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Processing and Mechanical Properties of Microcellular Ceramics

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Abstract:

Recently, a novel processing route for fabricating microcellular ceramics has been developed. The strategy for making the microcellular ceramics involves: (i) forming some shapes containing a mixture of preceramic polymer, expandable microspheres and optional fillers by a conventional ceramic forming method, (ii) foaming the compact by heating, (iii) cross-linking the foamed body, and (iv) transforming the foamed body into microcellular ceramics by pyrolysis. The flexural strength and compressive strengths of the microcellular ceramics were investigated; values up to 30 MPa and 100 MPa, respectively, were obtained at room temperature. The superior mechanical properties were attributed to homogeneous distribution of cells in microcellular ceramics.

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Periodical:

Key Engineering Materials (Volumes 317-318)

Pages:

899-904

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.317-318.899

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Online since:

August 2006

Authors:

Young Wook Kim, Shin Han Kim, Chul B. Park, Hai Doo Kim

Keywords:

Mechanical Property, Porosity, Porous Material, Process

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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