Combined texture and structure analysis of deformed limestone from time-of-flight neutron diffraction spectra
- Department of Geology and Geophysics, University of California, Berkeley , California 94720 (United States)
- Intense Pulsed Neutron Source, Argonne National Laboratory, Argonne , Illinois 60439 (United States)
The orientation distribution of a textured polycrystalline material has been traditionally determined from a few individual pole figures of lattice planes hkl, measured by x-ray or neutron diffraction. A new method is demonstrated that uses the whole diffraction spectrum, rather than extracted peak intensities, by combining the orientation distribution calculation with the crystallographic Rietveld method. The feasibility of the method is illustrated with time-of-flight neutron diffraction data of experimentally deformed polycrystalline calcite. It is possible to obtain quantitative information on texture, crystal structure, microstructure, and residual stress from highly incomplete pole figures and from regions of the diffraction spectrum containing many overlapping peaks. The approach provides a key for quantitative texture analysis of low symmetry compounds and of composites with complicated diffraction spectra. {copyright} {ital 1997 American Institute of Physics.}
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 463442
- Journal Information:
- Journal of Applied Physics, Vol. 81, Issue 2; Other Information: PBD: Jan 1997
- Country of Publication:
- United States
- Language:
- English
Similar Records
High stereographic resolution texture and residual stress evaluation using time-of-flight neutron diffraction
Texture development in S200-D, -E and P31664 beryllium blocks from neutron diffraction spectra