In-situ X-ray diffraction study on dealloying: A scenario of a Cu90Au10 alloy
In-situ X-ray diffraction study on dealloying: A scenario of a Cu90Au10 alloy
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脱合金的原位 X 射线衍射研究:Cu90Au10 合金的情况
DOI:
10.1016/j.jpcs.2020.109879
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发表时间:
2021-03
影响因子:
4
通讯作者:
Zhonghua Zhang
中科院分区:
文献类型:
--
作者:
Ying Zhang;Faluo Kui;Qingguo Bai;Chi Zhang;Bin Yu;Zhonghua Zhang
In-situcharacterizations are of central importance to unveil dealloying mechanisms, but normal X-ray signals suffer from the interference from aqueous solutions. Herein, a special sample holder with flowing solutions was designed forin-situX-ray diffraction (XRD) measurements, and a Cu90Au10alloy was chosen as an example to investigate the dealloying mechanism usingin-situXRD. The results demonstrate that no intermediate phase appears during the dealloying of Cu90Au10, revealing a direct phase transformation from Cu(Au) solid solution to nanoporous Au. Moreover, the peak position of Au phase shows a non-monotonic shift, associated with complex strain states generated during dealloying.
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通讯作者:
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影响因子:
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