Thermally induced microstrain broadening in hexagonal zinc
Journal Article
·
· Zeitschrift fur Kristallographie supplement
OSTI ID:960950
- Los Alamos National Laboratory
- STUTTGART, GERMANY
- DRESDEN UNIV
Neutron powder-diffraction experiments on polycrystalline hexagonal zinc show considerable temperature-dependent line broadening. Whereas as-received zinc at 300 K exhibits narrow reflections, during cooling to a minimum temperature of 10K considerable line-broadening appears, which largely disappears again during reheating. The line broadening may be ascribed to microstrains induced by thermal microstresses due to the anisotropy of the thermal expansion (shrinkage) of hexagonal zinc. Differences between the thermal microstrains and theoretical predictions considering elastic deformation of the grains can be explained by plastic deformation and surface effects.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-06NA25396
- OSTI ID:
- 960950
- Report Number(s):
- LA-UR-08-06746; LA-UR-08-6746; TRN: US201008%%854
- Journal Information:
- Zeitschrift fur Kristallographie supplement, Journal Name: Zeitschrift fur Kristallographie supplement
- Country of Publication:
- United States
- Language:
- English
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