Method of densifying a preformed porous body of a material the m

Details Method of densifying a preformed porous body of a material the m Method of densifying a preformed porous body of a material the m

1986-11-21

1989-08-15

Kellogg, Arthur

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 2, 65 181, 65144, C03B 2320

Patent

active

048570923

ABSTRACT:
Porous bodies of a material comprising SiO.sub.2 as the main constituent are heated by passing a zone of high temperature through the body. This high temperature zone is obtained by irradiation with light of a wavelength which is obsorbed by the porous part of the body, but which is not absorbed by the densified part of the body. The device preferaby comprises a rotatable radiation source surrounding the body to be densified.

REFERENCES:
patent: 4378985 (1983-04-01), Powers
patent: 4450333 (1984-05-01), Andrejco et al.
patent: 4514205 (1985-04-01), Darcangelo et al.
patent: 4552576 (1985-11-01), Hara et al.
patent: 4578098 (1986-03-01), Paek et al.
patent: 4617041 (1986-10-01), Meerman
"New Optical Fibre Fabrication Method" by K. Susa et al., Electronics Letters, vol. 18, No. 12, Jun. 10, 1982, pp. 499-500.

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