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Interfacial microstructure and stability of BN coated nicalon fiber/glass-ceramic matrix composites

Conference ·
OSTI ID:134904
 [1];  [2];  [3]
  1. United Technologies Research Center, East Hartford, CT (United States)
  2. Univ. of Southern California, Los Angeles, CA (United States)
  3. Oak Ridge National Lab., TN (United States)

Glass-ceramic matrix composites with dual-layer CVD coated SiC/BN interfaces applied to Nicalon SiC fibers have been developed. These composites have been shown to possess high strength and good fracture toughness to temperatures of 1200{degrees}C. Tensile creep, tensile fatigue, and long-time tensile stress-rupture tests were performed, with the results correlated to the stability of the fiber/matrix interfacial microstructure and chemistry.

OSTI ID:
134904
Report Number(s):
CONF-9508127--
Country of Publication:
United States
Language:
English

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