Yellow high silica glass

Details Yellow high silica glass Yellow high silica glass

1993-06-28

1994-04-05

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 32, C03C 306, C03C 110

Patent

active

053004663

ABSTRACT:
A yellow color by transmitted light is produced in a high silica glass by impregnating a porous, high silica glass with a solution of chromium and zinc salts and consolidating the glass under oxidizing conditions to dope the glass with chromium and zinc oxides, the chromium being predominantly in the hexavalent state. Optionally, an aluminum salt is included in the impregnating solution. The glass has particular utility as a filter for lighting purposes.

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patent: 2303756 (1942-12-01), Nordberg et al.
patent: 2340013 (1944-01-01), Nordberg et al.
patent: 2355746 (1944-08-01), Nordberg et al.
patent: 2612726 (1952-10-01), Nordberg
patent: 2779688 (1957-01-01), Nordberg
patent: 2965503 (1960-12-01), Hagedorn
patent: 3188217 (1962-10-01), Elmer et al.
patent: 3188218 (1962-10-01), Elmer et al.
patent: 3258631 (1963-01-01), Elmer et al.
patent: 4073579 (1978-02-01), Deeg et al.

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