New cobalt-based intermetallic compound Co2VMn with B2 structure and phase equilibria in the Co-V-Mn ternary system

J. J. Ruan, C. P. Wang, S. Y. Yang, R. Kainuma, X. J. Liu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The phase equilibria in the Co-V-Mn ternary system, the magnetic properties and the phase stability of the new ternary intermetallic compound Co 2VMn were investigated by means of electron probe microanalyzer, X-ray diffraction, differential scanning calorimetry and the vibrating sample magnetometer. Four isothermal sections of the Co-V-Mn ternary system at 1073 K, 1273 K, 1373 K and 1473 K were experimentally established, and a new ternary intermetallic compound named Co2VMn was found in the Co-V-Mn system. The Curie temperature of the Co2VMn phase was found to be about 670 K. In addition, the saturation magnetization at room temperature for alloy with B2 structure was measured to be about 145.1 emu/g, while the coercivity was about 2.8 Oe. The newly determined phase equilibria in this system will provide important information for the development of the Co-based functional materials and for the thermodynamic assessment of the Co-V-Mn ternary system.

Original languageEnglish
Pages (from-to)998-1005
Number of pages8
JournalJournal of Alloys and Compounds
Volume615
DOIs
Publication statusPublished - 2014 Dec 5

Keywords

  • Curie temperature
  • Magnetization
  • Metals and alloys
  • Microstructure
  • Phase diagrams

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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