Silicon nitride fiber synthesis from polycarbosilane fiber by radiation curing and pyrolysis under ammonia
Conference
·
OSTI ID:134936
- Hitachi Cable Ltd. (Japan)
- JAERI Takasaki, Gunma (Japan); and others
Silicon nitride(Si-N) fiber was synthesized by pyrolysis of radiation cured polycarbosilane(PCS) fiber in ammonia(NH{sub 3}) gas flow. The properties of Si-N fiber were very dependent on oxygen content included in the fiber during and after pyrolysis. The tensile strength of Si-N fiber was 2.5 GPa for a small content of 3wt% oxygen, and the electric resistivity was very high. The heat resistance in tensile strength and in electric resistivity was estimated to be 1300{degrees}C by ageing test in air for 1 hour.
- OSTI ID:
- 134936
- Report Number(s):
- CONF-9508127--
- Country of Publication:
- United States
- Language:
- English
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