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Mechanical Behavior of Sapphire Reinforced Alumina Matrix Composites at Elevated TemperaturesZirconia coated sapphire reinforced alumina matrix composites have been tested both after heat treatment to 1400 C and at temperatures ranging from 800 C to 1200 C in. air. Interfacial shear stress has also been measured with fiber pushout tests performed in air at room temperature, 800 C and 1OOO C. Matrix crack spacing was measured for the tensile tested composites and used to estimate interfacial shear stress up to 1200 C. Electron microscopy was used to determine the source of fiber fracture and to study interfacial failure within the composite.
Document ID
Document Type
Reprint (Version printed in journal)
Jaskowiak, Martha H.
(NASA Lewis Research Center Cleveland, OH United States)
Eldridge, Jeffrey I.
(NASA Lewis Research Center Cleveland, OH United States)
Setlock, John A.
(Case Western Reserve Univ. Cleveland, OH United States)
Gyekenyesi, John Z.
(Cleveland State Univ. Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1997
Subject Category
Composite Materials
Meeting Information
Ceramic, Metal and Carbon Composites, Materials and Structures(Cocoa Beach, FL)
Distribution Limits
Work of the US Gov. Public Use Permitted.
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