CN109081594A - Yttrium alumina silicate glass ceramics and preparation method thereof - Google Patents
Yttrium alumina silicate glass ceramics and preparation method thereof Download PDFInfo
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- CN109081594A CN109081594A CN201811093747.0A CN201811093747A CN109081594A CN 109081594 A CN109081594 A CN 109081594A CN 201811093747 A CN201811093747 A CN 201811093747A CN 109081594 A CN109081594 A CN 109081594A
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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
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
Abstract
The invention discloses a kind of preparation methods of yttrium alumina silicate glass ceramics, include: to mix in proportion each raw material component, molten state and constant temperature is heated to, by melt liquid curing molding, cooling is handled after keeping the temperature preset time, obtains yttrium alumina silicate glass ceramics；Or mix in proportion each raw material component, it is heated to molten state and constant temperature preset time later, then melt liquid water quenching cooling is solidified, obtains yttrium alumina silicate glass；Be nucleated by yttrium alumina silicate glass through the first heating and after isothermal holding, after after the second heating and isothermal holding crystallization, it is cooling, obtain yttrium alumina silicate glass ceramics.The invention also discloses a kind of yttrium alumina silicate glass ceramics.Can obtain crystal phase using the present invention is Y2Si2O7Low-expansion coefficient yttrium alumina silicate glass ceramics.
Description
Technical field
The present invention relates to a kind of glass ceramics, specifically, are related to a kind of yttrium alumina silicate glass ceramics and preparation method thereof.
Background technique
Based on unique design feature and excellent physical and chemical performance, yttrium silicate be widely used in high-temperature structural ceramics,
The fields such as high-temperature oxidation resistant protective film, heat barrier coat material, dielectric material and antifriction material；Such as: yttrium silicate is added to Si3N4
With can be improved its high-temperature mechanical property and thermal property in SiC ceramic.Specifically, yttrium silicate has Y2Si2O7、Y2SiO5And Y4.67
(SiO4)3Tri- kinds of crystal structures of O.
Yttrium alumina silicate glass may be used as the sintering aid of SiC ceramic since it is with low thermal expansion coefficient.But
The presence of glass phase can reduce the mechanical performance and antioxygenic property of ceramics, can weaken glass phase after crystallizing glass phase
These are influenced.The thermal expansion coefficient for the crystal being precipitated in SiC ceramic and yttrium alumina silicate glass are as follows: SiC (4.5 × 10-6K-1)、Y3Al5O12(9.26×10-6K-1)、Y2SiO5(7.06×10-6K-1)、Y2Si2O7(3.96×10-6K-1)、Si2Al6O13
(4.56×10-6K-1).Compare the above numerical value, only Y2Si2O7Thermal expansion coefficient it is lower than SiC ceramic, be accordingly used in sintering help
Y is precipitated in the yttrium alumina silicate glass of agent2Si2O7Crystal is very favorable.
Currently, although there are many Y is precipitated about yttrium alumina silicate glass2Si2O7The report of crystal, but these glass exist
Y is precipitated2Si2O7There are also the precipitation of other crystal while crystal, Y is individually precipitated2Si2O7The yttrium alumina silicate glass of crystal there is not yet
Report.
Summary of the invention
In view of the shortcomings of the prior art, the present invention is intended to provide a kind of yttrium alumina silicate glass ceramics and preparation method thereof.
Using method provided by the invention, by Y2O3、Al2O3And SiO2After being melting into glass according to a certain percentage, then glass is carried out
Crystallization heat treatment, can obtain crystal phase is Y2Si2O7Low-expansion coefficient yttrium alumina silicate glass ceramics.
For this purpose, the invention provides the following technical scheme:
In a first aspect, the present invention provides a kind of yttrium alumina silicate glass ceramics, the raw material components of glass ceramics are prepared by matter
Measure part meter, comprising: Y2O340~56 mass parts, Al2O310~24 mass parts and SiO226~40 mass parts.
Preferably, the raw material components of the glass ceramics are prepared by mass percentage, by Y2O343~53%, Al2O3
15~24% and SiO227~37% compositions.
Preferably, the crystal phase of glass ceramics is Y2Si2O7, and only Y2Si2O7Crystal.
The each raw material component for preparing yttrium alumina silicate glass ceramics of the present invention is according to mass parts as proportion, in production
Can increase or reduce according to corresponding ratio, as large-scale production can by kilogram or as unit of ton, small-scale production can also be with
It gram is unit, quality can increase or reduce, but the quality proportioning constant rate between each composition.
Second aspect, the present invention provide a kind of preparation method of yttrium alumina silicate glass ceramics, comprising the following steps: S1:
Each raw material component is mixed in proportion, be heated to later molten state and constant temperature (1450~1850 DEG C) preset time (1~
4h), then melt liquid curing molding is carried out cooling processing after keeping the temperature (700~900 DEG C) preset time (1~2h), obtained
Yttrium alumina silicate glass；Or each raw material component is mixed in proportion, be heated to later molten state and constant temperature (1450~
1850 DEG C) preset time (1~4h), then melt liquid water quenching cooling is solidified, obtains yttrium alumina silicate glass；S2: by institute
State yttrium alumina silicate glass through the first heating (1~8 DEG C/min) and keep the temperature (910~960 DEG C) processing after be nucleated, after through second
Heating (1~8 DEG C/min) and crystallization then through cooling treatment obtains yttrium aluminosilicate after keeping the temperature (1080~1350 DEG C) processing
Glass ceramics.
Preferably, in S1: mixed raw material components being warming up to 1450~1850 DEG C and keeping the temperature makes raw material be melt into liquid
State, preferably 1500 DEG C~1700 DEG C, 1~4h of constant temperature, preferably 2~3h.
Preferably, temperature-rise period carries out in silicon molybdenum furnace.
Preferably, in S1: melt liquid being poured on to curing molding in warmed-up graphite grinding tool, later in 700~900 DEG C
Keep the temperature 1~2h, preferably 750 DEG C~850 DEG C.Then it is down to room temperature, obtains yttrium alumina silicate glass.
Preferably, insulating process carries out in batch-type furnace.
Preferably, each raw material component is mixed in proportion, is heated to molten state and constant temperature preset time later, then
Melt liquid water quenching cooling is solidified, yttrium alumina silicate glass is obtained.
Preferably, in S2: the first heating and isothermal holding specifically: with the heating rate of 1~8 DEG C/min to 910~960
DEG C, preferred heating rate is 4~6 DEG C/min, and preferred holding temperature is 920 DEG C~940 DEG C.1~8h is kept the temperature later, preferably
For 1~3h.
Preferably, the second heating and isothermal holding specifically: with the heating rate of 1~8 DEG C/min to 1080~1350 DEG C,
Preferred heating rate is 4~6 DEG C/min, and preferred holding temperature is 1100~1300 DEG C.1~10h is kept the temperature later, preferably
3~8h.
The above technical solution of the present invention has the following advantages over the prior art:
(1) applicant has found by many experiments: method provided by the invention is used, by Y2O3、Al2O3And SiO2According to one
After fixed ratio is melting into glass, then crystallization heat treatment is carried out to glass, it is Y that crystal phase, which can be prepared,2Si2O7Yttrium aluminium silicon
Silicate glass ceramics.
(2) the yttrium alumina silicate glass ceramics that the present invention prepares, the crystal phase of precipitation is Y2Si2O7, due to Y2Si2O7Have
Low thermal expansion coefficient, therefore can be good at bonding and sealing-in applied to SiC ceramic, and improve ceramics mechanical performance and
Antioxygenic property.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Fig. 1 is the differential scanning calorimetric curve figure of yttrium alumina silicate glass in the embodiment of the present invention one；
Fig. 2 is the embodiment of the present invention one, the X-ray of yttrium alumina silicate glass ceramics is spread out in comparative example one and comparative example two
Penetrate analysis of spectra；
Fig. 3 is that crystal phase is Y in the embodiment of the present invention one2Si2O7Yttrium alumina silicate glass ceramics stereoscan photograph；
Fig. 4 is that comparative example two of the present invention is not melting into glass, the photo crystallized.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing.Following embodiment is only used for clearer
Illustrate technical solution of the present invention, therefore be only used as example, and not intended to limit the protection scope of the present invention.
Experimental method in following embodiments is unless otherwise specified conventional method.Examination as used in the following examples
Material is tested, is to be commercially available from conventional reagent shop unless otherwise specified.Quantitative test in following embodiment, is all provided with
Three repeated experiments are set, data are the average value or mean+SD of three repeated experiments.
The present invention provides a kind of preparation method of yttrium alumina silicate glass ceramics, comprising the following steps:
S1: each raw material component is mixed in proportion, be placed in silica crucible or corundum crucible, be put into silicon molybdenum furnace
In, 1450~1850 DEG C are warming up to, raw material is made to be melt into liquid, and 1~4h of constant temperature at a temperature of 1450~1850 DEG C；Then will
Melt liquid in crucible is poured on curing molding in warmed-up graphite grinding tool, is put into rapidly in 700~900 DEG C of batch-type furnaces, protects
1~2h of temperature, is down to room temperature with furnace, and transparent yttrium alumina silicate glass is made；Or solidify melt liquid water quenching cooling in crucible, it obtains
To yttrium alumina silicate glass.Wherein, each raw material component is mixed in following ratios: Y2O340~56 mass parts, Al2O310~
24 mass parts and SiO226~40 mass parts.
S2: obtaining the glass transition temperature and crystallization peak temperature of glass by differential scanning calorimetric analysis, make with
Lower crystallization heat treating regime.Transparent yttrium alumina silicate glass sample is put into chamber type electric resistance furnace, with the heating of 1~8 DEG C/min
Rate is to 910~960 DEG C, heat preservation 1~8h nucleation；Continue with the heating rate of 1~8 DEG C/min to 1080~1350 DEG C, heat preservation 2
~10h crystallization, sample furnace cooling obtain yttrium alumina silicate glass ceramics.
X-ray diffraction analysis is used to determine the crystal phase of yttrium alumina silicate glass ceramics for Y later2Si2O7；Using scanning electricity
The micro- sem observation crystal phase of son is Y2Si2O7Yttrium alumina silicate glass ceramics microscopic appearance.
It is illustrated combined with specific embodiments below.
Embodiment 1
It is Y the present embodiment provides a kind of crystal phase2Si2O7The preparation method of low-expansion yttrium alumina silicate glass ceramics,
The following steps are included:
S1: according to mass percent 44%Y2O3, 20%Al2O3And 36%SiO2Each component is weighed, and said components are filled
Divide and be uniformly mixed, is placed in corundum crucible, is put into silicon molybdenum furnace, is warming up to 1550 DEG C, so that raw material is melt into liquid, and 1550
Keep the temperature 3h at a temperature of DEG C, the liquid in crucible be poured on to curing molding in warmed-up graphite grinding tool, be put into rapidly 800 DEG C it is box
In furnace, 2h is kept the temperature, room temperature is down to furnace, transparent yttrium alumina silicate glass is made.
S2: the glass transition temperature and crystallization peak temperature of glass are obtained by differential scanning calorimetric analysis instrument, such as Fig. 1 institute
Show, makes following crystallization heat treating regime；Transparent yttrium alumina silicate glass sample is put into chamber type electric resistance furnace, with 5 DEG C/
The heating rate of min is to 920 DEG C, heat preservation 2h nucleation；Continue with the heating rate of 5 DEG C/min to 1150 DEG C, keeps the temperature 3h crystallization, obtain
To yttrium alumina silicate glass ceramics.
X-ray diffraction analysis is used to determine the crystal phase of yttrium alumina silicate glass ceramics for Y2Si2O7, as shown in Figure 2；Using
It is Y that scanning electron microscope, which observes crystal phase,2Si2O7Yttrium alumina silicate glass ceramics microscopic appearance, as shown in Figure 3.
Embodiment 2
It is Y the present embodiment provides a kind of crystal phase2Si2O7The preparation method of low-expansion yttrium alumina silicate glass ceramics,
The following steps are included:
S1: according to mass percent 53%Y2O3, 17%Al2O3And 30%SiO2Each component is weighed, and said components are filled
Divide and be uniformly mixed, is placed in corundum crucible, is put into silicon molybdenum furnace, is warming up to 1650 DEG C, so that raw material is melt into liquid, and 1650
Keep the temperature 3h at a temperature of DEG C, the liquid in crucible be poured on to curing molding in warmed-up graphite grinding tool, be put into rapidly 820 DEG C it is box
In furnace, 2h is kept the temperature, room temperature is down to furnace, transparent yttrium alumina silicate glass is made.
S2: the glass transition temperature and crystallization peak temperature of glass are obtained by differential scanning calorimetric analysis instrument, made
Following crystallization heat treating regime；Transparent yttrium alumina silicate glass sample is put into chamber type electric resistance furnace, with the heating speed of 5 DEG C/min
Rate is to 940 DEG C, heat preservation 2h nucleation；Continue with the heating rate of 5 DEG C/min to 1300 DEG C, keeps the temperature 3h crystallization, obtain yttrium manosil AS
Salt glass ceramics.
X-ray diffraction analysis is used to determine the crystal phase of yttrium alumina silicate glass ceramics for Y2Si2O7；It is aobvious using scanning electron
It is Y that micro mirror, which observes crystal phase,2Si2O7Yttrium alumina silicate glass ceramics microscopic appearance.
Embodiment 3
It is Y the present embodiment provides a kind of crystal phase2Si2O7The preparation method of low-expansion yttrium alumina silicate glass ceramics,
The following steps are included:
S1: according to mass percent 50%Y2O3, 20%Al2O3And 30%SiO2Each component is weighed, and said components are filled
Divide and be uniformly mixed, is placed in corundum crucible, is put into silicon molybdenum furnace, is warming up to 1590 DEG C, so that raw material is melt into liquid, and 1590
3h is kept the temperature at a temperature of DEG C, then solidifies melt liquid water quenching cooling, obtains yttrium alumina silicate glass.
S2: the glass transition temperature and crystallization peak temperature of glass are obtained by differential scanning calorimetric analysis instrument, made
Following crystallization heat treating regime；Transparent yttrium alumina silicate glass sample is put into chamber type electric resistance furnace, with the heating speed of 5 DEG C/min
Rate is to 930 DEG C, heat preservation 2h nucleation；Continue with the heating rate of 5 DEG C/min to 1250 DEG C, keeps the temperature 3h crystallization, obtain yttrium manosil AS
Salt glass ceramics.
X-ray diffraction analysis is used to determine the crystal phase of yttrium alumina silicate glass ceramics for Y2Si2O7；It is aobvious using scanning electron
It is Y that micro mirror, which observes crystal phase,2Si2O7Yttrium alumina silicate glass ceramics microscopic appearance.
Embodiment 4
It is Y the present embodiment provides a kind of crystal phase2Si2O7The preparation method of low-expansion yttrium alumina silicate glass ceramics,
The following steps are included:
S1: according to mass percent 48%Y2O3, 18%Al2O3And 34%SiO2Each component is weighed, and said components are filled
Divide and be uniformly mixed, is placed in corundum crucible, is put into silicon molybdenum furnace, is warming up to 1550 DEG C, so that raw material is melt into liquid, and 1550
3h is kept the temperature at a temperature of DEG C, then solidifies melt liquid water quenching cooling, obtains yttrium alumina silicate glass.
S2: the glass transition temperature and crystallization peak temperature of glass are obtained by differential scanning calorimetric analysis instrument, made
Following crystallization heat treating regime；Transparent yttrium alumina silicate glass sample is put into chamber type electric resistance furnace, with the heating speed of 5 DEG C/min
Rate is to 920 DEG C, heat preservation 1h nucleation；Continue with the heating rate of 5 DEG C/min to 1150 DEG C, keeps the temperature 3h crystallization, obtain yttrium manosil AS
Salt glass ceramics.
X-ray diffraction analysis is used to determine the crystal phase of yttrium alumina silicate glass ceramics for Y2Si2O7；It is aobvious using scanning electron
It is Y that micro mirror, which observes crystal phase,2Si2O7Yttrium alumina silicate glass ceramics microscopic appearance.
In addition, following comparative example is arranged in order to further highlight the advantage of technical solution of the present invention.It should be noted that
Following comparative examples are arranged on the basis of example 1.
Comparative example 1
Compared with Example 1, the ratio of raw material components is different in step S1 for this comparative example.Specifically:
This comparative example provides a kind of preparation method of yttrium alumina silicate glass ceramics, comprising the following steps:
S1: according to mass percent 38%Y2O3, 26%Al2O3And 36%SiO2Each component is weighed, and said components are filled
Divide and be uniformly mixed, is placed in corundum crucible, is put into silicon molybdenum furnace, is warming up to 1550 DEG C, so that raw material is melt into liquid, and 1550
Keep the temperature 3h at a temperature of DEG C, the liquid in crucible be poured on to curing molding in warmed-up graphite grinding tool, be put into rapidly 800 DEG C it is box
In furnace, 2h is kept the temperature, room temperature is down to furnace, transparent yttrium alumina silicate glass is made.
S2: the glass transition temperature and crystallization peak temperature of glass are obtained by differential scanning calorimetric analysis instrument, such as Fig. 1 institute
Show, makes following crystallization heat treating regime；Transparent yttrium alumina silicate glass sample is put into chamber type electric resistance furnace, with 5 DEG C/
The heating rate of min is to 920 DEG C, heat preservation 2h nucleation；Continue with the heating rate of 5 DEG C/min to 1150 DEG C, keeps the temperature 3h crystallization, obtain
To yttrium alumina silicate glass ceramics.
X-ray diffraction analysis is used to determine the crystal phase of yttrium alumina silicate glass ceramics for SiO2、Y2Si2O7、Al6Si2O13, do not have
There is Y2Si2O7Apatite crystal phase is precipitated, as shown in Figure 2.
Comparative example 2
Compared with Example 1, the ratio of raw material components is different in step S1 for this comparative example.Specifically:
This comparative example provides a kind of preparation method of yttrium alumina silicate glass ceramics, comprising the following steps:
S1: according to mass percent 60%Y2O3, 20%Al2O3And 20%SiO2Each component is weighed, and said components are filled
Divide and be uniformly mixed, is placed in corundum crucible, is put into silicon molybdenum furnace, is warming up to 1550 DEG C, so that raw material is melt into liquid, and 1550
3h is kept the temperature at a temperature of DEG C, the liquid in crucible is poured on to curing molding in warmed-up graphite grinding tool, discovery melt liquid can be fast
Speed crystallization cannot form glass, see Fig. 4.
Comparative example 3
Compared with Example 1, the crystallization heat treatment temperature system in step S2 is different for this comparative example.Specifically:
This comparative example provides a kind of preparation method of yttrium alumina silicate glass ceramics, comprising the following steps:
S1: according to mass percent 44%Y2O3, 20%Al2O3And 36%SiO2Each component is weighed, and said components are filled
Divide and be uniformly mixed, is placed in corundum crucible, is put into silicon molybdenum furnace, is warming up to 1550 DEG C, so that raw material is melt into liquid, and 1550
Keep the temperature 3h at a temperature of DEG C, the liquid in crucible be poured on to curing molding in warmed-up graphite grinding tool, be put into rapidly 800 DEG C it is box
In furnace, 2h is kept the temperature, room temperature is down to furnace, transparent yttrium alumina silicate glass is made.
S2: the glass transition temperature and crystallization peak temperature of glass are obtained by differential scanning calorimetric analysis instrument, such as Fig. 1 institute
Show, makes following crystallization heat treating regime；Transparent yttrium alumina silicate glass sample is put into chamber type electric resistance furnace, with 5 DEG C/
The heating rate of min is to 920 DEG C, heat preservation 2h nucleation；Continue with the heating rate of 5 DEG C/min to 1060 DEG C, keeps the temperature 3h crystallization, obtain
To yttrium alumina silicate glass ceramics.
Determine that yttrium alumina silicate glass does not precipitate crystal using X-ray diffraction analysis, as shown in Figure 2.
Certainly, the case where enumerating in addition to embodiment one to embodiment three, other parameters and condition in preparation process are also
Can with.
Using method provided by the invention, by Y2O3、Al2O3And SiO2After being melting into glass according to a certain percentage, then it is right
Glass carries out crystallization heat treatment, and can obtain crystal phase is Y2Si2O7Low-expansion coefficient yttrium alumina silicate glass ceramics.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more of the features.In the description of the present invention,
The meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of yttrium alumina silicate glass ceramics, which is characterized in that prepare the raw material components pro rata of the glass ceramics, wrap
It includes: Y2O340~56 mass parts, Al2O310~24 mass parts and SiO226~40 mass parts.
2. yttrium alumina silicate glass ceramics according to claim 1, it is characterised in that: prepare the raw material group of the glass ceramics
Divide by mass percentage, preferably by Y2O343~53%, Al2O315~24% and SiO227~37% compositions.
3. yttrium alumina silicate glass according to claim 1 or claim 2 ceramics, it is characterised in that: the crystal phase of the glass ceramics is
Y2Si2O7, and only Y2Si2O7Crystal.
4. a kind of preparation method of yttrium alumina silicate glass ceramics, comprising:
S1: each raw material component is mixed in proportion, be heated to later molten state and 1450 DEG C~1850 DEG C of constant temperature it is default when
Between 1~4h carry out cooling processing then by melt liquid curing molding after keeping the temperature 700 DEG C~900 DEG C 1~2h of preset time, obtain
To yttrium alumina silicate glass；Or mix in proportion each raw material component, it is heated to molten state and 1450 DEG C of constant temperature later
~1850 DEG C of 1~4h of preset time, then solidify melt liquid water quenching cooling, obtain yttrium alumina silicate glass；
S2: being nucleated by the yttrium alumina silicate glass through 1~8 DEG C/min of the first heating and after keeping the temperature 910 DEG C~960 DEG C processing,
After through the second 1~8 DEG C/min of heating and after keeping the temperature 1080 DEG C~1350 DEG C processing, crystallization then through cooling treatment obtains yttrium
Alumina silicate glass ceramics.
5. the preparation method of yttrium alumina silicate glass ceramics according to claim 4, it is characterised in that: in the S1: will mix
Raw material components after conjunction, which are warming up to 1500 DEG C~1700 DEG C and keep the temperature, makes raw material be melt into liquid, and constant temperature time is 2~3h.
6. the preparation method of yttrium alumina silicate glass ceramics according to claim 5, it is characterised in that: the temperature-rise period in
It is carried out in silicon molybdenum furnace.
7. the preparation method of yttrium alumina silicate glass ceramics according to claim 4, it is characterised in that: in the S1, by institute
It states melt liquid and is poured on curing molding in warmed-up graphite grinding tool, later in 750 DEG C~850 DEG C 1~2h of heat preservation；Then it is down to
Room temperature obtains the yttrium alumina silicate glass.
8. the preparation method of yttrium alumina silicate glass ceramics according to claim 7, it is characterised in that: the insulating process in
It is carried out in batch-type furnace.
9. the preparation method of yttrium alumina silicate glass ceramics according to claim 4, it is characterised in that: described in the S2
The first heating and isothermal holding specifically: with the heating rate of 1~8 DEG C/min to 910~960 DEG C, preferred heating rate is 4
~6 DEG C/min, preferred holding temperature is 920 DEG C~940 DEG C；1~3h is kept the temperature later.
10. the preparation method of yttrium alumina silicate glass ceramics according to claim 4, it is characterised in that: second heating
And isothermal holding specifically: preferred heating rate is 4~6 DEG C/min, and preferred holding temperature is 1100~1300 DEG C；Later
Keep the temperature 3~8h.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112521012A (en) * | 2020-11-11 | 2021-03-19 | 晶研一材料科技(宜兴)有限公司 | Heat-resistant high-hardness high-light-transmittance glass ceramic and preparation method thereof |
| CN112521016A (en) * | 2020-12-30 | 2021-03-19 | 上海理工大学 | Yttrium fluosilicate crystalline phase yttrium aluminum silicate oxyfluoride glass ceramic and preparation method thereof |
| KR102308652B1 (en) * | 2020-05-27 | 2021-10-05 | 코닝 인코포레이티드 | glass-ceramics with high elastic modulus and hardness |
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| KR102308652B1 (en) * | 2020-05-27 | 2021-10-05 | 코닝 인코포레이티드 | glass-ceramics with high elastic modulus and hardness |
| US11661372B2 (en) | 2020-05-27 | 2023-05-30 | Corning Incorporated | Glass-ceramics with high elastic modulus and hardness |
| CN112521012A (en) * | 2020-11-11 | 2021-03-19 | 晶研一材料科技(宜兴)有限公司 | Heat-resistant high-hardness high-light-transmittance glass ceramic and preparation method thereof |
| CN112521012B (en) * | 2020-11-11 | 2022-07-05 | 晶研一材料科技(宜兴)有限公司 | Heat-resistant high-hardness high-light-transmittance glass ceramic and preparation method thereof |
| CN112521016A (en) * | 2020-12-30 | 2021-03-19 | 上海理工大学 | Yttrium fluosilicate crystalline phase yttrium aluminum silicate oxyfluoride glass ceramic and preparation method thereof |
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