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首页> 外文期刊>Journal of Phase Equilibria and Diffusion >Experimental Phase Diagram of the Al-Er-Zr Ternary System
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Experimental Phase Diagram of the Al-Er-Zr Ternary System

机译:Al-Er-Zr三元系的实验相图

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The phase diagram of the Al-Er-Zr ternary system at 773 K has been experimentally investigated by means of x-ray powder diffraction (XRD), differential thermal analysis (DTA) and scanning electron microscopy (SEM) with energy dispersive analysis (EDX). The existence of 13 binary compounds, i.e. Al_3Zr, Al_2Zr, Al_3Zr_2, AlZr, Al_3Zr_4, Al_2Zr_3, AlZr_2, AlZr_3, Al_3Er, Al_2Er, AlEr, Al_2Er_3 and AlEr_2 was confirmed. It is proved that the phases Al_3Zr_5 and Al_4Zr_s do not exist at 773 K. The isothermal section consists of 16 single-phase regions, 29 binary-phase regions and 14 ternary-phase regions. The maximum solid solubility of Zr in Al_3Er, Al_2Er, AlEr, Al_2Er_3 and Er is about 9, 14, 4.5, 5.4, and 12 at.% Zr, respectively. No remarkable solid solubility could be found in the other compounds of this ternary system at 773 K. No ternary compound is found in the present work.
机译:通过X射线粉末衍射(XRD),差热分析(​​DTA)和带有能量色散分析(EDX)的扫描电子显微镜(SEM),对773 K处的Al-Er-Zr三元体系的相图进行了实验研究。 )。确认存在13种二元化合物,即Al_3Zr,Al_2Zr,Al_3Zr_2,AlZr,Al_3Zr_4,Al_2Zr_3,AlZr_2,AlZr_3,Al_3Er,Al_2Er,AlEr,Al_2Er_3和AlEr_2。证明在773 K时不存在Al_3Zr_5和Al_4Zr_s相。等温截面由16个单相区,29个二相区和14个三相区组成。 Zr在Al_3Er,Al_2Er,AlEr,Al_2Er_3和Er中的最大固溶度分别约为9、14、4.5、5.4和12 at。%Zr。在773 K下,在该三元体系的其他化合物中未发现明显的固溶性。在当前工作中未发现三元化合物。

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