Method for densifying a preformed porous body of a material the

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

1985-11-04

1988-03-01

Bashore, S. Leon

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 33, 65103, 65111, C03B 2320, C03B 2100, C03B 1100, C03C 1000

Patent

active

047283513

ABSTRACT:
Porous bodies of a material which comprises SiO.sub.2 as the main constituent are heated by passing a zone of high temperature through the body. The zone of high temperature is obtained by irradiation with light of a wavelength which is absorbed by the porous part of the body but is not absorbed by the densified part of the body (.lambda.<3 .mu.m). The device preferably comprises a rotatable radiation source (2) surrounding the body (6) to be densified.

REFERENCES:
patent: 4126436 (1978-11-01), Bailey
patent: 4477274 (1984-10-01), Janssen et al.
patent: 4547644 (1985-10-01), Bair et al.
patent: 4617041 (1986-10-01), Meerman
R. Susa et al., "New Optical Fibre Fabrication Method", Electronics Letters, 6/10/82, vol. 18, No. 12, pp. 499-500.

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