The Dominant Type of Atomic Disorder in α‐Al2O3
The Dominant Type of Atomic Disorder in α‐Al2O3
复制标题
α-Al2O3 中原子无序的主要类型
DOI：
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发表时间：
1978
期刊：
影响因子：
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通讯作者：
F. A. Kröger
中科院分区：
文献类型：
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作者：
S. Mohapatra;F. A. Kröger
根据各种模型，从掺杂施主和受主的α-Al_2 O_3的实验结果推导出的每个缺陷的形成能与Dienes等人对各种无序模型计算出的理论值进行比较，显示出exFrimentd值与最小理论值（对肖特基无序获得的）最接近的对应关系。这表明理论结果是可靠的，肖特基无序是α-Al_2O_3中原子无序的主要类型。由Hollenberg和Gordon的Al_2O_3：Fe的蠕变数据可以确定Al的Frenkel无序的焓。
Comparison of the energy of formation per defect, as deduced from experimental results on α-Al2O3 doped with donors and acceptors on the basis of various models, with theoretical values calculated by Dienes et al. for various disorder models shows closest correspondence of the exFrimentd values with the smallest theoretical values (obtained for Schottky disorder). This indicates that the theoretical results are reliable and that Schottky disorder is the major type of atomic disorder in α-Al2O3. Creep data on Al2O3:Fe by Hollenberg and Gordon make it possible to determine the enthalpy of Frenkel disorder of Al.