Preparation of fluoride glass by chemical vapor deposition

Details Preparation of fluoride glass by chemical vapor deposition Preparation of fluoride glass by chemical vapor deposition

1990-02-23

1991-12-03

Schor, Kenneth M.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 607, 65DIG16, 423489, 4272553, C03B 37016

Patent

active

050697013

ABSTRACT:
A fluoride glass is prepared by depositing a solid including a metal fluoride on a heated substrate, from a gaseous mixture of a nonmetallo-organic compound, carbon dioxide, and a source of carbonyl fluoride. The nonmetallo-organic compound contains the metallic cation of the metal fluoride bonded to an organic species through an electronegative element such as oxygen, but not directly to a carbon atom. The carbon dioxide, or optionally another species reactive with carbon to produce a gas, oxidizes solid carbon and other reduction products of the organic compound that could otherwise be present in the deposited metal fluoride to impair optical properties of the fluoride glass. The carbonyl fluoride, supplied by the gas itself or by reactants that produce the gas, reacts with the nonmetallo-organic compound without producing water, which would otherwise degrade the glass purity.

REFERENCES:
patent: 4040807 (1977-08-01), Midwinter
patent: 4092466 (1978-05-01), Fletcher et al.
patent: 4162908 (1979-07-01), Rau et al.
patent: 4263030 (1981-04-01), Kobayashi et al.
patent: 4264347 (1981-04-01), Shintani et al.
patent: 4378987 (1983-04-01), Miller et al.
patent: 4493721 (1985-01-01), Auwerda et al.
patent: 4501602 (1985-02-01), Miller et al.
patent: 4645524 (1987-02-01), Bocko et al.
patent: 4708726 (1987-11-01), Miller et al.
patent: 4718929 (1988-01-01), Power et al.
patent: 4752454 (1988-06-01), Pastor et al.

Affiliated with

Also associated with

Rating

Preparation of fluoride glass by chemical vapor deposition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preparation of fluoride glass by chemical vapor deposition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preparation of fluoride glass by chemical vapor deposition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1694679