A Re-Analysis of Short-Range Order in Cu3Au

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Cowley's measurements of the short-range order parameters, αi, in Cu3Au at T=405°C have been re-evaluated taking into account the effects of thermal vibrations and static displacements due to differing atomic sizes. The separate corrections for the thermal vibrations and the first-neighbor atomic size factor are found to be quite large, demonstrating their importance in the usual experiments. When combined, the corrections in this case largely cancel, and only the values of α1 and α3 are appreciably changed. The corrected values are: α1= -.113, α2= +.185, α3= -.009, α4= +.082, α5= -.058.

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Walker, C. B. & Keating, D. T. February 25, 1963.

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Cowley's measurements of the short-range order parameters, αi, in Cu3Au at T=405°C have been re-evaluated taking into account the effects of thermal vibrations and static displacements due to differing atomic sizes. The separate corrections for the thermal vibrations and the first-neighbor atomic size factor are found to be quite large, demonstrating their importance in the usual experiments. When combined, the corrections in this case largely cancel, and only the values of α1 and α3 are appreciably changed. The corrected values are: α1= -.113, α2= +.185, α3= -.009, α4= +.082, α5= -.058.

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Digitized from microopaque cards (1).

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  • February 25, 1963

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  • Feb. 5, 2022, 9:55 a.m.

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  • Nov. 6, 2022, 2:11 a.m.

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Walker, C. B. & Keating, D. T. A Re-Analysis of Short-Range Order in Cu3Au, report, February 25, 1963; Washington D.C.. (https://digital.library.unt.edu/ark:/67531/metadc1255816/: accessed November 29, 2023), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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