JPS5617940A - Manufacture of porous glass - Google Patents
Manufacture of porous glassInfo
- Publication number
- JPS5617940A JPS5617940A JP9465479A JP9465479A JPS5617940A JP S5617940 A JPS5617940 A JP S5617940A JP 9465479 A JP9465479 A JP 9465479A JP 9465479 A JP9465479 A JP 9465479A JP S5617940 A JPS5617940 A JP S5617940A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- glass
- acid
- contg
- inner surfaces
- 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
- 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
- C03C23/00—Other surface treatment of glass not in the form of fibres or filaments
- C03C23/0095—Solution impregnating; Solution doping; Molecular stuffing, e.g. of porous glass
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 Melting And Manufacturing (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Surface Treatment Of Glass (AREA)
- Glass Compositions (AREA)
Abstract
PURPOSE:To manufacture high quality porous glass with a small transmission loss by eluting phase separated glass with acid and eluting the inner surfaces of the resulting pores with a weakly alkaline soln. or an F<->-contg. soln. prior to collapsing. CONSTITUTION:The soft phase of phase separated glass is eluted with acid, and the glass is washed with an aqueous weak alkali soln. such as 0.1 NNa2CO3 or an F<->-contg. soln., washed with pure water prior to acid washing, and repeatedly washed with acid and an aqueous weak alkali soln. or an F<->-contg. soln. As a result, colloidal silica on the inner surfaces of the resulting pores are eluted together with the residual isolated soft phase on the surfaces. The glass is then dehydrated, degassed, and collapsed under an inert gas atmosphere or the like to obtain porous glass. CsNO3 or the like may be deposited on the inner surfaces of the pores prior to the dehydration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9465479A JPS5617940A (en) | 1979-07-24 | 1979-07-24 | Manufacture of porous glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9465479A JPS5617940A (en) | 1979-07-24 | 1979-07-24 | Manufacture of porous glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5617940A true JPS5617940A (en) | 1981-02-20 |
Family
ID=14116233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9465479A Pending JPS5617940A (en) | 1979-07-24 | 1979-07-24 | Manufacture of porous glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5617940A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4710216A (en) * | 1982-04-19 | 1987-12-01 | Fuji Photo Optical Co., Ltd. | Method of making flexible optical fiber bundle |
-
1979
- 1979-07-24 JP JP9465479A patent/JPS5617940A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4710216A (en) * | 1982-04-19 | 1987-12-01 | Fuji Photo Optical Co., Ltd. | Method of making flexible optical fiber bundle |
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