CN106587638A - Machinable glass ceramic and preparation method thereof - Google Patents
Machinable glass ceramic and preparation method thereof Download PDFInfo
- Publication number
- CN106587638A CN106587638A CN201611157554.8A CN201611157554A CN106587638A CN 106587638 A CN106587638 A CN 106587638A CN 201611157554 A CN201611157554 A CN 201611157554A CN 106587638 A CN106587638 A CN 106587638A
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- glass ceramics
- glass
- machined
- glass ceramic
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Classifications
-
- 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
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
Abstract
The invention provides a machinable glass ceramic and relates to the technical field of glass ceramics. The machinable glass ceramic is mainly composed of the following components in parts by weight: 30-58 parts of CaF2, 0.5-5 parts of SnO2, 1-3 parts of Li2O, 7-15 parts of Al2O3, 13-21 parts of MgO, 0.5-2.5 parts of TiO2, 8-12 parts of K2O, 0-5 parts of SrZrO3, 0-10 parts of BaO, 6-10 parts of SiO2, 3-7 parts of MoSi2, 0-10 parts of La2O3, 0-5 parts of Y2O3, 0-5 parts of Tm2O3 and 1-15 parts of H3BO4. Based on the volume, the glass ceramic is composed of 50-95% of a crystal phase and 5-50% of a glass phase, wherein the crystal phase of the glass ceramic is fluorine mica. The machinable glass ceramic provided by the invention has high service temperature and excellent dielectric property, and a film product has high flexibility and flanging quality.
Description
Technical field
The invention belongs to devitrified glass technical field, concretely relating to one kind can machined glass ceramics and its system
Preparation Method.
Background technology
Glass ceramics is the new ceramic material that 20 century 70s grow up, and it is by control vitreum crystallization
The polycrystalline ceramic of acquisition, it has glass, the advantage of ceramics concurrently, there is the unapproachable physical property of conventional material.With glass
Relatively, the mechanics of glass ceramics, decay resistance are greatly improved；Compared with traditional ceramics, the properity of glass ceramics is easy
Control, can carry out improve production efficiency with ripe process of glass.Therefore, glass ceramics is increasingly by the weight of people
Depending on, extensively application is obtained, the new ceramic material of 21 century is described as by expert.
The glass ceramics that can be machined is to grow up with the new of unusual combination property at the initial stage seventies
Material, by being machined into the size very various product of accurate and pattern, any process is not required to after processing just can be used.This
The composition of class material is all more complicated, particularly contains fluoride in its composition, has not been simple oxide, but oxide
With the mixture of halide, the principal crystalline phase of precipitation is the fluormica of layered silicate structure, is with pole the characteristics of its is maximum
Big pliability.Compared with other glass or material, surface defect is not very sensitive to the intensity of material, due to the two spies
Property, although its rupture strength is simultaneously not bery high, but its intensity can be enable to give full play to due effect.These materials can be
Paper, film, fiber, slab or coating.
The content of the invention
In view of this, the invention provides one kind can machined glass ceramics and preparation method thereof, made with providing to have
With temperature is high, dielectric properties are good, and film-form product have it is flexible and can folding endurance glass-ceramic.
To reach above-mentioned purpose, the technical solution used in the present invention is：
One kind can machined glass ceramics, be mainly made up of following parts by weight ingredient：CaF230～58 parts, SnO20.5～5
Part, Li21～3 part of O, Al2037～15 parts, 13～21 parts of Mg0, TiO20.5～2.5 part, K28～12 parts of O, SrZrO3 0
～5 parts, 0～10 part of BaO, SiO26～10 parts, MoSi23～7 parts, La2O30～10 part, Y2O30～5 part, Tm2O30～5
Part.
Preferably, in the preferred embodiment, by volume, the glass ceramics by 50～95% crystalline phase
Glass phase composition with 5～50%；The crystalline phase of the glass ceramics is fluormica.
Preferably, in the preferred embodiment, the glass ceramics includes La2O3、Y2O3、Tm2O3In extremely
Few one kind, and its summation for accounting for the glass ceramics weight is 0.5～5 part.
Preferably, in the preferred embodiment, the glass ceramics also contains 1～15 part of H3BO4.Boric acid plus
Enter, the fusing point of glass ceramics can be reduced.
In addition, the invention provides one kind can machined glass ceramic preparation, comprise the following steps：
(1) glass is founded：30～58 parts of CaF are weighed by weight2, 0.5～5 part of SnO2, 1～3 part of Li2O, 7～15 parts
Al203, 13～21 parts of Mg0,0.5～2.5 part of TiO2, 8～12 parts of K2O, 0～5 part of SrZrO3, 0～10 part of BaO, 6～10 parts
SiO2, 3～7 parts of MoSi2, 0～10 part of La2O3, 0～5 part of Y2O3, 0～5 part of Tm2O3With 1～15 part of H3BO4Raw material mixing,
In 1250～1450 DEG C of melting 1～1.5h of heating in high temperature furnace；
（2）In nitrogen protection, uniaxial pressure is under conditions of 5～10MPa, with the heating rate of 50～100 DEG C/min by temperature
Degree rises to 2050～2200 DEG C, is incubated 10～60min；
（3）Fused, homogenizing, clarification are come out of the stove after 2000～2100 DEG C, and the slurries after melting are cast on mould 20
Mould shaping under the conditions of～200MPa obtains base substrate；
（4）Then the base substrate is sent in muffle furnace, at 560～680 DEG C 0.5～1h is heat-treated, form nucleus；
（5）The muffle furnace is warming up to into 650～800 DEG C, 3～15min of temperature is maintained, crystal growth is made, room is subsequently cooled to
Temperature, obtaining can machined glass ceramics.
Beneficial effects of the present invention：The present invention provide can machined glass ceramics have using temperature is high, dielectricity
Can be good, and film-form product have it is flexible and can folding endurance.The present invention adopts CaF2、Al203, the raw material such as Mg0 be major ingredient, MoSi2、
La2O3 、Y2O3、SnO2、SrZrO3Be auxiliary material Deng raw material, major ingredient mutually acts synergistically with auxiliary material, make obtained glass ceramics with it is general
Logical glass is compared, not only good with heat resistance, good thermal shock, strong shock resistance, and thermal coefficient of expansion can be in extensive model
Interior change is enclosed, also has the advantages that electrical characteristic, the durability of chemistry and mechanical strength can be improved.The glass ceramics by 50～
95% crystalline phase and 5～50% glass phase composition, the principal crystalline phase of precipitation is the fluormica of layered silicate structure, and it is maximum
The characteristics of be with great pliability.
Specific embodiment
Technical scheme of the present invention is further described with reference to specific embodiment.
Embodiment 1：
Embodiments of the invention 1 provide one kind can machined glass ceramics, be mainly made up of following parts by weight ingredient：CaF2
30 parts, SnO20.5 part, Li21 part of O, Al2037 parts, 13 parts of Mg0, TiO20.5 part, K28 parts of O, SiO26 parts, MoSi2 3
Part, H3BO41 part, La2O30.5 part, Y2O31 part.
By volume, crystalline phase and 50% glass phase composition of the glass ceramics by 50%；The crystalline phase of glass ceramics is fluorine
Mica.
Present embodiments provide one kind can machined glass ceramic preparation, comprise the following steps：
(1) glass is founded：30 parts of CaF are weighed by weight2, 0.5 part of SnO2, 1 part of Li2O, 7 parts of Al203, 13 parts of Mg0,
0.5 part of TiO2, 8 parts of K2O, 6 parts of SiO2, 3 parts of MoSi2, 0.5 part of La2O3, 1 part of Y2O3With 1 part of H3BO4Raw material mixing, in high temperature
In 1250 DEG C of melting heating 1h in stove；
（2）In nitrogen protection, uniaxial pressure is under conditions of 5MPa, temperature to be risen to into 2050 with the heating rate of 50 DEG C/min
DEG C, it is incubated 10min；
（3）Fused, homogenizing, clarification are come out of the stove after 1800 DEG C, the slurries after melting are cast on mould, in 20MPa bars
Part lower film is molded to obtain base substrate；
（4）Then base substrate is sent in muffle furnace, at 560 DEG C 0.5h is heat-treated, form nucleus；
（5）Muffle furnace is warming up to into 650 DEG C, temperature 3min is maintained, crystal growth is made, room temperature is subsequently cooled to, obtaining can machinery
Processing glass ceramics.
Embodiment 2：
Embodiments of the invention 2 provide one kind can machined glass ceramics, be mainly made up of following parts by weight ingredient：CaF2
58 parts, SnO25 parts, Li23 parts of O, Al20315 parts, 21 parts of Mg0, TiO22.5 parts, K212 parts of O, SrZrO35 parts, BaO
10 parts, SiO210 parts, MoSi27 parts, H3BO415 parts, La2O31 part, Y2O32 parts, Tm2O32 parts.
By volume, crystalline phase and 45% glass phase composition of the glass ceramics by 55%；The crystalline phase of glass ceramics is fluorine
Mica.
Present embodiments provide one kind can machined glass ceramic preparation, comprise the following steps：
(1) glass is founded：58 parts of CaF are weighed by weight2, 5 parts of SnO2, 3 parts of Li2O, 15 parts of Al203, 21 parts of Mg0,2.5
Part TiO2, 12 parts of K2O, 5 parts of SrZrO3, 10 parts of BaO, 10 parts of SiO2, 7 parts of MoSi2, 1 part of La2O3, 2 parts of Y2O3, 2 parts of Tm2O3With 15
Part H3BO4Raw material mixing, in high temperature furnace in 1450 DEG C melting heating 1.5h；
（2）In nitrogen protection, uniaxial pressure is under conditions of 10MPa, temperature to be risen to into 2100 with the heating rate of 100 DEG C/min
DEG C, it is incubated 60min；
（3）Fused, homogenizing, clarification are come out of the stove after 1900 DEG C, the slurries after melting are cast on mould, in 200MPa bars
Part lower film is molded to obtain base substrate；
（4）Then base substrate is sent in muffle furnace, at 680 DEG C 1h is heat-treated, form nucleus；
（5）Muffle furnace is warming up to into 800 DEG C, temperature 15min is maintained, crystal growth is made, room temperature is subsequently cooled to, obtaining can machine
Tool processes glass ceramics.
Embodiment 3：
Embodiments of the invention 3 provide one kind can machined glass ceramics, be mainly made up of following parts by weight ingredient：CaF2
44 parts, SnO22.7 parts, Li22 parts of O, Al20311 parts, 17 parts of Mg0, TiO21.5 parts, K210 parts of O, SrZrO32.5 parts,
5 parts of BaO, SiO28 parts, MoSi25 parts, H3BO48 parts, Y2O31 part, Tm2O31.5 part.
By volume, crystalline phase and 25% glass phase composition of the glass ceramics by 75%；The crystalline phase of glass ceramics is fluorine
Mica.
Present embodiments provide one kind can machined glass ceramic preparation, comprise the following steps：
(1) glass is founded：44 parts of CaF are weighed by weight2, 2.7 parts of SnO2, 2 parts of Li2O, 11 parts of Al203, 17 parts of Mg0,
1.5 parts of TiO2, 10 parts of K2O, 2.5 parts of SrZrO3, 5 parts of BaO, 8 parts of SiO2, 5 parts of MoSi2, 1 part of Y2O3, 1.5 parts of Tm2O3With 8 parts
H3BO4Raw material mixing, in high temperature furnace in 1350 DEG C melting heating 1.2h；
（2）In nitrogen protection, uniaxial pressure is under conditions of 7MPa, temperature to be risen to into 2200 with the heating rate of 70 DEG C/min
DEG C, it is incubated 30min；
（3）Fused, homogenizing, clarification are come out of the stove after 2000 DEG C, the slurries after melting are cast on mould, in 110MPa bars
Part lower film is molded to obtain base substrate；
（4）Then base substrate is sent in muffle furnace, at 620 DEG C 0.7h is heat-treated, form nucleus；
（5）Muffle furnace is warming up to into 750 DEG C, temperature 9min is maintained, crystal growth is made, room temperature is subsequently cooled to, obtaining can machinery
Processing glass ceramics.
To obtained by embodiment 1～3 can machined glass ceramics performance detect, the test result such as institute of table 1
Show.
Table 1：Test result
Embodiment 1～3 provide can 25 DEG C of machined glass ceramics, dielectric constant is 6～7,25～300 DEG C of heat during 1KHz
The coefficient of expansion is 90～110 × 10-7/ DEG C, mechanical strength is more than 100MPa.
Claims (5)
1. one kind can machined glass ceramics, it is characterised in that：Mainly it is made up of following parts by weight ingredient：CaF230～58
Part, SnO20.5～5 part, Li21～3 part of O, Al2037～15 parts, 13～21 parts of Mg0, TiO20.5～2.5 part, K2O 8～
12 parts, SrZrO30～5 part, 0～10 part of BaO, SiO26～10 parts, MoSi23～7 parts, La2O30～10 part, Y2O30～
5 parts, Tm2O30～5 part.
2. it is according to claim 1 can machined glass ceramics, it is characterised in that：By volume, the glass ceramics
Crystalline phase and 5～50% glass phase composition by 50～95%；The crystalline phase of the glass ceramics is fluormica.
3. it is according to claim 1 can machined glass ceramics, it is characterised in that：The glass ceramics includes La2O3、
Y2O3、Tm2O3In at least one, and its account for the glass ceramics weight summation be 0.5～5 part.
4. it is according to claim 1 can machined glass ceramics, it is characterised in that：The glass ceramics also containing 1～
15 parts of H3BO4。
5. it is a kind of as described in claim 1-4 can machined glass ceramic preparation, it is characterised in that including following step
Suddenly：
(1) glass is founded：30～58 parts of CaF are weighed by weight2, 0.5～5 part of SnO2, 1～3 part of Li2O, 7～15 parts
Al203, 13～21 parts of Mg0,0.5～2.5 part of TiO2, 8～12 parts of K2O, 0～5 part of SrZrO3, 0～10 part of BaO, 6～10 parts
SiO2, 3～7 parts of MoSi2, 0～10 part of La2O3, 0～5 part of Y2O3, 0～5 part of Tm2O3With 1～15 part of H3BO4Raw material mixing,
In 1250～1450 DEG C of melting 1～1.5h of heating in high temperature furnace；
（2）In nitrogen protection, uniaxial pressure is under conditions of 5～10MPa, with the heating rate of 50～100 DEG C/min by temperature
Degree rises to 2050～2200 DEG C, is incubated 10～60min；
（3）Fused, homogenizing, clarification are come out of the stove after 1800～2000 DEG C, and the slurries after melting are cast on mould 20
Mould shaping under the conditions of～200MPa obtains base substrate；
（4）Then the base substrate is sent in muffle furnace, at 560～680 DEG C 0.5～1h is heat-treated, form nucleus；
（5）The muffle furnace is warming up to into 650～800 DEG C, 3～15min of temperature is maintained, crystal growth is made, room is subsequently cooled to
Temperature, obtaining can machined glass ceramics.
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| CN201611157554.8A CN106587638A (en) | 2016-12-15 | 2016-12-15 | Machinable glass ceramic and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611157554.8A CN106587638A (en) | 2016-12-15 | 2016-12-15 | Machinable glass ceramic and preparation method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0664937A (en) * | 1992-08-19 | 1994-03-08 | Mitsui Mining Co Ltd | Production of sintered glass ceramic |
| US20020157570A1 (en) * | 1999-03-19 | 2002-10-31 | Dmitri Brodkin | Machinable glass-ceramics |
| US20080254964A1 (en) * | 2005-06-23 | 2008-10-16 | Toto Ltd. | Machineable glass ceramic and manufacturing method thereof |
| CN102046550A (en) * | 2008-05-01 | 2011-05-04 | 康宁股份有限公司 | Colored machinable glass-ceramics |
| CN103708729A (en) * | 2013-12-17 | 2014-04-09 | 朱晓明 | Glass ceramic easy to cut and preparation method of glass ceramic |
| CN104692666A (en) * | 2013-12-04 | 2015-06-10 | 大连市西岗区众源生办公设备商行 | Ceramic glass for manufacturing USB (universal serial bus) heating cup |
| CN105936588A (en) * | 2015-02-28 | 2016-09-14 | 肖特玻璃科技(苏州)有限公司 | Glass ceramics capable of being mechanically processed and chemically tempered |
-
2016
- 2016-12-15 CN CN201611157554.8A patent/CN106587638A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0664937A (en) * | 1992-08-19 | 1994-03-08 | Mitsui Mining Co Ltd | Production of sintered glass ceramic |
| US20020157570A1 (en) * | 1999-03-19 | 2002-10-31 | Dmitri Brodkin | Machinable glass-ceramics |
| US20080254964A1 (en) * | 2005-06-23 | 2008-10-16 | Toto Ltd. | Machineable glass ceramic and manufacturing method thereof |
| CN102046550A (en) * | 2008-05-01 | 2011-05-04 | 康宁股份有限公司 | Colored machinable glass-ceramics |
| CN104692666A (en) * | 2013-12-04 | 2015-06-10 | 大连市西岗区众源生办公设备商行 | Ceramic glass for manufacturing USB (universal serial bus) heating cup |
| CN103708729A (en) * | 2013-12-17 | 2014-04-09 | 朱晓明 | Glass ceramic easy to cut and preparation method of glass ceramic |
| CN105936588A (en) * | 2015-02-28 | 2016-09-14 | 肖特玻璃科技(苏州)有限公司 | Glass ceramics capable of being mechanically processed and chemically tempered |
Non-Patent Citations (1)
| Title |
|---|
| 西北轻工业学院主编: "《玻璃工艺学》", 31 August 2007, 北京：中国轻工业出版社 * |
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Application publication date: 20170426 |