Process for the production of glass

Details Process for the production of glass Process for the production of glass

1988-10-17

1989-10-03

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 53, 65 321, 65 322, 65 323, 65 324, 65DIG8, 65DIG16, 65 181, 65 301, C03C 306, C03C 304

Patent

active

048716952

ABSTRACT:
A process for the production of a glass by the vacuum melting method using silica as a raw material is disclosed, comprising filing a silica fine powder in a suitable vessel, heating it in the presence of an accelerator for phase conversion to obtain a porous formed body consisting of a cristobalite phase, and then heating and melting the formed body in vacuo. According to the present invention, a transparent and active glass having a high quality can be produced at an inexpensive cost.

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patent: 4146379 (1979-03-01), Copley et al.
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patent: 4429009 (1984-01-01), Pastor et al.
patent: 4465656 (1984-08-01), Pastor et al.
Rabinovich et al., "Preparation of High-Silica Glasses from Colloidal Gels: I, Preparation for Sintering and Properties of Sintered Glasses", Journal of the American Ceramic Society, vol. 66, No. 10, Oct. 1983, pp. 683-688.
Boganov et al., "Threshold of Light Breakdown in Hydroxyl-Free High-Purity Vitreous Silica", Soviet Journal of Glass Physics and Chemistry, vol. 6, No. 5, Sept./Oct. 1980, pp. 383-390, (English language translation by Plenum Publishing Corporation).

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