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<p>The rare earth–iron–transition metal systems are of increasing interest in the search for novel permanent magnet phases. This work reports on the solidification behavior, phase equilibria and stability range of solid phases in the ternary Ce-Fe-Ti system, focusing on the iron-rich region (&gt; 65 at.% Fe) of the isothermal section at 1000&#xa0;°C. Two ternary phases Ce<sub>1.03</sub>Fe<sub>12-x</sub>Ti<sub>x</sub> (x = 0.87–1.02) with ThMn<sub>12</sub> structure type and Ce<sub>3.06</sub>Fe<sub>27.6</sub>Ti<sub>1.4</sub> with Nd<sub>3</sub>Fe<sub>29</sub> structure type were observed. Magnetic measurements of Ce<sub>1.03</sub>Fe<sub>12-x</sub>Ti<sub>x</sub> and Ce<sub>3.06</sub>Fe<sub>27.6</sub>Ti<sub>1.4</sub> revealed ferromagnetic ordering with Curie temperatures of 550&#xa0;K and 327&#xa0;K, respectively.</p>

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The Ce-Fe-Ti System: Phase Equilibria in the Fe-rich Corner at 1000 °C

  • 期刊论文

  • 发表日期：

    2025年6月8日

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  • Eunjeong Kim,
  • Alexander E. Wilson-Heid,
  • Joseph Boro,
  • Alexander A. Baker,
  • Ashley N. Lee,
  • Martin Kunz,
  • Alfred Amon

摘要

The rare earth–iron–transition metal systems are of increasing interest in the search for novel permanent magnet phases. This work reports on the solidification behavior, phase equilibria and stability range of solid phases in the ternary Ce-Fe-Ti system, focusing on the iron-rich region (> 65 at.% Fe) of the isothermal section at 1000 °C. Two ternary phases Ce1.03Fe12-xTix (x = 0.87–1.02) with ThMn12 structure type and Ce3.06Fe27.6Ti1.4 with Nd3Fe29 structure type were observed. Magnetic measurements of Ce1.03Fe12-xTix and Ce3.06Fe27.6Ti1.4 revealed ferromagnetic ordering with Curie temperatures of 550 K and 327 K, respectively.