Mass transport in the presence of internal defect reactions. Concept of conservative ensembles. III, Trapping effect of dopants on chemical diffusion
Mass transport in the presence of internal defect reactions. Concept of conservative ensembles. III, Trapping effect of dopants on chemical diffusion
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存在内部缺陷反应时的传质。
DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
J. Maier
中科院分区：
文献类型：
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作者：
J. Maier
考虑由于杂质离子的价态变化（与电子电荷载体的结合）和/或由于与离子缺陷的结合而导致的掺杂剂离子对化学扩散的捕获效应。结果表明，化学或双极扩散系数可能会发生显着变化，甚至可能低于所考虑的离子和电子缺陷的扩散率。以 SrTiO3 和 ZrO2 (Y2O3) 为例进行数据重新解释。
Trapping effects of dopant ions on the chemical diffusion due to valence changes of the impurity ions (association with electronic charge carriers) and/or due to association with ionic defects are considered. It is shown that the chemical or ambipolar diffusion coefficient may be substantially changed and may even be lower than both the diffusivity of the ionic and the electronic defects under consideration. Data reinterpretation is exemplified for SrTiO3 and ZrO2 (Y2O3).