Phase relationships in the Gd–Co–Al ternary system at 500°C

Zhengfei Gu Faculty of Information Materials Science and Engineering, Guilin University of Electronic Technology, Guangxi 541004, China; Guangxi Key Lab of Information Materials, Guilin University of Electronic Technology, Guangxi 541004, ChinaCorrespondence[email protected]

Gang Cheng Faculty of Information Materials Science and Engineering, Guilin University of Electronic Technology, Guangxi 541004, China; Guangxi Key Lab of Information Materials, Guilin University of Electronic Technology, Guangxi 541004, China

Bo Zhou Faculty of Information Materials Science and Engineering, Guilin University of Electronic Technology, Guangxi 541004, China

Jun Cheng Faculty of Information Materials Science and Engineering, Guilin University of Electronic Technology, Guangxi 541004, China; Guangxi Key Lab of Information Materials, Guilin University of Electronic Technology, Guangxi 541004, China

Minhong Jiang Faculty of Information Materials Science and Engineering, Guilin University of Electronic Technology, Guangxi 541004, China; Guangxi Key Lab of Information Materials, Guilin University of Electronic Technology, Guangxi 541004, China

Abstract

The phase relationships in the Gd–Co–Al ternary system at 500°C have been investigated mainly by X-ray diffraction, scanning electron microscopy, and energy dispersion spectroscopy. The existence of two ternary compounds GdCo_0.74Al_1.26 and Gd₂Co₂Al has been confirmed. Twenty-two single-phase regions (including solid solution regions of the binary compounds), 43 two-phase regions, and 22 three-phase regions were found to exist at this isothermal section. In this work, no new binary or ternary phase was found.

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Acknowledgement

This work was supported by the National Nature Science Foundation of China (Grant No. 50261002, 50661002).

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Phase relationships in the Gd–Co–Al ternary system at 500°C

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