Ceramic fibers and a process for producing the same

摘要

PCT No. PCT/JP88/01197 Sec. 371 Date Jul. 21, 1989 Sec. 102(e) Date Jul. 21, 1989 PCT Filed Nov. 25, 1988 PCT Pub. No. WO89/04884 PCT Pub. Date Jun. 1, 1989.Ceramic fibers characterized by comprising a quaternary system composed of Si, C, N, and O and having a specific resistance of 106 to 1010 OMEGA xcm, and a suitable process for producing the ceramic fibers characterized by reacting infusible polycarbosilane fibers with ammonia and further heat treating the reaction product in an inert gas.