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Production of Porous Silicon Carbide Ceramics by Starch Consolidation Technique

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Abstract:

Silicon carbide is used to produce abrasive and high-temperature structural ceramic materials due to its mechanical and chemical properties. The possible applications of porous silicon carbide ceramics are diesel engines catalysers and molten metal filters. In the last years the starch gained importance as a pore-forming and consolidation agent, due to it is environmental friendly and easily processing. The current work uses starch (corn, rice and potato) as pore forming and consolidation agent. The samples sintered at different sintering times were characterized by density and microstructure (XRD, SEM). The results show that the samples presented porosity between 20 and 40% and the microstructures obtained is homogeneous with a pore size similar to the starch particle added.

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Periodical:

Materials Science Forum (Volumes 727-728)

Pages:

821-825

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.727-728.821

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Online since:

August 2012

Authors:

Rodrigo Mende Mesquita, Ana Helena de Almeida Bressiani

Keywords:

Porous, Silicon Carbide (SiC), Starch

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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