CN110357436A - A kind of polycrystalline phase devitrified glass - Google Patents
A kind of polycrystalline phase devitrified glass Download PDFInfo
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- CN110357436A CN110357436A CN201810890561.1A CN201810890561A CN110357436A CN 110357436 A CN110357436 A CN 110357436A CN 201810890561 A CN201810890561 A CN 201810890561A CN 110357436 A CN110357436 A CN 110357436A
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- Prior art keywords
- devitrified glass
- polycrystalline phase
- phase devitrified
- parts
- polycrystalline
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/0009—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition containing silica as main constituent
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/16—Halogen containing crystalline phase
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The invention discloses a kind of polycrystalline phase devitrified glasses, it by weight include following ingredient: 45-70 parts of silica, 3-10 parts of potassium oxides, 25-30 parts of calcium oxide, 11-15 parts of fluorine, 8-12 parts of sodium oxide molybdenas, 3-6 parts of phosphorus pentoxides, 1-3 parts of aluminium oxide, 3-5 parts of zirconium oxides, 3-5 parts of zinc oxide, the principal crystalline phase of polycrystalline phase devitrified glass are Na4~3K2~3Ca5(Si12O30)F4And Ca5F(PO4)3.Translucent Yu Zhizhuan is presented in polycrystalline phase devitrified glass perception of the invention, and moisture and wax sense with natural jade, hardness, toughness and wearability are all good.
Description
Technical field
The present invention relates to glass-ceramic field, in particular to a kind of polycrystalline phase devitrified glass.
Background technique
Devitrified glass is also known as glass-ceramic, is solid material prepared by controlling crystallizing after melting raw material, has glass
The double grading of glass and ceramics.Devitrified glass is made of crystal, and atomic arrangement is regular, and therefore, devitrified glass is than ceramics
Brightness is high, and stronger than glass toughness.Devitrified glass has concentrated triple advantages of glass, ceramics and lithotome, better than natural
Stone material and ceramics can be used for building curtain wall and indoor high-grade decoration, can also do structural material mechanically, on electronics, electrician
Insulating materials, the heat-resisting column vessel of baseboard material, the micro-wave oven of large scale integrated circuit, chemical industry and the wear-resisting material of anti-corrosion material and mine
Material etc., becomes the substitute products of ideal high-grade stone.
Existing devitrified glass is difficult to take into account a variety of different mechanical properties such as hardness, toughness and wearability, reduces micro-
The machinability of crystal glass, causes the application range of devitrified glass smaller, seriously inhibits the development of devitrified glass industry.
Summary of the invention
It is an object of the present invention to provide a kind of hardness, the new skill of toughness and all good polycrystalline phase devitrified glass of wearability
Art scheme.
According to the first aspect of the invention, a kind of polycrystalline phase devitrified glass is provided.
The polycrystalline phase devitrified glass includes following ingredient by weight:
The principal crystalline phase of the polycrystalline phase devitrified glass is Na4~3K2~3Ca5(Si12O30)F4And Ca5F(PO4)3。
Optionally, the Na4~3K2~3Ca5(Si12O30)F4And Ca5F(PO4)3Weight ratio be (3-4): (1-2).
Optionally, the Na4~3K2~3Ca5(Si12O30)F4With laminated structure, the Ca5F(PO4)3With needle-shaped knot
Structure, and the Na4~3K2~3Ca5(Si12O30)F4With the Ca5F(PO4)3Constitute reticular structure.
Optionally, the Na4~3K2~3Ca5(Si12O30)F4A length of 1 μm -25 μm of crystal, the Na4~3K2~3Ca5
(Si12O30)F4Crystal thickness be less than or equal to 1 μm, the Ca5F(PO4)3Crystal long be less than or equal to 100 μm.
Optionally, the polycrystalline phase devitrified glass further includes 1-3 parts of sodium nitrate by weight.
Optionally, the impact flexibility of the polycrystalline phase devitrified glass is 5.2kj/cm2~5.8kj/cm2。
Optionally, the Mohs' hardness of the polycrystalline phase devitrified glass is 6.5~7.5.
Optionally, the bending strength of the polycrystalline phase devitrified glass is 90MPa~160MPa.
Optionally, the compression strength of the polycrystalline phase devitrified glass is 600MPa~800MPa.
Optionally, the wearability of the polycrystalline phase devitrified glass is 0.03g/cm2-0.06g/cm2。
The principal crystalline phase of polycrystalline phase devitrified glass of the invention is Na4~3K2~3Ca5(Si12O30)F4(canasite) and Ca5F
(PO4)3(fluor-apatite) effectively increases the hardness, toughness and wearability of polycrystalline phase devitrified glass, so that devitrified glass is easy
Further processing molding, can be widely used in the fields such as pipeline, liner plate, valve and brake disc.
Translucent Yu Zhizhuan is presented in polycrystalline phase devitrified glass perception of the invention, moisture and wax with natural jade
Sense, hardness, toughness and wearability are all good.
Specific embodiment
It will be described in various exemplary embodiments of the invention now.It should also be noted that unless specifically stated otherwise, otherwise
The component and the positioned opposite of step, numerical expression and numerical value illustrated in these embodiments does not limit the scope of the invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It is difficult to take into account a variety of different mechanical properties such as hardness, toughness and wearability to solve existing devitrified glass
Problem, the present invention provides a kind of polycrystalline phase devitrified glasses.
The each component of polycrystalline phase devitrified glass of the invention by weight can be defined below:
Silica assigns the good chemical stability of devitrified glass and thermal stability, can improve the intensity of devitrified glass,
Reduce the coefficient of expansion of devitrified glass, therefore the content setting of silica are as follows: 45-70 parts of silica.
Potassium oxide is good cosolvent, can improve the glossiness of devitrified glass, promote the fusing and clarification of glass metal, also
The viscosity of glass metal, therefore the content setting of potassium oxide can be reduced are as follows: 3-10 parts of potassium oxides.
Calcium oxide can reduce the high temperature viscosity of glass metal, promote the fusing and clarification of glass metal, increase the change of devitrified glass
Learn stability, mechanical strength and hardness, therefore the content setting of calcium oxide are as follows: 25-30 parts of calcium oxide.
Fluorine is a kind of excellent opacifiers, therefore the content of fluorine is set are as follows: 11-15 parts of fluorine.
Sodium oxide molybdena can reduce the viscosity of glass metal, promote the fusing and clarification of glass metal, therefore the content setting of sodium oxide molybdena
Are as follows: 8-12 parts of sodium oxide molybdenas.
Phosphorus pentoxide is to form Ca5F(PO4)3The Nucleating Agent of crystal phase, and the viscosity of glass melt can be reduced, facilitate
The melting of zirconium oxide, therefore the content setting of phosphorus pentoxide are as follows: 3-6 parts of phosphorus pentoxides.
Aluminium oxide can reduce the tendency towards devitrification of devitrified glass, improve chemical stability and mechanical strength and hardness, improve
Thermal stability reduces electrical insulating property, therefore the content setting of aluminium oxide are as follows: 1-3 parts of aluminium oxide.
Zirconium oxide can increase the chemical stability of devitrified glass, therefore the content setting of zirconium oxide are as follows: 3-5 parts of oxidations
Zirconium.
Zinc oxide can reduce the softening point temperature of devitrified glass, improve the chemical stability of devitrified glass, therefore zinc oxide
Content setting are as follows: 3-5 parts of zinc oxide.
The wearability of devitrified glass, therefore the content setting of sodium nitrate can be improved in sodium nitrate are as follows: 1-3 parts of sodium nitrate.
Experimental method used in following embodiments is conventional method unless otherwise specified, used material
And reagent, it is commercially available unless otherwise specified, equipment used in experiment is ability unless otherwise specified
Equipment known to field technique personnel.
Under conditions of knowing specific component content, polycrystalline phase crystallite of the invention can be made by methods known in the art
Glass is optionally prepared as follows:
1, select quartz sand, fluorite, aluminium oxide, calcite, soda ash, potassium carbonate, sodium nitrate, phosphorus pentoxide, zirconium oxide,
One of zinc oxide or it is a variety of as raw material provide polycrystalline phase devitrified glass at being grouped as.By the ingredient of embodiment in table 1
Proportion calculates the dosage of raw material, is mixed to get basestocks after weighing.
To those skilled in the art, it prepares raw material used in polycrystalline phase devitrified glass and is not limited only to original disclosed above
The common raw materials such as potassium feldspar, albite or lime stone also may be selected in material.
2, basestocks are melted to 16h~20h at 1300 DEG C~1400 DEG C, obtain glass metal after clarification.
3, it is put into mold after glass metal to be made to the particle of 2mm~5mm, idiosome is made.
4, idiosome is kept the temperature to 1h~2h after 2h~6h is warming up to 500 DEG C~550 DEG C and carries out coring processing, then is passed through
It crosses after 10min-30min is warming up to 600 DEG C~650 DEG C and keeps the temperature the secondary coring processing of 0.5h~1h progress, be then passed through 0.5h-
Heat preservation 0.5h-2h carries out a Crystallizing treatment after 1.5h is warming up to 700 DEG C -850 DEG C, heats up followed by by 10min-30min
0.5h-2h is kept the temperature after to 900 DEG C -950 DEG C carries out secondary crystallization processing.
5, at the uniform velocity annealing obtains polycrystalline phase devitrified glass.
Table 1 is the performance parameter table of the polycrystalline phase devitrified glass under heterogeneity composition.
As shown in table 1, polycrystalline phase devitrified glass bending strength with higher and compression strength of the invention, hardness is high,
Impact flexibility is strong, and wearability is good.Finished product polycrystalline phase devitrified glass has the moisture and wax sense of natural jade, can be prepared into not
The profile of similar shape and size is to facilitate processing.
Table 1
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of polycrystalline phase devitrified glass, which is characterized in that by weight include following ingredient:
The principal crystalline phase of the polycrystalline phase devitrified glass is Na4~3K2~3Ca5(Si12O30)F4And Ca5F(PO4)3。
2. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the Na4~3K2~3Ca5(Si12O30)F4With
Ca5F(PO4)3Weight ratio be (3-4): (1-2).
3. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the Na4~3K2~3Ca5(Si12O30)F4Tool
There are laminated structure, the Ca5F(PO4)3With acicular texture, and the Na4~3K2~3Ca5(Si12O30)F4With the Ca5F
(PO4)3Constitute reticular structure.
4. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the Na4~3K2~3Ca5(Si12O30)F4's
A length of 1 μm -25 μm of crystal, the Na4~3K2~3Ca5(Si12O30)F4Crystal thickness be less than or equal to 1 μm, the Ca5F(PO4)3
Crystal long be less than or equal to 100 μm.
5. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the polycrystalline phase devitrified glass is by weight
Meter further includes 1-3 parts of sodium nitrate.
6. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the impact of the polycrystalline phase devitrified glass is tough
Property is 5.2kj/cm2~5.8kj/cm2。
7. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the Mohs of the polycrystalline phase devitrified glass is hard
Degree is 6.5~7.5.
8. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the bending of the polycrystalline phase devitrified glass is strong
Degree is 90MPa~160MPa.
9. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the pressure resistance of the polycrystalline phase devitrified glass
Degree is 600MPa~800MPa.
10. polycrystalline phase devitrified glass according to claim 1, which is characterized in that the polycrystalline phase devitrified glass it is wear-resisting
Property is 0.03g/cm2-0.06g/cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810890561.1A CN110357436A (en) | 2018-08-07 | 2018-08-07 | A kind of polycrystalline phase devitrified glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810890561.1A CN110357436A (en) | 2018-08-07 | 2018-08-07 | A kind of polycrystalline phase devitrified glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110357436A true CN110357436A (en) | 2019-10-22 |
Family
ID=68212926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810890561.1A Withdrawn CN110357436A (en) | 2018-08-07 | 2018-08-07 | A kind of polycrystalline phase devitrified glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110357436A (en) |
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2018
- 2018-08-07 CN CN201810890561.1A patent/CN110357436A/en not_active Withdrawn
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Application publication date: 20191022 |
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