Method for forming fused quartz using deuterium

Details Method for forming fused quartz using deuterium Method for forming fused quartz using deuterium

2008-04-29

2008-04-29

Lopez, Carlos (Department: 1791)

Glass manufacturing

Processes

Operating under inert or reducing conditions

C065S086000, C065S404000

Reexamination Certificate

active

07363776

ABSTRACT:
A silica deposition tube is fused in a deuterium (D2) gas atmosphere and optionally baked in a deuterium (D2) gas atmosphere to substantially reduce the hydrogen content in the tube for decreased fiber attenuation. Alternatively, raw silica material is pre-treated in D2gas followed by fusing of the raw silica tube in a D2gas environment.

REFERENCES:
patent: 4515612 (1985-05-01), Burrus et al.
patent: 6799440 (2004-10-01), Zeng et al.

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