Activation Enthalpy for Diffusion in Glass

Activation Enthalpy for Diffusion in Glass
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玻璃中扩散的活化焓

DOI:
10.1111/j.1151-2916.1986.tb07347.x
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发表时间:
1986
影响因子:
3.9
通讯作者:
D. G. Howitt
D. G. Howitt
中科院分区:
材料科学2区
文献类型:
--
作者:
D. Mcelfresh;D. G. Howitt

文献摘要

被引文献

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近三十年来,人们一直使用弗伦克尔导出的一个方程来描述原子在玻璃中扩散的应变能。该方程描述了扩大球腔的应变能,并预测了物理上不合理的结果。提出了一个圆对称放大的替代方程,它是一个更有代表性的几何,不会导致这些不一致。
Foe nearly three decades people have employed an equation derived by Frenkel to describe the strain energy of an atom diffusing in a glass. This equation describes the strain energy to enlarge a spherical cavity and predicts physically unreasonable results. An alternative equation for a circularly symmetric enlargement is presented which is a more representative geometry and does not lead to these inconsistencies.