High-temperature magnetic properties of SmCo6.7-xCu0.6Tix magnets

I. A. Al-Omari, J. Shobaki, R. Skomski, D. Leslie-Pelecky, J. Zhou, D. J. Sellmyer

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Magnetic properties of SmCo6.7-xCu0.6Tix Magnets (x = 0.25 and 0.30) are studied as a function of milling time and temperature. The samples were prepared by two methods: first by arc-melting and milling, and second by mechanical alloying from powders and subsequent annealing. The X-ray diffraction analyses show that the samples consist of 1:5 and 2:17 phases. Magnetic measurements show that the coercivity for samples prepared by arc-melting and milling increases with increase in milling time and it reaches a maximum of 8.1 kOe for x = 0.30 and 5.3 kOe for x = 0.25, and then decreases for both samples. The coercivities for the sample with x = 0.30 are higher than the coercivities for the sample with x = 0.25 for all milling times. High-temperature vibrating sample magnetometer magnetic measurements show that the coercivity for all samples decreases with increasing temperature from room temperature to 600°C. The sample prepared by mechanical alloying has higher coercivity (20 kOe at room temperature) than that prepared by arc-melting and milling for all temperatures under investigation. These materials have moderate energy products (1-10 MG Oe) and can be used for high-temperature magnetic applications.

Original languageEnglish
Pages (from-to)107-111
Number of pages5
JournalPhysica B: Physics of Condensed Matter
Volume321
Issue number1-4
DOIs
Publication statusPublished - Aug 2002

Keywords

  • Anisotropy
  • Coercivity
  • Fine-temperature magnetism
  • Milling
  • Permanent magnets

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'High-temperature magnetic properties of SmCo<sub>6.7-x</sub>Cu<sub>0.6</sub>Ti<sub>x</sub> magnets'. Together they form a unique fingerprint.

  • Cite this