Toa Nenryo Kogyo Kabushiki Kaisha

Hiroshihi Kaya

Tadashi Suzuki

Hiroyuki Aoki

Takeshi Isoda

Osamu Funayama

Mikiro Arai

Yuuji Tashiro

Genshiro Nishimura

Toshio Katahata

Mutsuo Haino

Silicon nitride based ceramic fibers containing Si, N, O and at least one metal M in amounts providing the atomic ratios N/Si of 0.3 to 3, O/Si of 0.0001 to 15 and M/Si of 0.001 to 5 and exhibiting an X-ray small angle scattering such that the ratio of the intensity of the small angle scattering of the fibers to that of air is 1 to 20. The ceramic fibers are produced by spinning of a polymetallosilazane into fibers and calcining the spun fibers and are useful as reinforcing fibers for composite artices having a metal or resin matrix.

Silicon nitride based ceramic fibers, process of preparing same and

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Niiza, Japan

Hiroshihi Kaya