OPTICAL AND MECHANICAL PROPERTIES OF ALKALI HALIDE CRYSTALS. Final Report, February 1, 1959 to February 28, 1961
Technical Report
·
OSTI ID:4843630
Mechanical Properties of Alkali Halides. Tensile, compression, and hardness measurements were made on KCl and NaCl crystals which were either clear or stained on their surfaces. Some measurements were also made on KCl crystals exposed to x or u-v radiation. Dislocations in KCl Crystals. The arrangement of dislocations in KCl after various treatments was studied with the etch pit technique. The formation of cracks was studied, and the mechanism of crack closure by annealing was found to be evaporation-condensation. Color Centers in KCl Crystals. Color centers induced by soft x rays in KCl crystals were studied by measuring absorption spectra and expansion during the irradiation. The concentration of F centers was found to increase with the amount of crystal deformation. The number of vacancies produced by irradiation as measuredby crystal expansion was approximately 10 times greater than those measured optically. (D. L.C.)
- Research Organization:
- University of Notre Dame, Notre Dame, Ind.
- NSA Number:
- NSA-15-027785
- OSTI ID:
- 4843630
- Report Number(s):
- TID-13585
- Country of Publication:
- United States
- Language:
- English
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