Borosilicate glasses and second surface mirrors thereof

Details Borosilicate glasses and second surface mirrors thereof Borosilicate glasses and second surface mirrors thereof

1996-12-05

1999-04-20

Speer, Timothy M.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

428426, 428432, 428434, 501 65, 501 66, 136256, B32R 1700

Patent

active

058957197

ABSTRACT:
Radiation stable glass for space applications, especially glass in the form of thin sheet for cladding of spacecraft, is produced by including at least 5% by weight of barium oxide in a borosilicate glass composition. Because barium has a low absorption in the ultra violet, its use enables radiation stable glasses of low ultra violet absorption to be produced, alleviating problems of overheating when the glasses are used for cladding space craft. The glass is useful in the production of solar cell cover slips and second surface mirrors for cladding purposes, and space applications generally.

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