Phase relationships in the ${\text{CeFe}}_8{\text{Co}}_3{\text{Ti}}_{1-\text{y}}{\text{Si}}_{\text{y}}$ system

Journal Article · Fri Apr 07 04:00:00 UTC 2017 · Journal of Alloys and Compounds

DOI: https://doi.org/10.1016/j.jallcom.2017.04.048 · OSTI ID:1352773

Conner, B. S. ^[1]; McGuire, M. A. ^[1]; Susner, M. A. ^[1]; Sales, B. C. ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division

We investigated the phase formation behavior of the nominal CeFe₈Co₃Ti_1-ySi_y system for 0 ≤ y ≤ 0.6 by powder x-ray diffraction and scanning electron microscopy with energy dispersive x-ray spectroscopy for ingots formed by arc-melting then annealing at 1000 °C and quenching to room temperature. The ingots are seen to nearly single phase for y ≤ 0.4 and are multi-phase for y ≥ 0.5 though a compound of the ThMn₁₂ type does indeed form for all values of y. We also measured the saturation magnetizations (M_s), Curie temperatures (T_C), and magnetic anisotropy fields (H_a) for the y ≤ 0.4 samples and the values of Ms and Ha appear to be nearly identical for all y 0.4. TC, but, is seen to increase about 20 °C in this range for increasing y.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1352773
• Journal Information: Journal of Alloys and Compounds, Journal Name: Journal of Alloys and Compounds Journal Issue: C Vol. 712; ISSN 0925-8388
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English