Author:
ZHENG JIAN-XUAN ,XU GUO-XIONG ,
Abstract
A phasediagram of the alloys of the dysprosium-copper binary system has been determined by means of X-ray diffraction and differential thermal analysis techniques. Its constitutional diagram has been constructed. Two eutectic reactions occur at 12 and 83 wt%Cu approximately, and with characteristic temperatures of 808 and 88°C, respectively. At room temperature three stable intermetallic compounds have been found, namely DyCu, DyCu2 and DyCu5. The DyCu and DyCu2 are formed by peritectic reactions at 840 and 885°C respectively, and DyCu5 melt congruently at 97°C. However, another intermetallic compound DyCur forms at 89°C periteetically and decomposes eutectoidally at 848°C as it is cooling slowly. The solid solubility of Dy in Cu is undetectable, and the solid solubility of Cu in Dy is less than 0.2 wt%Cu at room temperature.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
6 articles.
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1. Thermodynamic and ab initio investigation of the Cu–Dy system;Calphad;2009-09
2. Thermodynamic assessment of the Cu–Dy binary system;Journal of Alloys and Compounds;2009-02
3. 2.6.2.1.1.4 RCu{5};Compounds of Rare Earth Elements with Main Group Elements. Part 1
4. DyCu{2} - LuCu{2};Compounds of Rare Earth Elements with Main Group Elements. Part 1
5. CeCu - DyCu;Compounds of Rare Earth Elements with Main Group Elements. Part 1