Anisotropic Thermal Expansion of Single Crystals of Thallium, Yttrium, Beryllium, and Zinc at Low Temperatures
Journal Article
·
· Journal of Applied Physics
The anisotropic thermal expansion of the hexagonal elements, thallium, yttrium, beryllium, and zinc, was measured. The temperature range for the thallium, yttrium, and zinc measurements was 4.2 to 273.2 deg K, while for beryllium the range was 77 to 273.2 deg K. Dimensional changes were detected by an interferometric technique, and the movement of the interference fringes by a photomultiplier tube. From the measured values of DELTA L/L0, the coefficients of thermal expansion and the c/a ratios of the metals were calculated as a function of temperature. Previous measurements are reviewed.
- Research Organization:
- Ames Lab., Ames, Iowa
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-16-009233
- OSTI ID:
- 4807434
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 1 Vol. 33; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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