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A laboratory based system for laue micro x-ray diffraction.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lynch, Paul A. Stevenson, Andrew W. Liang, Dao Parry, Damian Wilkins, Steven Tamura, N. |
| Copyright Year | 2007 |
| Abstract | A laboratory diffraction system capable of illuminating individual grains in a polycrystalline matrix is described. Using a microfocus x-ray source equipped with a tungsten anode and prefigured monocapillary optic, a micro-x-ray diffraction system with a 10 microm beam was developed. The beam profile generated by the ellipsoidal capillary was determined using the "knife edge" approach. Measurement of the capillary performance, indicated a beam divergence of 14 mrad and a useable energy bandpass from 5.5 to 19 keV. Utilizing the polychromatic nature of the incident x-ray beam and application of the Laue indexing software package X-Ray Micro-Diffraction Analysis Software, the orientation and deviatoric strain of single grains in a polycrystalline material can be studied. To highlight the system potential the grain orientation and strain distribution of individual grains in a polycrystalline magnesium alloy (Mg 0.2 wt % Nd) was mapped before and after tensile loading. A basal (0002) orientation was identified in the as-rolled annealed alloy; after tensile loading some grains were observed to undergo an orientation change of 30 degrees with respect to (0002). The applied uniaxial load was measured as an increase in the deviatoric tensile strain parallel to the load axis. |
| Starting Page | 023904 |
| Ending Page | 023904 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://dro.deakin.edu.au/eserv/DU:30052454/lynch-laboratorybased-2007.pdf |
| Alternate Webpage(s) | https://digital.library.unt.edu/ark:/67531/metadc899506/m2/1/high_res_d/935405.pdf |
| Alternate Webpage(s) | https://cloudfront.escholarship.org/dist/prd/content/qt7465n290/qt7465n290.pdf |
| PubMed reference number | 17578120v1 |
| Volume Number | 78 |
| Issue Number | 2 |
| Journal | The Review of scientific instruments |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Alloys Axis vertebra Computed Tomography Scanning Systems Diagnostic radiologic examination Indexes Magnesium Megarad Views:Finding:Point in time:To be specified in another part of the message:Narrative:XR X-Ray Diffraction antineoplaston A10 tungsten |
| Content Type | Text |
| Resource Type | Article |
