METHOD FOR MOLDING SILICA GLASS CONTAINING TiO2

PROBLEM TO BE SOLVED: To provide a method for molding silica glass containing TiO2, in which such a problem as Ti2O3(III) caused by the use of a graphite-made molding vessel or entrainment of bubbles is solved. SOLUTION: The method for molding silica glass containing TiO2comprises: a step of disposi...

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Hauptverfasser: KOIKE AKIO, KAWAGISHI MASAHIRO, MITSUMORI TAKAHIRO, IWAHASHI KOSHIN
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a method for molding silica glass containing TiO2, in which such a problem as Ti2O3(III) caused by the use of a graphite-made molding vessel or entrainment of bubbles is solved. SOLUTION: The method for molding silica glass containing TiO2comprises: a step of disposing the silica glass containing TiO2in the molding vessel; and a molding step of molding the silica glass containing TiO2in the molding vessel in an inactive atmosphere at ≥1,500°C. A molding having a desired shape is obtained by performing the molding step two times or more. After the molding step is performed and before the next molding step is performed, a grinding step of grinding at least one surface of the silica glass containing TiO2is performed at least once. COPYRIGHT: (C)2011,JPO&INPIT