Abstract
The linear thermal expansion coefficient α of polyoxymethylene has been measured parallel (∥) and normal (⊥) to the symmetry axis, from 2 to 32 K, 55 to 90 K, and at 283 K. Below 100 K, α∥ is small and negative, while α⊥ is relatively large and positive. The heat capacity has been measured from 2 to 18 K and values have been calculated for the principal Grüneisen parameters γ, γ⊥, and γ∥. The first two are nearly constant at ∼+1.3 from 3 to 80 K, while γ∥ has a value of ∼−1.1 at helium temperatures but becomes positive at higher temperatures.
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Dates
Type | When |
---|---|
Created | 22 years, 6 months ago (Feb. 27, 2003, 4:11 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 9, 2024, 9:57 a.m.) |
Indexed | 1 year, 6 months ago (Feb. 9, 2024, 5:24 p.m.) |
Issued | 49 years, 1 month ago (July 15, 1976) |
Published | 49 years, 1 month ago (July 15, 1976) |
Published Print | 49 years, 1 month ago (July 15, 1976) |
@article{White_1976, title={Thermal expansion and Grüneisen parameters of a polyoxymethylene crystal}, volume={65}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.433135}, DOI={10.1063/1.433135}, number={2}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={White, G. K. and Smith, T. F. and Birch, J. A.}, year={1976}, month=jul, pages={554–558} }