Hydrogen-induced structural transformation of AuCu nanoalloys probed by synchrotron X-ray diffraction techniques

M. Yamauchi, K. Okubo, T. Tsukuda, K. Kato, M. Takata, S. Takeda

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In situ X-ray diffraction measurements reveal that the transformation of a AuCu nanoalloy from a face-centered-cubic to an L10 structure is accelerated under a hydrogen atmosphere. The structural transformation rate for the AuCu nanoalloy under hydrogen above 433 K was found to be 100 times faster than that in a vacuum, which is the first quantitative observation of hydrogen-induced ordering of nanoalloys.

Original languageEnglish
Pages (from-to)4067-4071
Number of pages5
Issue number8
Publication statusPublished - Apr 21 2014


All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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