A Study on Chemical Short Range Ordering in Pd40Ni40P20Bulk Metallic Glass by Anomalous X-ray Scattering

Osami Haruyama, Takahiro Makimura, Tomoki Miyakawa, Kazumasa Sugiyama

研究成果: ジャーナルへの寄稿学術論文査読

3 被引用数 (Scopus)

抄録

A local change in the amorphous structure of bulk Pd40Ni40P20 glass during the thermal relaxation related to the chemical short-range order (CSRO) was examined by anomalous X-ray scattering (AXS) with energies near Ni and Pd K-absorption edges. The reversible CSRO process was confirmed by electrical resistance and density measurements. The environmental structural analysis around Ni and Pd revealed that the coordination number of Ni-Ni and Pd-Pd like-atom pairs increased with the degree of order formed in the CSRO process, while that of Ni-Pd unlike-atom pair decreased. The present analysis clearly indicates that the reversible CSRO process in the Pd40Ni40P20bulk glass is inferred to be a local structural change such like the micro-phase separation.

本文言語英語
ページ(範囲)381-392
ページ数12
ジャーナルHigh Temperature Materials and Processes
29
5-6
DOI
出版ステータス出版済み - 2010 4月 17

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