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Title: ANISOTROPIC THERMAL EXPANSION OF SINGLE CRYSTALS OF THALLIUM, YTTRIUM, BERYLLIUM, AND ZINC AT LOW TEMPERATURES

Journal Article · · Journal of Applied Physics (U.S.)
DOI:https://doi.org/10.1063/1.1728490· OSTI ID:4829362
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The anisotropic thermal expansion of the hexagonal elements, T1, Y, Be, and Zn was measured. The temperature range for the T1, Y, and Zn measurements was 4.2-273.2 deg K, while for beryllium the range was 77-273.2 deg K. Dimensional changes were detected by an interferometric technique, and the movement of the interference fringes was detected with a photomultiplier tube. From the measured values of DELTA L/L/sub O/ the coefficients of thermal expansion and the c/a ratios of the metals were calculated as a function of temperature. A review of previous measurements of the thermal expansion of these metals is also included. (auth)

Research Organization:
Ames Lab., Ames, IA (United States)
Sponsoring Organization:
USDOE
NSA Number:
NSA-16-024193
OSTI ID:
4829362
Report Number(s):
IS-292; 0021-8979
Journal Information:
Journal of Applied Physics (U.S.), Vol. Vol: 33; Other Information: IS-292. Orig. Receipt Date: 31-DEC-62
Country of Publication:
Country unknown/Code not available
Language:
English

References (20)

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Related Subjects

METALS, CERAMICS, AND OTHER MATERIALS
ANISOTROPY
BERYLLIUM
CONFIGURATION
DETECTION
ELEMENTS
EXPANSION
INTERACTIONS
MEASURED VALUES
METALS
NUMERICALS
OPTICAL SYSTEMS
PHOTOMULTIPLIERS
STANDARDS
THALLIUM
TUBES
VARIATIONS
YTTRIUM
ZINC