Crystal Structure and Phase Relations of the R{sub 2}Fe{sub 14}B–Y{sub 2}Fe{sub 14}B (R = Nd and Pr) Systems

Journal Article · Mon Jan 15 00:00:00 EST 2018 · Journal of Superconductivity and Novel Magnetism

DOI:https://doi.org/10.1007/S10948-017-4214-2· OSTI ID:22774139

Gu, Zhengfei; Ma, Dongdong; Xu, Chengfu; Liu, Tao; Cheng, Linyi; Du, Yusong ^[1]; Zhang, Wenfeng ^[2]

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1. Guilin University of Electronic Technology, School of Material Science and Engineering (China)
2. Guilin University of Aerospace Technology, School of Mechanical Engineering (China)

The phase relations in the R{sub 2}Fe{sub 14}B–Y{sub 2}Fe{sub 14}B (R = Nd and Pr) systems have been investigated by means of X-ray powder diffraction (XRD), differential thermal analysis (DTA), and scanning electron microscopy (SEM) equipped with energy-dispersive X-ray spectroscopy (EDS). Crystal structure parameters for all studied alloys (R{sub 1−x}Y{sub x}){sub 2}Fe{sub 14}B (R = Nd and Pr) have been determined by Rietveld refinements. Their structures are similar to that of the Nd{sub 2}Fe{sub 14}B phase with tetragonal structure (space group P4{sub 2}/mnm). The continuous solid solutions are formed in these systems. The lattice parameters and unit cell volumes of the (R{sub 1−x}Y{sub x}){sub 2}Fe{sub 14}B (R = Nd and Pr) solid solutions decrease gradually with increasing Y content. The DTA results present that the decomposition temperature of (R{sub 1−x}Y{sub x}){sub 2}Fe{sub 14}B (R = Nd and Pr) rises with x ranging from 0 to 1.0. The vertical sections of the R{sub 2}Fe{sub 14}B–Y{sub 2}Fe{sub 14}B (R = Nd and Pr) systems are presented in this work.

• OSTI ID: 22774139
• Journal Information: Journal of Superconductivity and Novel Magnetism, Vol. 31, Issue 1; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2017 Springer Science+Business Media, LLC; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); ISSN 1557-1939
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRYSTAL STRUCTURE
DIFFERENTIAL THERMAL ANALYSIS
LATTICE PARAMETERS
NEODYMIUM ALLOYS
PRASEODYMIUM ALLOYS
SCANNING ELECTRON MICROSCOPY
SOLID SOLUTIONS
SPACE GROUPS
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY