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Time/Temperature Dependent Tensile Strength of SiC and Al2O3-Based FibersIn order to understand and model the thermomechanical behavior of fiber-reinforced composites, stress-rupture, fast-fracture, and warm-up rupture studies were conducted on various advanced SiC and Al2O3-based fibers in the,temperature range from 20 to 1400 C in air as well as in inert environments. The measured stress-rupture, fast fracture, and warm-up rupture strengths were correlated into a single master time/temperature-dependent strength plot for each fiber type using thermal activation and slow crack growth theories. It is shown that these plots are useful for comparing and selecting fibers for CMC and MMC reinforcement and that, in comparison to stress rupture tests, the fast-fracture and warm-up tests can be used for rapid generation of these plots.
Document ID
19970010494
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yun, Hee Mann
(National Aeronautics and Space Administration. Lewis Research Center Cleveland, OH United States)
DiCarlo, James A.
(National Aeronautics and Space Administration. Lewis Research Center Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1997
Subject Category
Composite Materials
Report/Patent Number
E-10538
NASA-TM-107370
NAS 1.15:107370
Meeting Information
Meeting: 1996 Annual Meeting
Location: Indianapolis, IN
Country: United States
Start Date: April 14, 1996
End Date: April 17, 1996
Sponsors: American Ceramic Society
Accession Number
97N15700
Funding Number(s)
PROJECT: RTOP 537-04-20
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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