GB806837A - Glass compositions - Google Patents
Glass compositionsInfo
- Publication number
- GB806837A GB806837A GB1133456A GB1133456A GB806837A GB 806837 A GB806837 A GB 806837A GB 1133456 A GB1133456 A GB 1133456A GB 1133456 A GB1133456 A GB 1133456A GB 806837 A GB806837 A GB 806837A
- Authority
- GB
- United Kingdom
- Prior art keywords
- per cent
- glass
- april
- weight
- gallium oxide
- 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
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
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
-
- 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
- C03C3/00—Glass compositions
- C03C3/12—Silica-free oxide glass compositions
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
806,837. Glass. BRITISH THOMSONHOUSTON CO. Ltd. April 16, 1957 [April 13, 1956], No. 11334/56. Class 56. Glass for transmitting infra-red radiation consists substantially wholly of calcium and gallium oxides, with the gallium oxide being between 59 and 69 per cent. weight of the total, but up to 8 per cent. of the gallium oxide can be replaced by silica. A particular example which is transparent and pale yellow is made from a batch composition, by weight, CaO 33À2; Ga 2 O 3 59À8; Si O2 7À0. This melts at 1400‹C, and anneals at 700‹C. A sample 4 mm. thick transmits 60-70 per cent. of incident radiation between 3À4 and 4À6 micron. Its refractive index is approximately 1À7.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1133456A GB806837A (en) | 1956-04-13 | 1956-04-13 | Glass compositions |
FR1171125D FR1171125A (en) | 1956-04-13 | 1957-04-11 | Improvements to transparent infrared glasses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1133456A GB806837A (en) | 1956-04-13 | 1956-04-13 | Glass compositions |
Publications (1)
Publication Number | Publication Date |
---|---|
GB806837A true GB806837A (en) | 1958-12-31 |
Family
ID=9984339
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1133456A Expired GB806837A (en) | 1956-04-13 | 1956-04-13 | Glass compositions |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1171125A (en) |
GB (1) | GB806837A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4942144A (en) * | 1989-01-23 | 1990-07-17 | Iowa State University Research Foundation, Inc. | Infrared transmitting glasses with high glass transition temperatures |
-
1956
- 1956-04-13 GB GB1133456A patent/GB806837A/en not_active Expired
-
1957
- 1957-04-11 FR FR1171125D patent/FR1171125A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4942144A (en) * | 1989-01-23 | 1990-07-17 | Iowa State University Research Foundation, Inc. | Infrared transmitting glasses with high glass transition temperatures |
Also Published As
Publication number | Publication date |
---|---|
FR1171125A (en) | 1959-01-22 |
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