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Copper-boron nitride interaction in hot-pressed ceramics

Published online by Cambridge University Press:  31 January 2011

Milan Hubáček ,
Tadao Sato  and
Masanori Ueki
Milan Hubáček*
Affiliation:
National Institute for Research in Inorganic Materials, Namiki 1–1, Tsukuba, 305 Japan
Tadao Sato
Affiliation:
National Institute for Research in Inorganic Materials, Namiki 1–1, Tsukuba, 305 Japan
Masanori Ueki
Affiliation:
Advanced Technology Research Labs, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki, 211 Japan
*
a)Author to whom correspondence should be addressed, presently with Advanced Technology Research Labs, Nippon Steel Corporation, 1618 Ida, Nakahara-ku, Kawasaki, 211 Japan.
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Abstract

Ceramics were prepared by hot pressing of chemical mixtures of turbostratic boron nitride with copper. A positive effect of copper on boron nitride crystallization and densification has been found. Preferred orientation of boron nitride grains has been revealed in such ceramics, being opposite to general experience: the c-axis of boron nitride crystallites was arranged preferably within a plane perpendicular to the direction of uniaxial pressure. Such an arrangement is interpreted as a result of the uniaxial compression of the boron nitride grains extensively growing within the c crystallographic axis.

Type
Articles
Information
Journal of Materials Research , Volume 12 , Issue 1 , January 1997 , pp. 113 - 118
Copyright
Copyright © Materials Research Society 1997

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References

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