• Title/Summary/Keyword: 소결자석

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Properties of Sr-Ferrites Prepared by Spark Plasma Sintering Process (스파크 플라즈마 소결법으로 제조된 Sr-페라이트의 특성)

  • Roh, J.S.;Oh, M.H.
    • Journal of the Korean Magnetics Society
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    • v.13 no.1
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    • pp.29-35
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    • 2003
  • Anisotropic Sr-ferrites were prepared by the spark plasma sintering process (SPS). The Ferrite particles were oriented and densified during sintering process, and the anisotropic ferrites were manufactured at low sintering temperature and a remarkable short time processing by SPS method. It was showed that the anisotropy of ferrite particles at the specimen outer side was more higher than that at the specimen center, and it seems possible that the orientation of ferrite particles was related to DC current. Magnetic and physical properties of sintered Sr-ferrites are Br = 3.15 kG, iHc : 2.67 kOe, and density : 5.033 g/cm$^3$ when the samples were sintered for 8 minutes at 106$0^{\circ}C$.