A Limited Condition for Bifurcate or Trifurcate Kirkendall Planes in Multiple Phase Diffusion Couples
A Limited Condition for Bifurcate or Trifurcate Kirkendall Planes in Multiple Phase Diffusion Couples
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多相扩散偶中二叉或三叉柯肯德尔平面的有限条件
DOI：
10.4028/www.scientific.net/ddf.297-301.1487
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
O. Taguchi
中科院分区：
文献类型：
--
作者：
T. Shimozaki;T. Okino;C.G. Lee;O. Taguchi
一般来说，在扩散偶中只能看到一个柯肯达尔平面。然而，在Ti/TiAl 3或Co/CoSi 2多相扩散偶（M偶）中报告了分叉或三叉Kirkendall平面[1，2]。作者[3]之前已经展示了一种数值技术，用于分析嵌入M对中的多个标记物（M-M）的移动，并考虑了摩尔体积变化对扩散方向的影响。使用这种技术，可以可视化空位（晶格平面）在耦合中被消除或产生的地方。本文试图用这种数值方法证明M-力偶中的分叉或三叉Kirkendall平面，并阐明分叉或三叉Kirkendall平面的极限条件。
In general, only one Kirkendall plane can be seen in a diffusion couple. However, bifurcate or trifurcate Kirkendall planes have been reported in Ti/TiAl3 or Co/CoSi2 multi-phase diffusion couples (M-couple) [1,2]. The authors [3] have previously shown a numerical technique to analyze the movement of multiple markers (M-M) embedded in a M-couple taking the molar volume change effect to the diffusion direction into account. Using this technique, one can visualize the places where vacancies (lattice planes) are annihilated or generated in the couple. Here, we try to demonstrate the bifurcate or trifurcate Kirkendall planes in the M-couple and clarify the limited conditions of bifurcate or trifurcate Kirkendall planes by using this numerical technique.