Crystalline ceramic fiber and method of manufacturing same

Details Crystalline ceramic fiber and method of manufacturing same Crystalline ceramic fiber and method of manufacturing same

1994-04-07

1996-02-27

Bonner, C. Melissa

Compositions: ceramic

Ceramic compositions

Refractory

501 97, C04B 3558

Patent

active

054948657

ABSTRACT:
A crystalline ceramic fiber suitable for reinforcing a formed ceramic body is produced by crystallizing an amorphous ceramic fiber composed of silicon and nitrogen by heat treatment within non-oxide ceramic powder in an inert gas atmosphere. The amorphous ceramic fiber is produced by thermally decomposing a pre-ceramic fiber produced by melting and spinning polysilazane. The amorphous ceramic fiber is mainly composed of silicon, nitrogen, carbon, and oxygen, and has such a composition that silicon has a 40 to 60 weight %, nitrogen has a 5 to 40 weight %, carbon has a 20 weight % or lower, and oxygen has a 50 weight % or lower.

REFERENCES:
patent: 4631260 (1986-12-01), Bartos et al.
patent: 4650773 (1987-03-01), Okamura et al.
patent: 4870035 (1989-09-01), Takamizawa et al.

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