CN110156334A - A kind of devitrified glass and preparation method thereof - Google Patents
A kind of devitrified glass and preparation method thereof Download PDFInfo
- Publication number
- CN110156334A CN110156334A CN201910529369.4A CN201910529369A CN110156334A CN 110156334 A CN110156334 A CN 110156334A CN 201910529369 A CN201910529369 A CN 201910529369A CN 110156334 A CN110156334 A CN 110156334A
- Authority
- CN
- China
- Prior art keywords
- devitrified glass
- glass
- temperature
- crystal grain
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Glass Compositions (AREA)
Abstract
The present invention relates to a kind of devitrified glasses and preparation method thereof, the preparation method comprises the following steps: mixture is cast as to carry out the obtained devitrified glass of Crystallizing treatment after glass, wherein mixture is mainly by 40~60wt%SiO2, 22~32wt%Al2O3, 2~9wt%MgO, 3~10wt%ZnO and 4~10wt%ZrO2Composition, Crystallizing treatment are divided into two stages, and the temperature of first stage is 680~780 DEG C, and the time is 1~4h, and the temperature of second stage is 920~980 DEG C, and the time is 1~3.5h；Using devitrified glass made from above-mentioned preparation method, mainly by glass matrix and be dispersed therein in dendroid distribution crystal grain form, crystal grain is made of cordierite crystal particle, tetragonal zircite crystal grain and gahnite crystal grain.Preparation method of the present invention is simple, and the devitrified glass with high-intensitive and high rigidity can be made without tempering processing.
Description
Technical field
The invention belongs to glass technology field, it is related to a kind of devitrified glass and preparation method thereof.
Background technique
With mobile phone, computer etc. gradually popularize and other various equipment with touch screen panel are in every profession and trade
It is widely applied, the demand of corresponding cover sheet and screen patch greatlys improve.It is commonly used for processing these cover sheets
And the material of screen patch needs to meet high mechanical strength, high Young's modulus, high chemical temperatures and lightening etc. requires.
Common soda lime glass is unable to satisfy these requirements, and even across chemical strengthening, performance is still difficult to reach requirement.
The prior art mostly uses greatly high alumina glass as processing cover sheet and the material of screen patch, wherein aluminium oxide
Al2O3Content be 18% or so.Due to alumina content height, the intensity of high lead glass is higher than common soda lime glass, at the same its from
Sub- exchange capacity is also stronger, but its intensity and hardness are not able to satisfy actual demand still.
Therefore, a kind of high-intensitive and high rigidity glass is studied to have a very important significance.
Summary of the invention
Present invention aim to address the problems that high alumina strength of glass in the prior art and hardness are not high enough, provide a kind of micro-
Crystal glass and preparation method thereof.The present invention by using high alumina, high zirconium and high zinc reasonable combination, at the crystallization to glass
Reason is not necessarily to chemical tempering, has reached high-intensitive and high rigidity, has also met the high-quality transmission requirement of signal.
In order to achieve the above objectives, the scheme that the present invention uses is as follows:
Mixture is cast as carrying out the obtained devitrified glass of Crystallizing treatment after glass by a kind of preparation method of devitrified glass,
Wherein, mixture is mainly by 40~60wt%SiO2, 22~32wt%Al2O3, 2~9wt%MgO, 3~10wt%ZnO and 4~
10wt%ZrO2Composition, Crystallizing treatment are divided into two stages, and the temperature (i.e. nucleation temperature) of first stage is 680~780 DEG C, when
Between be 1~4h, the temperature (i.e. crystallization temperature) of second stage is 920~980 DEG C, and the time is 1~3.5h, and the first stage is mainly
Nucleation stage, second stage are crystallization stages, otherwise the temperature and time in two stages of Crystallizing treatment should not too will lead to
Crystal can not be formed, or the crystal grain formed is excessive, devitrified glass becomes fragile.
The present invention ultimately forms by adjusting reasonable mixture component ratio, controlling crystallizing temperature and crystallization time
The crystal structure that grain is uniformly distributed at dendroid, substantially increases the hardness and strength of glass；Mixture mainly by 40~
60wt%SiO2, 22~32wt%Al2O3, 2~9wt%MgO, 3~10wt%ZnO and 4~10wt%ZrO2Composition, MgO,
Al2O3And SiO2It cooperates and will form the cordierite crystal particle that hardness is Mohs 7~7.5, ZrO through Crystallizing treatment2Through crystallization
Processing will form the tetragonal zircite crystal grain that hardness is Mohs 8~8.5, ZnO, Al2O3It cooperates at through crystallization with MgO
Comprehend the gahnite crystal grain to form that hardness is Mohs 7.5, the content of each component is three kinds of crystal grain shapes in mixture
At optimum range；The regulation of the temperature and time of Crystallizing treatment so that crystallite has specific number of species and size,
It is finally obtained transparent glass-ceramics, with glass and ceramic double grading, the atomic arrangement inside simple glass is that do not have
It is regular, thus simple glass is there are frangible problem, devitrified glass is made of, atomic arrangement is that have as ceramics crystal
Rule, thus devitrified glass has toughness more stronger than simple glass；For high zirconium and high lead glass, its own strong
Degree and hardness are with regard to relatively high, and the microstructure of glass changes after Crystallizing treatment, generate crystal grain, hardness and strong
Degree is significantly promoted；The glass that mobile phone backboard uses in the prior art is largely common high lead glass, is not devitrified glass, general
Lead to the content of high its aluminium oxide of lead glass usually within 20%, it is necessary to can be only achieved preliminary use intensity by chemical tempering
And hardness.
As a preferred option:
A kind of preparation method of devitrified glass as described above also contains 0~5wt%B in mixture2O3, 0.1~1wt%
Y2O3, 0.1~0.8wt%Sb2O3, 0~10wt%BaO, 0.2~2wt%La2O3It is less than the other compositions of 1.5wt% with content,
Y2O3Addition so that ZrO2Fusing point reduce, Sb2O3Added with conducive to glass clarification, La2O3Added be conducive to improve
The refractive index and intensity of glass, other components are used as Nucleating Agent and auxiliary material.
A kind of preparation method of devitrified glass as described above, casting process are as follows: the temperature by mixture at 1658 DEG C or more
After-pouring molding in 8 hours or more or compression moulding are melted under the conditions of degree, the temperature and time of casting is unsuitable too small, is otherwise easy to lead
Cause mixture fusing uneven, devitrified glass stress easy to form and be crushed.
A kind of preparation method of devitrified glass as described above is made annealing treatment after Crystallizing treatment, the temperature of annealing
Degree is 600~700 DEG C, and for annealing time depending on product size, the purpose of annealing is to eliminate product structure stress.
Using devitrified glass made from a kind of as above described in any item preparation methods of devitrified glass, mainly by glass base
Body and be dispersed therein in dendroid distribution crystal grain composition, crystal grain by cordierite crystal particle, four directions aoxidize
Zirconium crystal grain and gahnite crystal grain composition, cordierite crystal particle, tetragonal zircite crystal grain and gahnite
The partial size of crystal grain changes, glass is also by transparent change with the difference of crystallization time and crystallization temperature from nanoscale to micron order
At pottery, the Mohs' hardness of glass 6.0 is stepped up by itself, and up to 7.8.
Devitrified glass as described above, the Mohs' hardness of devitrified glass are 6.8~7.8, can in the case where guaranteeing transparent
To reach 7.0 or more, it is sufficient to meet the use of daily life, and high lead glass itself Mohs' hardness of the prior art is on 6.0 left sides
It is right；With a thickness of 0.5mm devitrified glass by weight be 50g and from the steel ball of the high-altitude free falling of 1.5m impact after it is not broken.
Devitrified glass as described above, the maximum light transmission rate with a thickness of the transparent glass-ceramics of 4mm are 80~92%, institute
The wavelength for stating light is 400~800 nanometers, and the prior art includes that this water is all not achieved in the small former and Germany's Xiao Te devitrified glass of Japan
Flat, high light transmission rate provides guarantee for the transmission of the color spray in rear road, the vividness of plated film and signal.
Devitrified glass as described above, coefficient of expansion α of devitrified glass under conditions of temperature is 30 DEG C is 34*10-7~
36*10-7/ DEG C, the coefficient of expansion of the prior art high lead glass under the conditions of same temperature is 84*10-7/ DEG C, Japanese crystallite
The coefficient of expansion is 91*10-7/℃。
The utility model has the advantages that
(1) a kind of devitrified glass of the invention has good thermal stability and higher light transmission rate；
(2) a kind of devitrified glass of the invention, hardness and strength with higher, Mohs' hardness 6.8-7.8, shock resistance
Intensity is that 50 grams of steel balls impact 0.5mm plates of 1500mm high are not broken；
(3) a kind of devitrified glass of the invention, processability is good, the not devitrification in 3D hot bending shape；
(4) preparation method of a kind of devitrified glass of the invention, by the compound of a variety of crystal phases, the performances such as chemical stability
More preferably, without carrying out chemical tempering processing；
(5) a kind of preparation method of devitrified glass of the invention is simple, great popularization.
Specific embodiment
The invention will be further elucidated with reference to specific embodiments.It should be understood that these embodiments are merely to illustrate this hair
It is bright rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, art technology
Personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Fixed range.
Embodiment 1
A kind of preparation method of devitrified glass, includes the following steps:
(1) mixture is melted to after-pouring molding in 8.3 hours or compression moulding under the conditions of 1658 DEG C of temperature, is obtained general
Logical glass, wherein mixture is by 41.8wt%SiO2, 30wt%Al2O3, 9wt%MgO, 3.8wt%ZnO, 5.8wt%ZrO2、
3.2wt%B2O3, 0.6wt%Y2O3, 0.3wt%Sb2O3, 2.5wt%BaO, 2wt%La2O3With the other compositions of 1.0wt%
(SnO2) composition；
(2) glass obtained by step (1) being subjected to Crystallizing treatment and devitrified glass is made, Crystallizing treatment is divided into two stages, the
The temperature in one stage is 680 DEG C, time 4h, and the temperature of second stage is 940 DEG C, time 2h, need to also be into after Crystallizing treatment
Row annealing, the temperature of annealing are 678 DEG C, time 4h.
Using devitrified glass made from the above method, mainly by glass matrix and be dispersed therein in dendroid distribution
Crystal grain composition, crystal grain is by cordierite crystal particle, tetragonal zircite crystal grain and gahnite crystal grain group
At；The Mohs' hardness of devitrified glass is 7.6；With a thickness of 0.5mm devitrified glass by weight be 50g and from the high-altitude of 1.5m freedom
It is not broken after the steel ball impact fallen；With a thickness of 4mm transparent glass-ceramics 400~800 nano wave lengths maximum light transmission rate
It is 92%；Coefficient of expansion α of devitrified glass under conditions of temperature is 30 DEG C is 36*10-7/℃。
Embodiment 2
A kind of preparation method of devitrified glass, includes the following steps:
(1) mixture is melted to after-pouring molding in 9.5 hours or compression moulding under the conditions of 1666 DEG C of temperature, is obtained general
Logical glass, wherein mixture is by 48wt%SiO2, 29wt%Al2O3, 5.2wt%MgO, 3wt%ZnO, 4.7wt%ZrO2、
0.1wt%Y2O3, 0.2wt%Sb2O3, 7wt%BaO, 2wt%La2O3With the other compositions (SnO of 0.8wt%2) composition；
(2) glass obtained by step (1) being subjected to Crystallizing treatment and devitrified glass is made, Crystallizing treatment is divided into two stages, the
The temperature in one stage is 700 DEG C, time 2.4h, and the temperature of second stage is 950 DEG C, time 1.5h, after Crystallizing treatment also
It need to be made annealing treatment, the temperature of annealing is 600 DEG C, time 5h.
Using devitrified glass made from the above method, mainly by glass matrix and be dispersed therein in dendroid distribution
Crystal grain composition, crystal grain is by cordierite crystal particle, tetragonal zircite crystal grain and gahnite crystal grain group
At；The Mohs' hardness of devitrified glass is 7.3；With a thickness of 0.5mm devitrified glass by weight be 50g and from the high-altitude of 1.5m freedom
It is not broken after the steel ball impact fallen；With a thickness of 4mm transparent glass-ceramics 400~800 nano wave lengths maximum light transmission rate
It is 91%；Coefficient of expansion α of devitrified glass under conditions of temperature is 30 DEG C is 35*10-7/℃。
Embodiment 3
A kind of preparation method of devitrified glass, includes the following steps:
(1) mixture is melted to after-pouring molding in 10 hours or compression moulding under the conditions of 1684 DEG C of temperature, is obtained general
Logical glass, wherein mixture is by 48.4wt%SiO2, 23.9wt%Al2O3, 2wt%MgO, 6.6wt%ZnO, 8.8wt%ZrO2、
5wt%B2O3, 0.8wt%Y2O3, 0.1wt%Sb2O3, 4.1wt%BaO, 0.2wt%La2O3With the other compositions of 0.1wt%
(SnO2) composition；
(2) glass obtained by step (1) being subjected to Crystallizing treatment and devitrified glass is made, Crystallizing treatment is divided into two stages, the
The temperature in one stage is 780 DEG C, time 1h, and the temperature of second stage is 980 DEG C, time 1h, need to also be into after Crystallizing treatment
Row annealing, the temperature of annealing are 700 DEG C, time 5h.
Using devitrified glass made from the above method, mainly by glass matrix and be dispersed therein in dendroid distribution
Crystal grain composition, crystal grain is by cordierite crystal particle, tetragonal zircite crystal grain and gahnite crystal grain group
At；The Mohs' hardness of devitrified glass is 7.2；With a thickness of 0.5mm devitrified glass by weight be 50g and from the high-altitude of 1.5m freedom
It is not broken after the steel ball impact fallen；With a thickness of 4mm transparent glass-ceramics 400~800 nano wave lengths maximum light transmission rate
It is 80%；Coefficient of expansion α of devitrified glass under conditions of temperature is 30 DEG C is 34*10-7/℃。
Embodiment 4
A kind of preparation method of devitrified glass, includes the following steps:
(1) mixture is melted to after-pouring molding in 9.8 hours or compression moulding under the conditions of 1690 DEG C of temperature, is obtained general
Logical glass, wherein mixture is by 60wt%SiO2, 22wt%Al2O3, 2wt%MgO, 7.5wt%ZnO, 5.6wt%ZrO2、
0.8wt%B2O3, 1wt%Y2O3, 0.2wt%Sb2O3, 0.7wt%La2O3With the other compositions (SnO of 0.2wt%2) composition；
(2) glass obtained by step (1) being subjected to Crystallizing treatment and devitrified glass is made, Crystallizing treatment is divided into two stages, the
The temperature in one stage is 750 DEG C, time 2.4h, and the temperature of second stage is 945 DEG C, time 3h, is also needed after Crystallizing treatment
It is made annealing treatment, the temperature of annealing is 676 DEG C, time 5h.
Using devitrified glass made from the above method, mainly by glass matrix and be dispersed therein in dendroid distribution
Crystal grain composition, crystal grain is by cordierite crystal particle, tetragonal zircite crystal grain and gahnite crystal grain group
At；The Mohs' hardness of devitrified glass is 7.0；With a thickness of 0.5mm devitrified glass by weight be 50g and from the high-altitude of 1.5m freedom
It is not broken after the steel ball impact fallen；With a thickness of 4mm transparent glass-ceramics 400~800 nano wave lengths maximum light transmission rate
It is 90%；Coefficient of expansion α of devitrified glass under conditions of temperature is 30 DEG C is 35.6*10-7/℃。
Embodiment 5
A kind of preparation method of devitrified glass, includes the following steps:
(1) mixture is melted to after-pouring molding in 12 hours or compression moulding under the conditions of 1680 DEG C of temperature, is obtained general
Logical glass, wherein mixture is by 41wt%SiO2, 25wt%Al2O3, 2.6wt%MgO, 7.9wt%ZnO, 8.2wt%ZrO2、
1.2wt%B2O3, 0.3wt%Y2O3, 0.5wt%Sb2O3, 10wt%BaO, 2wt%La2O3With the other compositions (matter of 1.3wt%
Amount is than the TiO for 1:0.32And SnO2) composition；
(2) glass obtained by step (1) being subjected to Crystallizing treatment and devitrified glass is made, Crystallizing treatment is divided into two stages, the
The temperature in one stage is 700 DEG C, time 3h, and the temperature of second stage is 955 DEG C, time 2h, need to also be into after Crystallizing treatment
Row annealing, the temperature of annealing are 658 DEG C.
Using devitrified glass made from the above method, mainly by glass matrix and be dispersed therein in dendroid distribution
Crystal grain composition, crystal grain is by cordierite crystal particle, tetragonal zircite crystal grain and gahnite crystal grain group
At；The Mohs' hardness of devitrified glass is 7.5；With a thickness of 0.5mm devitrified glass by weight be 50g and from the high-altitude of 1.5m freedom
It is not broken after the steel ball impact fallen；With a thickness of 4mm transparent glass-ceramics 400~800 nano wave lengths maximum light transmission rate
It is 90%；Coefficient of expansion α of devitrified glass under conditions of temperature is 30 DEG C is 35*10-7/℃。
Embodiment 6
A kind of preparation method of devitrified glass, includes the following steps:
(1) mixture is melted to after-pouring molding in 10.7 hours or compression moulding under the conditions of 1700 DEG C of temperature, is obtained
Simple glass, wherein mixture is by 40wt%SiO2, 32wt%Al2O3, 3.2wt%MgO, 10wt%ZnO, 10wt%ZrO2、
1.4wt%B2O3, 0.8wt%Y2O3, 0.2wt%Sb2O3, 1.2wt%BaO, 0.8wt%La2O3With the other compositions of 0.4wt%
(mass ratio is the SnO of 3:12And AgO) composition；
(2) glass obtained by step (1) being subjected to Crystallizing treatment and devitrified glass is made, Crystallizing treatment is divided into two stages, the
The temperature in one stage is 720 DEG C, time 2h, and the temperature of second stage is 980 DEG C, time 2h, need to also be into after Crystallizing treatment
Row annealing, the temperature of annealing are 680 DEG C, time 5h.
Using devitrified glass made from the above method, mainly by glass matrix and be dispersed therein in dendroid distribution
Crystal grain composition, crystal grain is by cordierite crystal particle, tetragonal zircite crystal grain and gahnite crystal grain group
At；The Mohs' hardness of devitrified glass is 7.8；With a thickness of 0.5mm devitrified glass by weight be 50g and from the high-altitude of 1.5m freedom
It is not broken after the steel ball impact fallen；With a thickness of 4mm transparent glass-ceramics 400~800 nano wave lengths maximum light transmission rate
It is 83%；Coefficient of expansion α of devitrified glass under conditions of temperature is 30 DEG C is 35.2*10-7/℃。
Embodiment 7
A kind of preparation method of devitrified glass, includes the following steps:
(1) mixture is melted to after-pouring molding in 8 hours or compression moulding under the conditions of 1688 DEG C of temperature, is obtained common
Glass, wherein mixture is by 60wt%SiO2, 22wt%Al2O3, 4.5wt%MgO, 3wt%ZnO, 4wt%ZrO2, 4.5wt%
BaO, 0.8wt%La2O3(mass ratio is the TiO of 1:0.2 with the other compositions of 1.2wt%2And SnO2) composition；
(2) glass obtained by step (1) being subjected to Crystallizing treatment and devitrified glass is made, Crystallizing treatment is divided into two stages, the
The temperature in one stage is 725 DEG C, time 3h, and the temperature of second stage is 954 DEG C, time 3.5h, is also needed after Crystallizing treatment
It is made annealing treatment, the temperature of annealing is 647 DEG C, time 5h.
Using devitrified glass made from the above method, mainly by glass matrix and be dispersed therein in dendroid distribution
Crystal grain composition, crystal grain is by cordierite crystal particle, tetragonal zircite crystal grain and gahnite crystal grain group
At；The Mohs' hardness of devitrified glass is 6.8；With a thickness of 0.5mm devitrified glass by weight be 50g and from the high-altitude of 1.5m freedom
It is not broken after the steel ball impact fallen；With a thickness of 4mm transparent glass-ceramics 400~800 nano wave lengths maximum light transmission rate
It is 89%；Coefficient of expansion α of devitrified glass under conditions of temperature is 30 DEG C is 35.6*10-7/℃。
Embodiment 8
A kind of preparation method of devitrified glass, includes the following steps:
(1) mixture is melted to after-pouring molding in 8.9 hours or compression moulding under the conditions of 1677 DEG C of temperature, is obtained general
Logical glass, wherein mixture is by 41.1wt%SiO2, 23.5wt%Al2O3, 2.7wt%MgO, 6.8wt%ZnO, 6.6wt%
ZrO2, 5wt%B2O3, 1wt%Y2O3, 0.8wt%Sb2O3, 10wt%BaO, 2wt%La2O3With the other compositions (matter of 0.5wt%
Amount is than the TiO for 3:22And SnO2) composition；
(2) glass obtained by step (1) being subjected to Crystallizing treatment and devitrified glass is made, Crystallizing treatment is divided into two stages, the
The temperature in one stage is 715 DEG C, time 2h, and the temperature of second stage is 920 DEG C, time 2h, need to also be into after Crystallizing treatment
Row annealing, the temperature of annealing are 688 DEG C, time 5h.
Using devitrified glass made from the above method, mainly by glass matrix and be dispersed therein in dendroid distribution
Crystal grain composition, crystal grain is by cordierite crystal particle, tetragonal zircite crystal grain and gahnite crystal grain group
At；The Mohs' hardness of devitrified glass is 7.0；With a thickness of 0.5mm devitrified glass by weight be 50g and from the high-altitude of 1.5m freedom
It is not broken after the steel ball impact fallen；With a thickness of 4mm transparent glass-ceramics 400~800 nano wave lengths maximum light transmission rate
It is 92%；Coefficient of expansion α of devitrified glass under conditions of temperature is 30 DEG C is 35*10-7/℃。
Claims (8)
1. a kind of preparation method of devitrified glass, it is characterized in that: progress Crystallizing treatment is made micro- after mixture is cast as glass
Crystal glass, wherein mixture is mainly by 40~60wt%SiO2, 22~32wt%Al2O3, 2~9wt%MgO, 3~10wt%
ZnO and 4~10wt%ZrO2Composition, Crystallizing treatment are divided into two stages, and the temperature of first stage is 680~780 DEG C, and the time is
1~4h, the temperature of second stage are 920~980 DEG C, and the time is 1~3.5h.
2. a kind of preparation method of devitrified glass according to claim 1, which is characterized in that in mixture also containing 0~
5wt%B2O3, 0.1~1wt%Y2O3, 0.1~0.8wt%Sb2O3, 0~10wt%BaO, 0.2~2wt%La2O3It is small with content
In the other compositions of 1.5wt%.
3. a kind of preparation method of devitrified glass according to claim 1, which is characterized in that casting process are as follows: will mix
After-pouring molding in 8 hours or more or compression moulding is melted in material under the conditions of 1658 DEG C or more of temperature.
4. a kind of preparation method of devitrified glass according to claim 1, which is characterized in that anneal after Crystallizing treatment
Processing, the temperature of annealing are 600~700 DEG C.
5. using the devitrified glass as made from a kind of Claims 1 to 4 described in any item preparation methods of devitrified glass, spy
Sign is: mainly by glass matrix and be dispersed therein in dendroid distribution crystal grain form, crystal grain is by cordierite
Crystal grain, tetragonal zircite crystal grain and gahnite crystal grain composition.
6. devitrified glass according to claim 5, which is characterized in that the Mohs' hardness of devitrified glass is 6.8~7.8；It is thick
Degree be 0.5mm devitrified glass by weight be 50g and from the steel ball of the high-altitude free falling of 1.5m impact after it is not broken.
7. devitrified glass according to claim 5, which is characterized in that with a thickness of the maximum light of the transparent glass-ceramics of 4mm
Transmitance is 80~92%, and the wavelength of the light is 400~800 nanometers.
8. devitrified glass according to claim 5, which is characterized in that devitrified glass is swollen under conditions of temperature is 30 DEG C
Swollen factor alpha is 34*10-7~36*10-7/℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910529369.4A CN110156334A (en) | 2019-06-19 | 2019-06-19 | A kind of devitrified glass and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910529369.4A CN110156334A (en) | 2019-06-19 | 2019-06-19 | A kind of devitrified glass and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110156334A true CN110156334A (en) | 2019-08-23 |
Family
ID=67625245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910529369.4A Pending CN110156334A (en) | 2019-06-19 | 2019-06-19 | A kind of devitrified glass and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110156334A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862233A (en) * | 2019-12-11 | 2020-03-06 | 赵国祥 | High-hardness, high-strength and high-transparency microcrystalline glass and preparation method and application thereof |
| CN111777333A (en) * | 2020-06-30 | 2020-10-16 | 四川大学 | Zirconium titanate/sapphirine complex phase microcrystalline glass material and preparation method thereof |
| CN112876083A (en) * | 2021-04-28 | 2021-06-01 | 深圳晶酝科技有限公司 | Microcrystalline glass material, preparation method thereof and application thereof in semiconductor device |
| WO2024113751A1 (en) * | 2022-12-02 | 2024-06-06 | 重庆鑫景特种玻璃有限公司 | Transparent colorless spinel microcrystalline glass, and preparation and use thereof |
| WO2024130984A1 (en) * | 2022-12-23 | 2024-06-27 | 重庆鑫景特种玻璃有限公司 | Transparent glass-ceramic having high scratch resistance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2691263B2 (en) * | 1989-08-11 | 1997-12-17 | 株式会社オハラ | Transparent crystallized glass |
| CN101857373A (en) * | 2010-06-03 | 2010-10-13 | 香港福山实业有限公司 | Microcrystal glass tube and preparation method thereof |
| CN102712541A (en) * | 2009-12-24 | 2012-10-03 | 法商圣高拜欧洲实验及研究中心 | Powder for glass-ceramic dry refractory material |
| CN109608047A (en) * | 2019-01-31 | 2019-04-12 | 武汉理工大学 | A kind of high-crystallinity sodium nepheline transparent glass-ceramics and preparation method thereof |
| CN109867447A (en) * | 2017-12-01 | 2019-06-11 | 成都光明光电股份有限公司 | Devitrified glass and its substrate |
-
2019
- 2019-06-19 CN CN201910529369.4A patent/CN110156334A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2691263B2 (en) * | 1989-08-11 | 1997-12-17 | 株式会社オハラ | Transparent crystallized glass |
| CN102712541A (en) * | 2009-12-24 | 2012-10-03 | 法商圣高拜欧洲实验及研究中心 | Powder for glass-ceramic dry refractory material |
| CN101857373A (en) * | 2010-06-03 | 2010-10-13 | 香港福山实业有限公司 | Microcrystal glass tube and preparation method thereof |
| CN109867447A (en) * | 2017-12-01 | 2019-06-11 | 成都光明光电股份有限公司 | Devitrified glass and its substrate |
| CN109608047A (en) * | 2019-01-31 | 2019-04-12 | 武汉理工大学 | A kind of high-crystallinity sodium nepheline transparent glass-ceramics and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杜景红: "《无机非金属材料》", 31 August 2016, 冶金工业出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110862233A (en) * | 2019-12-11 | 2020-03-06 | 赵国祥 | High-hardness, high-strength and high-transparency microcrystalline glass and preparation method and application thereof |
| CN111777333A (en) * | 2020-06-30 | 2020-10-16 | 四川大学 | Zirconium titanate/sapphirine complex phase microcrystalline glass material and preparation method thereof |
| CN111777333B (en) * | 2020-06-30 | 2021-09-24 | 四川大学 | Zirconium titanate/sapphirine complex phase microcrystalline glass material and preparation method thereof |
| CN112876083A (en) * | 2021-04-28 | 2021-06-01 | 深圳晶酝科技有限公司 | Microcrystalline glass material, preparation method thereof and application thereof in semiconductor device |
| CN112876083B (en) * | 2021-04-28 | 2021-09-10 | 深圳晶酝科技有限公司 | Microcrystalline glass material, preparation method thereof and application thereof in semiconductor device |
| WO2022228583A1 (en) * | 2021-04-28 | 2022-11-03 | 深圳晶酝科技有限公司 | Glass-ceramic material, preparation method therefor and application thereof in semiconductor devices |
| WO2024113751A1 (en) * | 2022-12-02 | 2024-06-06 | 重庆鑫景特种玻璃有限公司 | Transparent colorless spinel microcrystalline glass, and preparation and use thereof |
| WO2024130984A1 (en) * | 2022-12-23 | 2024-06-27 | 重庆鑫景特种玻璃有限公司 | Transparent glass-ceramic having high scratch resistance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110156334A (en) | A kind of devitrified glass and preparation method thereof | |
| WO2022228583A1 (en) | Glass-ceramic material, preparation method therefor and application thereof in semiconductor devices | |
| WO2020192485A1 (en) | Glass ceramic for chemical strengthening, chemically strengthened glass and application thereof, and electronic device | |
| CN110615610B (en) | Lithium-zirconium aluminosilicate glass, tempered glass, preparation methods of lithium-zirconium aluminosilicate glass and tempered glass, and display device | |
| CN115286251B (en) | Tempered glass, microcrystalline glass and preparation method and application thereof | |
| WO2016078473A1 (en) | High-hardness transparent glass ceramic and preparation method therefor | |
| CN110627365B (en) | Transparent strengthened glass ceramic and preparation method thereof | |
| JP2006500312A (en) | Crystalline glass and its use in the manufacture of glass ceramics that are easy to polish and extremely rigid and resistant to breakage | |
| CN1785868A (en) | Nano-multicrystal phase glass ceramics and its production method | |
| CN110577365A (en) | Nanocrystalline glass ceramic and preparation method thereof | |
| WO2024113751A1 (en) | Transparent colorless spinel microcrystalline glass, and preparation and use thereof | |
| CN110577364A (en) | Lithium-aluminum silicate nanocrystalline glass ceramic and preparation method thereof | |
| CN110862233A (en) | High-hardness, high-strength and high-transparency microcrystalline glass and preparation method and application thereof | |
| CN115490428A (en) | Transparent glass ceramics with ultrahigh drop strength and preparation method thereof | |
| CN113735450A (en) | Transparent high-hardness magnesium-aluminum-silicon microcrystalline glass and preparation method thereof | |
| JP5212885B2 (en) | Crystallized glass powder and UV curable resin cured product | |
| CN115417601A (en) | Method for preparing microcrystalline glass | |
| CN112408803B (en) | Crystal toughened lithium-aluminum-silicate microcrystalline glass composite material and preparation method thereof | |
| CN115893848A (en) | Composition for preparing high-elasticity-modulus microcrystalline glass, preparation method of microcrystalline glass, microcrystalline glass and application of microcrystalline glass | |
| CN112174533B (en) | White high-aluminum microcrystalline glass and preparation method thereof | |
| CN116199426A (en) | High-strength glass composition, microcrystalline glass and preparation method thereof | |
| CN113831021A (en) | Microcrystalline glass, preparation method thereof, glass protective layer, glass cover plate and electronic device | |
| JP7317953B2 (en) | High modulus glass fiber composition, its glass fiber and composites | |
| CN115196876B (en) | Flexible ultrathin glass and preparation method and application thereof | |
| CN117228956B (en) | Microcrystalline glass containing yttrium zirconate nanocrystalline and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |