Process for manufacturing ceramic fibers consisting mainly of al

Details Process for manufacturing ceramic fibers consisting mainly of al Process for manufacturing ceramic fibers consisting mainly of al

1984-06-04

1985-04-16

Williams, Howard S.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 68, 501 73, 501 95, 264332, 264DIG19, C03C 1300

Patent

active

045116644

ABSTRACT:
A mixture containing 35 to 65% by weight of Al.sub.2 O.sub.3, 30 to 60% by weight of SiO.sub.2, 1.5 to 4% by weight of Cr.sub.2 O.sub.3, and 0.01 to 0.1% by weight of carbon, the balance being unavoidable impurities, is melted, and amorphous fibers are formed from said molten material by blowing or spinning. The fibers are heated rapidly to a temperature of 950.degree. C. to 1,150.degree. C., held at that temperature for several to about a dozen minutes, and cooled rapidly to ordinary room temperature.

REFERENCES:
patent: 3449137 (1969-06-01), Ekdahl

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