Low expansion, multiband transmitting glasses and glass-ceramics

Details Low expansion, multiband transmitting glasses and glass-ceramics Low expansion, multiband transmitting glasses and glass-ceramics

1982-03-16

1986-03-11

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

250338, 501 42, 501 73, 501904, C03C 3062, C03C 3253, C03C 410, C03C 1002

Patent

active

045754934

ABSTRACT:
Compositions of metal oxides which may be melted and cooled to produce glasses are disclosed. The glasses may be heat treated to produce glass-ceramics. The glasses have good transmittances for electromagnetic radiation in the ultraviolet, infrared and visible spectra, while the glass-ceramics have good transmittances of infrared radiation. Other physical properties make these materials desirable for purposes such as radomes.

REFERENCES:
patent: 2920971 (1960-01-01), Stookey
patent: 3573939 (1971-04-01), Beall
patent: 3745032 (1973-07-01), Miller et al.
patent: 3769047 (1973-10-01), Dumbaugh
patent: 3982952 (1976-09-01), Dumbaugh

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