Development of thermal microstress and microstrain in polycrystalline zinc: particle size effects and yielding

DOI

Thermal microstress and microstrain develop in polycrystalline zinc powder particles due to anisotropic thermal expansion, as revealed by corresponding diffraction-line broadening. The extent and distribution of the microstrain will depend on the ratio between the powder particle size and the size of the constituting crystallites. Crystallites at the surface of the particles are mechanically less restricted than such in the inner region of the powder particles. Upon continuing a previously conducted, very successful temperature-dependent (between 300 K and 15 K) neutron powder-diffraction study on dedicatedly sieved coarse-particle zinc, we will now use smaller sized fractions of the corresponding original powder to study systematically the role of the surface effects but also of plastic deformation on the peak profiles.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24088310
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24088310
Provenance
Creator Professor Andreas Leineweber; Mr Matej Fonovic; Mr Thomas Woehrle
Publisher ISIS Neutron and Muon Source
Publication Year 2015
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2011-12-03T09:37:17Z
Temporal Coverage End 2012-02-25T08:05:04Z