The phase equilibria of the ternary system In–Ni–Sn were investigated experimentally at 700 °C using X-ray diffraction (XRD) and scanning electron microscopy (SEM) including electron micro probe analysis (EMPA) and energy dispersive X-ray spectroscopy (EDX). A corresponding isothermal section was established based on these results. This particular temperature was chosen because it allowed obtaining reliable results within reasonable time. The existence of the ternary phase InNi6Sn5 was confirmed whereas the ternary compound In2NiSn, reported earlier in literature, was found to be part of a large solid solution field based on binary InNi. The ternary solubility of the binary phases was established, and continuous solid solutions were found between the isostructural phases Ni3Sn LT and InNi3 as well as between Ni3Sn2 HT and InNi2. In addition, this isothermal section could be well reproduced by CALPHAD modelling. The resulting calculated isotherm at 700 °C is presented, too, and compared with the experimental results.

中文翻译：

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三元 In-Ni-Sn 系统在 700 °C 时的相平衡

使用 X 射线衍射 (XRD) 和扫描电子显微镜 (SEM) 包括电子显微探针分析 (EMPA) 和能量色散 X 射线光谱，在 700 °C 下实验研究了 In-Ni-Sn 三元体系的相平衡。 EDX）。基于这些结果建立了相应的等温截面。选择这个特定温度是因为它允许在合理的时间内获得可靠的结果。三元相 InNi6Sn5 的存在得到证实，而文献中较早报道的三元化合物 In2NiSn 被发现是基于二元 InNi 的大型固溶体场的一部分。建立了二元相的三元溶解度，在等结构相 Ni3Sn LT 和 InNi3 之间以及 Ni3Sn2 HT 和 InNi2 之间发现了连续固溶体。此外，CALPHAD 模型可以很好地再现这个等温截面。计算得出的 700 °C 等温线也给出，并与实验结果进行比较。