A novel silicon-boron-nitrogen-carbon based ceramic fiber

摘要

The present invention relates to novel amorphous high strength SiBN (C) fibers resistant to high temperature creep, its preparation and use.;The fiber has a creep value m of 0.4 to 1 (1 hour by standard BSR test, 1400 ° C) when the strength exceeds 2.5 GPa at a high temperature and the elastic modulus exceeds 250 GPa.