Continuous process for producing long .alpha.-alumina fibers

Details Continuous process for producing long .alpha.-alumina fibers Continuous process for producing long .alpha.-alumina fibers

1987-09-04

1989-03-14

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 66, 264DIG19, C04B 3332

Patent

active

048122718

ABSTRACT:
Disclosed is a process for continuously producing highly flexible long .alpha.-alumina fibers of small diameter according to the slurry spinning technique. Also disclosed are a specific spinnable slurry containing an alumina powder having an average particles diameter of 0.1 .mu.m or less, the specific thermophysical conditions under which the slurry is spun into a multifilament yarn, and the well-balanced residence time conditions under which the multifilament yarn running as a single continuous fiber is prefired and fired to form a long .alpha.-alumina fiber.

REFERENCES:
patent: 3808015 (1974-04-01), Seufert
patent: 3953561 (1976-04-01), Shin

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