Multiscale phase homogeneity in bulk nanocrystalline high entropy oxides
Multiscale phase homogeneity in bulk nanocrystalline high entropy oxides
复制标题
块体纳米晶高熵氧化物的多尺度相均匀性
DOI:
10.1016/j.jeurceramsoc.2021.03.035
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发表时间:
2021
影响因子:
5.7
通讯作者:
Schoenung, Julie M.
中科院分区:
文献类型:
--
作者:
Dupuy, Alexander D.;Chellali, Mohammed Reda;Hahn, Horst;Schoenung, Julie M.
X-ray diffraction, energy dispersive X-ray spectroscopy, and atom probe tomography (APT) were used to assess the phase homogeneity of bulk sintered (Cu, Co, Mg, Ni, Zn)O transition metal high entropy oxides (TM-HEOs) across multiple length scales. These three methods were applied to both coarse-grain and nanocrystalline TM-HEO samples sintered using two different processing routes. Coarse-grain samples were prepared by reaction sintering of unreacted nanopowders using conventional sintering, while nanocrystalline samples were prepared from solid-state synthesized nanopowders consolidated using spark plasma sintering. Despite the different processing methods and grain sizes, the TM-HEO samples exhibit little-to-no chemical or phase segregation across all length scales. Critically, APT confirms that there is no chemical segregation at the nm scale even after solid-state synthesis and high temperature consolidation.
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DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
Ma Zhi;Liang Guang;Liang Jinsheng
通讯作者:
Liang Jinsheng
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
W. Tomlinson;A. Easterlow
通讯作者:
A. Easterlow
影响因子:
2.8
作者:
Miller, Michael K.;Russell, Kaye F.;Larson, David J.
通讯作者:
Larson, David J.
影响因子:
6.2
作者:
J. Hernández;M. Herrera;J. Pizarro;P. Galindo;M. González;J. Abell;R. Walters;S. Molina;S. Duguay
通讯作者:
S. Duguay