GB940706A - A crystalline or vitreous-crystalline devitrified glass having a negative or very low and positive thermal expansion coefficient - Google Patents
A crystalline or vitreous-crystalline devitrified glass having a negative or very low and positive thermal expansion coefficientInfo
- Publication number
- GB940706A GB940706A GB1119961A GB1119961A GB940706A GB 940706 A GB940706 A GB 940706A GB 1119961 A GB1119961 A GB 1119961A GB 1119961 A GB1119961 A GB 1119961A GB 940706 A GB940706 A GB 940706A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystalline
- negative
- low
- thermal expansion
- vitreous
- 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.)
- Expired
Links
- 239000011521 glass Substances 0.000 title abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 238000004031 devitrification Methods 0.000 abstract 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 1
- 229910000174 eucryptite Inorganic materials 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
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
- C03C10/0018—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 SiO2, Al2O3 and monovalent metal oxide as main constituents
- C03C10/0027—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 SiO2, Al2O3 and monovalent metal oxide as main constituents containing SiO2, Al2O3, Li2O as main constituents
Landscapes
- 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
A ceramic glass material has a coefficient of thermal expansion which is either negative or very low and positive and consists predominantly, in a proportion of at least 50% by weight, of beta-eucryptite as devitrification product. Examples of suitable compositions of SiO2, Al2O3 and Li2O are given, which include also TiO2 and MgO. TiO2 can be present up to 10% and MgO up to 8%. B2O3 may also be present up to 8%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DES0067757 | 1960-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB940706A true GB940706A (en) | 1963-10-30 |
Family
ID=7499782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1119961A Expired GB940706A (en) | 1960-03-26 | 1961-03-27 | A crystalline or vitreous-crystalline devitrified glass having a negative or very low and positive thermal expansion coefficient |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1421927A1 (en) |
| GB (1) | GB940706A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3279931A (en) * | 1963-02-13 | 1966-10-18 | Corning Glass Works | Glass-ceramic body and method of making it |
| EP0880718A2 (en) * | 1996-01-16 | 1998-12-02 | Corning Incorporated | Athermal optical device |
| US6209352B1 (en) | 1997-01-16 | 2001-04-03 | Corning Incorporated | Methods of making negative thermal expansion glass-ceramic and articles made thereby |
| US6455451B1 (en) | 1998-12-11 | 2002-09-24 | Jeneric/Pentron, Inc. | Pressable lithium disilicate glass ceramics |
| US6490394B1 (en) | 1996-01-16 | 2002-12-03 | Corning Incorporated | Athermal optical device |
| US6802894B2 (en) | 1998-12-11 | 2004-10-12 | Jeneric/Pentron Incorporated | Lithium disilicate glass-ceramics |
| US7254297B1 (en) | 1996-01-16 | 2007-08-07 | Corning Incorporated | Athermal optical devices employing negative expansion substrates |
-
1960
- 1960-03-26 DE DE19601421927 patent/DE1421927A1/en active Pending
-
1961
- 1961-03-27 GB GB1119961A patent/GB940706A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3279931A (en) * | 1963-02-13 | 1966-10-18 | Corning Glass Works | Glass-ceramic body and method of making it |
| EP0880718A2 (en) * | 1996-01-16 | 1998-12-02 | Corning Incorporated | Athermal optical device |
| EP0880718A4 (en) * | 1996-01-16 | 1999-09-22 | Corning Inc | Athermal optical device |
| US6490394B1 (en) | 1996-01-16 | 2002-12-03 | Corning Incorporated | Athermal optical device |
| US7254297B1 (en) | 1996-01-16 | 2007-08-07 | Corning Incorporated | Athermal optical devices employing negative expansion substrates |
| US6209352B1 (en) | 1997-01-16 | 2001-04-03 | Corning Incorporated | Methods of making negative thermal expansion glass-ceramic and articles made thereby |
| US6455451B1 (en) | 1998-12-11 | 2002-09-24 | Jeneric/Pentron, Inc. | Pressable lithium disilicate glass ceramics |
| US6802894B2 (en) | 1998-12-11 | 2004-10-12 | Jeneric/Pentron Incorporated | Lithium disilicate glass-ceramics |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1421927A1 (en) | 1968-12-12 |
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