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Katsuji Haruna1, Hiroshi Maeta2, Kazutoshi Ohashi Kazutoshi Ohashi1 and Takuro Koike Takuro Koike1
Copyright (c) 1992 The Japan Society of Applied Physics
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Citation Katsuji Haruna et al 1992 Jpn. J. Appl. Phys. 31 2527
DOI 10.1143/JJAP.31.2527
247 Total downloads
The lattice parameter of synthetic diamond single crystals has been measured in the range 4.2-320 K by the X-ray diffraction method. The lattice parameter is found to be nearly constant between 4.2 and 90 K. The thermal expansion coefficient α calculated from the experimental results is very small (of the order of 10-7 or less) and no definite evidence of the negative thermal expansion is found within our relative experimental accuracy of the order of ±1×10-6.
