Thermal Diffusivity and Conductivity in Ceramic Matrix Fiber Composite Materials - Literature Study Page: 2 of 17
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Thermal Diffusivity and Conductivity in Ceramic Matrix Fiber Composite
Materials - Literature Study
Richard G. Quin
A technical literature review was conducted to gain an understanding of the state
of the art method, problems, results, and future of thermal diffusivity/conductivity of
matrix-fiber composites for high temperature applications. This paper summarizes the
results of test method development and theory. R esults from testing on various sample
types are discussed with concentration on the anisotropic characteristics of matrix-fiber
composites, barriers to heat flow, and notable microstructure observations. The
conclusion presents some observations from the technical literature, drawbacks of
current information and discusses potential needs for future testing.
Ceramic matrix-fiber composite materials have distinct advantages over
conventional materials for high temperature applications. Testing is in progress to better
understand and predict.the behavior of ceramic materials in high temperature environs.
Poor ductile behavior of ceramic materials has led to the development of fiber-reinforced
ceramic materials in an attempt to toughen these materials. Mechanical properties of
ceramic matrix-fiber composites have been and are still being extensively studied.
Emphasis on thermal properties studies of these materials is becoming more prevalent.
The introduction of fibers results in anisotropic behavior in both the mechanical and
The understanding of two thermal properties (diffusivity and conductivity) is
important in order to take full advantage of these materials in high temperature
applications. Analytical studies have shown that the behavior of these two properties is a
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Quinn, R.G. Thermal Diffusivity and Conductivity in Ceramic Matrix Fiber Composite Materials - Literature Study, report, May 2, 2000; Schenectady, New York. (digital.library.unt.edu/ark:/67531/metadc734802/m1/2/: accessed November 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.