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Mesoscopic structure of SiC fibers by neutron and x-ray scattering

Published online by Cambridge University Press:  31 January 2011

Kentaro Suzuya ,
Michihiro Furusaka ,
Noboru Watanabe ,
Makoto Osawa ,
Kiyohito Okamura ,
Kaoru Shibata ,
Tomoaki Kamiyama  and
Kenji Suzuki
Kentaro Suzuya*
Affiliation:
National Laboratory for High Energy Physics, Tsukuba 305, Japan
Michihiro Furusaka
Affiliation:
National Laboratory for High Energy Physics, Tsukuba 305, Japan
Noboru Watanabe
Affiliation:
National Laboratory for High Energy Physics, Tsukuba 305, Japan
Makoto Osawa
Affiliation:
Institute of Materials Science, University of Tsukuba, Tsukuba 305, Japan
Kiyohito Okamura
Affiliation:
College of Engineering, University of Osaka Prefecture, Sakai, Osaka 593, Japan
Kaoru Shibata
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980, Japan
Tomoaki Kamiyama
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980, Japan
Kenji Suzuki
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980, Japan
*
a)Department of Synchrotron Radiation Facility Project, Japan Atomic Energy Research Institute (JAERI), Tokai-mura, Naka-gun, Ibaraki 319–11, Japan.
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Abstract

Mesoscopic structures of SiC fibers produced from polycarbosilane by different methods were studied by diffraction and small-angle scattering of neutrons and x-rays. Microvoids of a size of 4–10 Å in diameter have been observed for the first time by neutron scattering in a medium momentum transfer range (Q = 0.1–1.0 Å−1). The size and the volume fraction of β–SiC particles were determined for fibers prepared at different heat-treatment temperatures. The results show that wide-angle neutron scattering measurements are especially useful for the study of the mesoscopic structure of multicomponent materials.

Type
Articles
Information
Journal of Materials Research , Volume 11 , Issue 5 , May 1996 , pp. 1169 - 1178
Copyright
Copyright © Materials Research Society 1996

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