Abstract
There is no difference in the thermal expansion behavior of an intermetallic compound (Al2Au) and of an ionic (LiF), except in the magnitude of the expansion coefficients, which for both compounds upon cooling below 40°K approach zero. The lattice parameters of the two compounds mentioned decrease uniformly and without anomalies with lowering the temperature, approaching a constant value below 40°K. The a–T relationship between 40 and 180° is given in form of equations. A pump working on the Joule‐Thomson principle was used for cooling. The GRÜNEISEN parameter, γ, of LiF between 40 and 180°K is a constant, contrary to theoretical prediction. The values of a, α and γ agree well with previous measurements, where liquid gases were used for cooling and lattice parameter determinations and a dilatometer for expansivity measurements. Copyright © 1972 Verlag GmbH & Co. KGaA, Weinheim
Recommended Citation
M. E. Straumanis and J. S. Shah, "Low Temperature Lattice Parameters And Expansion Coefficients Of AI2Au And LiF Gruneisen Constants Of LiF," ZAAC ‐ Journal of Inorganic and General Chemistry, vol. 391, no. 1, pp. 79 - 85, Wiley, Jan 1972.
The definitive version is available at https://doi.org/10.1002/zaac.19723910110
Department(s)
Materials Science and Engineering
Publication Status
Full Access
International Standard Serial Number (ISSN)
1521-3749; 0044-2313
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 Wiley, All rights reserved.
Publication Date
01 Jan 1972
