New Data-Driven Interacting-Defect Model Describing Nanoscopic Grain Boundary Compositions in Ceramics
New Data-Driven Interacting-Defect Model Describing Nanoscopic Grain Boundary Compositions in Ceramics
复制标题
新的数据驱动的相互作用缺陷模型描述陶瓷中的纳米晶界成分
DOI:
10.1021/acs.jpcc.0c05713
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Mebane, David S.
中科院分区:
文献类型:
--
作者:
Tong, Xiaorui;Bowman, William J.;Mejia-Giraldo, Alejandro;Crozier, Peter A.;Mebane, David S.
A data-driven, interacting-defect model for inhomogeneous systems has quantitatively described the nanoscopic composition of high solute concentrations at grain boundaries in ion-conducting ceramics. The data-driven Cahn–Hilliard model was applied to high-spatial-resolution composition data gathered at grain boundaries in calcium-doped ceria. The statistical methodology for the data-driven procedure shows definitively that an inhomogeneous thermodynamics approach (gradient terms) is required to quantitatively describe the local grain boundary composition. The model additionally shows coaccumulation of negatively charged acceptor dopants and positively charged oxygen vacancies at the interface, which is qualitatively in accordance with atom probe tomography evidence in acceptor-doped ceria. The reported model is the first to quantitatively explain microscopic experiments in ion-conducting ceramics.
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影响因子:
9.2
作者:
Yinkai Lei;Tian;D. Mebane;Y. Wen
通讯作者:
Y. Wen
影响因子:
3.9
作者:
X. Tong;D. Mebane;R. D. De Souza
通讯作者:
X. Tong;D. Mebane;R. D. De Souza
DOI:
10.1016/0001-6160(67)90266-0
发表时间:
1967
期刊:
Acta Metallurgica
影响因子:
--
作者:
K. Rundman;J. Hilliard
通讯作者:
J. Hilliard
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
A. Tschöpe;S. Kilassonia;R. Birringer
通讯作者:
R. Birringer
DOI:
--
发表时间:
2014
期刊:
Physical Chemistry, Chemical Physics - PCCP
影响因子:
--
作者:
M. Göbel;G. Gregori;J. Maier
通讯作者:
J. Maier