Processing and Structural Advantages of the Sylramic-iBN SiC Fiber for SiC/SiC ComponentsThe successful high-temperature application of complex-shaped SiC/SiC components will depend on achieving as high a fraction of the as-produced fiber strength as possible during component fabrication and service. Key issues center on a variety of component architecture, processing, and service-related factors that can reduce fiber strength, such as fiber-fiber abrasion during architecture shaping, surface chemical attack during interphase deposition and service, and intrinsic flaw growth during high-temperature matrix formation and composite creep. The objective of this paper is to show that the NASA-developed Sylramic-iBN SiC fiber minimizes many of these issues for state-of-the-art melt-infiltrated (MI) SiC/BN/SiC composites. To accomplish this, data from various mechanical tests are presented that compare how different high performance SiC fiber types retain strength during formation of complex architectures, during processing of BN interphases and MI matrices, and during simulated composite service at high temperatures.
Document ID
20120008561
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Yun, H. M. (NASA Glenn Research Center Cleveland, OH, United States)
Dicarlo, J. A. (NASA Glenn Research Center Cleveland, OH, United States)
Bhatt, R. T. (American Ceramic Society OH, United States)
Hurst, J. B. (American Ceramic Society OH, United States)
Date Acquired
August 25, 2013
Publication Date
March 26, 2008
Subject Category
Composite Materials
Meeting Information
Meeting: 27th Annual International Conference on Advanced Ceramics and Composites