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Thermal Properties of Boron-Rich Borides

Published online by Cambridge University Press:  25 February 2011

H. E. Fischer ,
E. T. Swartz ,
P. R. H. Türkes  and
R. O. Pohl
H. E. Fischer
Affiliation:
ONR graduate fellow
E. T. Swartz
Affiliation:
Laboratory of Atomic and Solid State Physics
P. R. H. Türkes
Affiliation:
Laboratory of Atomic and Solid State Physics
R. O. Pohl
Affiliation:
Laboratory of Atomic and Solid State Physics
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Abstract

The specific heats of β-B and of B4C have been reviewed, and measurements of a different sample of B4C have been carried out below 80 K. A specific heat anomaly observed previously in boron carbides has been shown to be extrinsic in origin. The thermal conductivity of B1−x Cx , for x < 0.20, between 0.2 and 2000 K has also been reviewed, and recent measurements have been added. The magnitude and temperature dependence of the conductivity are somewhat similar to what is expected for amorphous boron, except for the characteristic plateau which is not clearly discernible. A possible explanation for the strong phonon scattering is discussed.

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Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 97: Symposium I – Novel Refractory Semiconductors , 1987 , 69
Copyright
Copyright © Materials Research Society 1987

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References

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