Lead gallate glasses

Details Lead gallate glasses Lead gallate glasses

1983-03-21

1984-11-20

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 22, 501 30, 501 42, 501 43, 501 74, 501901, 501904, C03C 312

Patent

active

044839316

ABSTRACT:
This invention is directed to the preparation of glasses in the PbO--Ga.sub.2 O.sub.3 field exhibiting good infrared transmitting characteristics out to wavelengths of 8 microns. The binary glasses consist essentially, by weight, of about 15-28% Ga.sub.2 O.sub.3 and 72-85% PbO. However, the preferred glasses contain up to 85% Bi.sub.2 O.sub.3 and consist essentially as included within the area generally encompassed by the curve in FIG. 2.

REFERENCES:
patent: 2853393 (1958-09-01), Beck
patent: 3188216 (1965-06-01), Burton et al.
patent: 3507646 (1970-04-01), Wood et al.
patent: 3531271 (1970-09-01), Dumbaugh
patent: 3607388 (1971-09-01), Hori et al.
patent: 3723141 (1973-03-01), Dumbaugh
patent: 3837868 (1974-09-01), Berleue et al.
patent: 3947089 (1976-03-01), Rapp
patent: 4407061 (1983-10-01), Grodkiewicz et al.
Kantor, P. et al., "Preparation of Iron Sesquioxide Glasses by Ultra-Fast Quenching from the Melt", J. Mat. Sci. 8 (1973), pp. 1359-1361.

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