Increasing the retention of Ge0.sub.2 during production of glass

Glass manufacturing – Processes – With shaping of particulate material and subsequent fusing...

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65 173, 65 175, 65 176, C03B 1901

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active

056413335

ABSTRACT:
A method for forming a GeO.sub.2 -doped SiO.sub.2 glass article by depositing glass particles to form a porous preform and then drying and sintering the porous preform. A precursor of SnO.sub.2 is also present in the reactant stream used to form the particles, whereby the reaction produces particles of glass that contain GeO.sub.2, SiO.sub.2 and SnO.sub.2. The presence of SnO.sub.2 in the particles reduces the reaction of GeO.sub.2 with chlorine to form GeCl.sub.4 during the drying step. The GeCl.sub.4 that would have formed would have either escaped from the porous preform or caused GeO.sub.2 to be re-deposited in an undesirable portion of the preform. The retention of GeO.sub.2 in the article is therefore enhanced.

REFERENCES:
patent: 3868170 (1975-02-01), DeLuca
patent: 3933454 (1976-01-01), DeLuca
patent: 4125388 (1978-11-01), Powers
patent: 4165223 (1979-08-01), Powers
patent: 4263031 (1981-04-01), Schultz
patent: 4664690 (1987-05-01), Kyoto et al.
patent: 4675038 (1987-06-01), Ainslie et al.
patent: 4822399 (1989-04-01), Kanamori et al.

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