Investigation on the 773 K isothermal section of La-Fe-Sn ternary systems by X-ray powder diffraction

• Published in: Rare metals Vol. 29; no. 6; pp. 567 - 571
• Main Authors: Chen, Xiang, Zhuang, Yinghong, Chen, Yungui
• Format: Journal Article
• Language: English
• Published: Beijing University of Science and Technology Beijing 01.12.2010; Springer Nature B.V; Key Laboratory of Nonferrous Metal and New Processing Technology of Materials Ministry of Education of China, Guangxi University, Nanning 530004, China; Department of Physics and Electronic Information Engineering, Neijiang Teachers College, Neijiang 641002, China%Key Laboratory of Nonferrous Metal and New Processing Technology of Materials Ministry of Education of China, Guangxi University, Nanning 530004, China%Department of Metallic Materials Engineering, Sichuan University, Chengdu 610065, China
• Subjects: Binary alloys; Biomaterials; Chemistry and Materials Science; Crystal structure; Diffraction; Energy; Intermetallic compounds; Iron; Materials Engineering; Materials Science; Metallic Materials; Nanoscale Science and Technology; Phase diagrams; Phase relationships; Physical Chemistry; Ternary systems; X-rays; X射线; 三元系等温截面; 三元系统; 粉末衍射仪; 金属间化合物; X-ray diffraction; intermetallics; quenching; phase diagrams; intermetallies
• ISSN: 1001-0521; 1867-7185
• DOI: 10.1007/s12598-010-0170-8

The 773 K isothermal section of the La-Fe-Sn ternary system was investigated and constructed by X-ray powder diffraction（XRD）.The existence of two reported ternary intermetallic compounds,La6Fe13Sn and La3FeSn6,is confirmed in this work.Compared with other R-Fe-Sn phase diagrams（R = Pr and Sm）,the binary alloys Fe3Sn and Fe5Sn3 are not present.The compound Fe3Sn2 was observed from the XRD pattern of Fe3Sn2 samples,but it is not an equilibrium phase at 773 K and decomposes into Fe and FeSn phases completely for a longer heat treated time.Up to now,the crystal structure data of La2Sn3 has not been reported,so the X-ray pattern of La2Sn3 was only estimated.The phase relationship for this compound was drawn by a dotted line.