Method of producing a glass body

Details Method of producing a glass body Method of producing a glass body

1990-01-16

1994-01-18

Kratz, Peter

Glass manufacturing

Processes

Forming product or preform from molten glass

65 311, 65 181, 65 182, 65 215, C03B 3716, C01B 3318

Patent

active

052796337

ABSTRACT:
A convenient method of producing porous silica particles is disclosed. The particles produced by the method can have impurity levels in the parts-per-billion range, and can have substantially uniform size. The particles are advantageously used to produce silica-containing glass bodies such as optical fiber preforms, silica tubes, lenses, rods and the like. The method comprises forming a silica-containing sol in comminution device or forming such a sol and introducing it into a comminution device, causing a gel to form from the sol, and comminuting the gel in the comminution device such that substantially dry, porous particles result.

REFERENCES:
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patent: 4812153 (1989-03-01), Andrejco et al.
patent: 4872895 (1989-10-01), Fleming et al.
"Better Ceramics Through Chemistry", Materials Research Society Symposia Proc., vol. 32, Uhlmann et al., Feb. 1984, pp. 59-70.
Treatise on Materials Science and Technology, vol. 22, Academic Press, Sumio Sakka, 1982, pp. 129-167.
"Soluble Silicates", ACS Symposium Series, American Chemical Society, Klein et al., Aug. 26-27, pp. 294-304.
"A Novel High-Rate Fabrication Process for Optical Fiber Preforms":, Fourth International Conference on Integrated Optics and Optical Fiber Communication, Technical Digest, Sudo et al., Jun. 27-30, 1983.

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