, the cylinder liner is made of the glass composite material.

In this embodiment, the cylinder liner is made of the glass composite material, so that the fracture strength of the cylinder liner is much higher than that of the existing ceramic engine cylinder liner, and the cylinder liner also has the glass composite material. All the advantages of the material; the existing ceramic engine cylinder liner cannot be produced by the casting process of cast iron (after melting) or the die-casting process of aluminum alloy, the cylinder liner can be produced by the pouring casting process, the production yield is high, and the Industrialized large-scale, standardized production.

In this embodiment, the engine block of the heat engine is made of the glass composite material, and the engine block of the heat engine can be produced by a pouring and casting process, with a high production yield, and can be industrialized, large-scale, standardized Production; the engine block of the heat engine type has high temperature resistance performance, high strength performance, performance of adapting to the temperature change of rapid cooling and rapid heating, low thermal expansion performance, low thermal conductivity less than 9/[(mK)], ultra-high strength performance, It is superior to existing metal engine blocks in terms of high softening point, high wear resistance and high hardness.

A heat engine type engine includes the glass composite material.

In this embodiment, the surface of the casing of the turbocharger system component of the heat engine type engine is covered with a layer of the glass composite material, which can greatly reduce the conduction loss of heat from the casing of the turbocharger system component.

In this embodiment, the cylinder head, piston, piston pin, connecting rod, intake valve and exhaust valve of the heat engine type engine are made of the glass composite material, thereby improving the insulation of the heat engine type engine. thermal performance.

In this embodiment, the outer layer is sleeved on the periphery of the inner layer and forms a fixed connection with the inner layer, and the cylinder liner is a double-layer composite structure; the inner layer is in contact with the piston, and the inner layer is in contact with the piston. Made of silicon nitride structural ceramics, the wear resistance of silicon nitride structural ceramics is particularly good, but the thermal conductivity is very high, 25-30w/[(mK)], and there is a disadvantage of poor thermal insulation. Made of the glass composite material, the thermal conductivity of the glass composite material is less than 9w/[(mK)], the outer layer is sleeved on the periphery of the inner layer and forms a fixed connection with the inner layer, which can overcome the The disadvantage of poor thermal insulation of silicon nitride structural ceramics makes more thermal energy converted into kinetic energy, and can also highlight the advantages of high wear resistance and high strength of silicon nitride structural ceramics; the cylinder liner is especially suitable for use in cylinders with relatively small diameters. It is used in large vehicles and large ship engines with large displacement.

In this embodiment, the outer layer and the engine block material can be selected to be sintered together, or the cylinder liner of the thermal engine type can be selected to be a separate cylinder liner, which can be disassembled and replaced during maintenance.

A foamed glass material comprising the glass composite material.

In this embodiment, the foamed glass material is made by adding a foaming agent, a modification additive, and a foaming accelerator on the basis of the components of the glass composite material, that is, the foamed glass material includes a foaming agent , modified additives, foaming accelerators, the glass powder particles and the ceramic powder particles or the natural mineral powder particles or the metal powder particles; the foaming agent, modification additives, foaming accelerators, all After the glass powder and the ceramic powder or the natural mineral powder or the metal powder are mixed uniformly, the foamed glass material is finally formed after re-sintering, and the foamed glass material is filled with numerous openings or The small closed pores and the thermal conductivity of the glass composite material are only 1-5w/[(mK)], so that the thermal conductivity of the foamed glass material is only 0.05-0.1w/[(mK)] ; Since the glass composite material has high strength and breaking strength, the foamed glass material also has high strength and breaking strength.

A fiber-containing composite includes the glass composite.

In this embodiment, the fiber-containing composite material is composed of the glass composite material and fibers, and the fibers include carbon fibers or high-strength glass fibers, that is, the fiber-containing composite material includes fibers, the glass powder and the The ceramic powder or the natural mineral powder or the metal powder; the addition of fibers gives the fiber-containing composite material a higher strength than the glass composite material.

A tubular material comprising the glass composite.

In this embodiment, the tubular material is made of the glass composite material; the tubular material has better thermal insulation properties and strength than other tubular materials.

A flat plate material comprising the glass composite material.

In this embodiment, the flat plate material is made of the glass composite material; the flat plate material also has high strength properties under high temperature conditions, the properties of adapting to temperature changes of rapid cooling and rapid heating, low thermal expansion properties, and low thermal conductivity. 8 advantages of materials with a rate of less than 7w/[(mK)], ultra-high strength performance, high softening point (deformation point), high wear resistance, and high hardness; the flat material is produced by a sintering process and has high production efficiency. , the advantages of low cost and high flatness; the flat material can be used as a thermal insulation sheet, compared with the limit thermal insulation temperature of 280 ℃ of the traditional organic material thermal insulation sheet, the flat material can reach 1000-1300 ℃ the ultimate thermal insulation temperature.

Of course, the present invention may also have other various embodiments. Based on the present embodiment, those of ordinary skill in the art can obtain other embodiments without any creative work, which all belong to the protection scope of the present invention.

Claims

An application of a glass composite material with high softening point, low thermal expansion coefficient, high wear resistance and low thermal conductivity in an engine gas turbine, characterized in that the glass composite material comprises glass powder particles and filler powder particles; The powder particles are ceramic powder particles, natural mineral powder particles or metal powder particles. The softening temperature of the composite material is >850°C, the diameter of the filling powder is <1mm, the melting temperature of the natural mineral powder and the metal powder is >950°C, and the ceramic powder is a natural or synthetic compound after molding A class of inorganic non-metallic material powders made by sintering with high temperature; the glass powders are based on weight percentages, and the content of alumina in the glass powders is 12-48%, and the content of magnesium oxide is 0-48%. 15%, the content of silicon oxide is 30-82%, the content of calcium oxide is 0-15%, and the content of boron oxide is 0-15%; , the content of the filling powder particles is 20-92%, and the content of the glass powder particles is 8-80%.
The application according to claim 1, wherein the thermal expansion rate of the glass composite material from 0-40°C to 860°C is equal to or lower than 9.5 (×10-6/°C).
The application according to claim 1, wherein the softening point temperature of the glass composite material is equal to or greater than 900°C.
The application according to claim 1, wherein the thermal expansion rate of the glass composite material from 0-40°C to 910°C is equal to or lower than 9.5 (×10-6/°C).
The application according to claim 1, wherein the softening temperature of the glass composite material is >1100°C.
The application according to claim 5, wherein, in the glass powder, the content of alumina in the glass powder is 35-44%, and the content of magnesium oxide is 5-15% in terms of weight percentage, The content of silicon oxide is 26-40%, the content of calcium oxide is 6-15%, and the content of boron oxide is 3-6%.
The application according to claim 1, characterized in that, the diameter of the filled powder particles is less than 0.01 mm.
The application according to claim 1, wherein the ceramic powder is alumina ceramic powder or zirconia ceramic powder or silicon nitride ceramic powder or silicon carbide ceramic powder or magnesium aluminum spinel ceramic powder.
The application according to claim 1, wherein the natural mineral powder is bauxite powder or quartz stone powder or granite powder or silica sand powder or andalusite powder or kyanite powder or sillimanite powder grain.
The application according to claim 1, wherein the metal powder is copper alloy powder or gray cast iron powder or alloy steel powder or tungsten alloy powder or chromium alloy powder.
The application according to any one of claims 1-10 is characterized in that, the glass composite material according to any one of claims 1-10 is used for the cylinder liner of vehicle engine, marine engine, thermal engine piston aircraft engine .
The application according to any one of claims 1-10 is characterized in that, the glass composite material according to any one of claims 1-10 is covered on the combustion chamber of a heat engine turbine engine and the casing surface of the turbine.
The application according to any one of claims 1-10, characterized in that, the glass composite material according to any one of claims 1-10 is covered on the steam chamber wall and/or the surface layer of the cylinder layer and/or the steam chamber wall of the steam turbine. The steam nozzle skin and/or the steel disc skin and/or the blade skin and/or the cylinder body skin and/or the steam conveying pipe skin.
The application according to any one of claims 1-10, characterized in that, the glass composite material according to any one of claims 1-10 is covered on a cylinder liner and/or a turbocharger of a piston engine of a generator The surface of the housing of the system components.
The application according to any one of claims 1-10 is characterized in that, the glass composite material according to any one of claims 1-10 is used in a heat engine type engine.
The application according to claim 13 is characterized in that the glass composite material according to any one of claims 1-10 is used for the cylinder block and cylinder liner of the engine cylinder of the heat engine type.
The application according to any one of claims 1-10 is characterized in that, the glass composite material according to any one of claims 1-10 is covered on the surface of the casing of a turbocharger system component of a heat engine type engine.
The application according to any one of claims 1-10, wherein the glass composite material according to any one of claims 1-10 is used in a cylinder head and/or a piston and/or a piston of a heat engine type engine Pins and/or connecting rods and/or intake and/or exhaust valves.
The application according to any one of claims 1-10, characterized in that, the glass composite material according to any one of claims 1-10 is used in a cylinder liner of a heat engine engine, and a cylinder liner of a heat engine engine It includes an inner layer and an outer layer, the outer layer is made of the glass composite material, the outer layer is sleeved on the periphery of the inner layer and forms a fixed connection with the inner layer, and the inner layer is made of a ceramic material become.
The application according to any one of claims 1-10 is characterized in that, the glass composite material according to any one of claims 1-10 is used for foamed glass material.
The use according to any one of claims 1-10, characterized in that the glass composite material according to any one of claims 1-10 is used for a composite material comprising fibers.
The use according to any one of claims 1-10, characterized in that the glass composite material according to any one of claims 1-10 is used for tubular materials.
The application according to any one of claims 1-10 is characterized in that, the glass composite material according to any one of claims 1-10 is used as a flat plate material.