EXAFS study of mechanically alloyed Ni-Ta powder

Autor:	Ehrenfried Zschech, Johannes Zbiral, Hans-Jürgen Ullrich, Gerhard Jangg, B. N. Novgorodov
Rok vydání:	1992
Předmět:	Exafs spectroscopy Materials science Extended X-ray absorption fine structure Scattering Tantalum Analytical chemistry chemistry.chemical_element Nanochemistry Analytical Chemistry Amorphous solid Crystallography Nickel chemistry Powder metallurgy sense organs
Zdroj:	Mikrochimica Acta. 107:235-243
ISSN:	1436-5073 0026-3672
DOI:	10.1007/bf01244477
Popis:	Amorphous Ni-Ta was obtained by mechanically alloying pure crystalline powders of nickel and tantalum. Structural changes in the local atomic arrangement effected by the mechanical treatment were studied by X-ray scattering and EXAFS spectroscopy. Both X-ray scattering and EXAFS data represent the destruction of long-range order with increasing milling time, i.e., the crystalline-to-amorphous transition. In contrast to an EXAFS study on the Ni-Ti system, our analysis does not confirm the presence of chemical short-range order.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eca8a26b4c0284f6f95b76f87350e413 https://doi.org/10.1007/bf01244477 Zobrazit plný text záznamu Full text from SpringerLink