X‐Ray Measurement of Order in the Alloy Cu3Au

Autor:	Zigmond W. Wilchinsky
Rok vydání:	1944
Předmět:	Diffraction Condensed matter physics Chemistry Alloy X-ray engineering Short range order Range (statistics) General Physics and Astronomy Order (group theory) engineering.material
Zdroj:	Journal of Applied Physics. 15:806-812
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.1707395
Popis:	X‐ray diffraction theory is developed for the evaluation of long range order and short range order in the alloy Cu3Au, and experiments are described whereby each type of order was measured. Values of the long range order parameter S were found to be 0.86 for 250°C, 0.81 for 370°C, and 0.79 for 380°C, the samples being held at elevated temperatures during the x‐ray exposures. At the critical temperature Tc=388°C, S suddenly dropped to zero. Above Tc short range order was found to exist, the amount present being specified by a set of parameters σi which are associated with the interatomic distances ri. The dominant short range order parameter σ1, referring to nearest neighbors, was evaluated as 0.50 for 540°C and 0.25 for 750°C.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7967892a4eea6cccdb4e4358d071729f https://doi.org/10.1063/1.1707395 Zobrazit plný text záznamu