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Improvement of Young's modulus and tensile strength of polymer impregnation and pyrolysis processed SiC/SiC composite by improved continuity of matrix

Published online by Cambridge University Press:  03 March 2011

S. Ochiai ,
H. Okuda ,
S. Kimura ,
K. Morishita ,
M. Tanaka ,
M. Hojo  and
M. Sato
S. Ochiai*
Affiliation:
International Innovation Center, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
H. Okuda
Affiliation:
International Innovation Center, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
S. Kimura
Affiliation:
Faculty of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
K. Morishita
Affiliation:
Faculty of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
M. Tanaka
Affiliation:
Graduate School of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
M. Hojo
Affiliation:
Graduate School of Engineering, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
M. Sato
Affiliation:
Ube Research Laboratory, Ube Industries Ltd., 1978-5 Kogushi, Ube City,Yamaguchi 755-8633, Japan
*
a)Address all correspondence to this author. e-mail: ochiai@iic.kyoto-u.ac.jp
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Abstract

Influences of the continuity of the matrix on Young's modulus and tensile strength of unidirectional SiC/SiC mini-composite prepared by the polymer impregnation and pyrolysis method were studied experimentally by observation of appearance of matrix and tensile test and analytically by a shear lag–Monte Carlo simulation. The continuity of the matrix was improved by the addition of particles such as ZrSiO4, barium magnesium aluminosilicate, and Pyrex (borosilicate glass) into the matrix. The improved continuity of the matrix led to the increase in stress carrying capacity of the matrix and therefore to the increase in Young's modulus and tensile strength of the composite. Such a correlation between the continuity of the matrix and the property of the composite was verified numerically by the shear lag–Monte Carlo simulation.

Keywords

CompositeStrengthFracture
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 8 , August 2004 , pp. 2377 - 2388
Copyright
Copyright © Materials Research Society 2004

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References

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