Synthesis and magnetic properties of Sr1-x (La, AM)x-M type ferrites (AM-Na, K)

Ryo Murakami, Hirofumi Kakuta, Hitoshi Takamura, Terumi Tanaka, Masuo Okada, Masakatsu Fukuda, Masanori Sano, Kimiyuki Kamino

Research output: Contribution to journalArticlepeer-review

Abstract

The appeared phases and magnetic properties of Sr1-x(La, AM)x ferrites (AM = Na, K) were studied. The prepared samples having the nominal composition of (Sr1-x·(La, AM)x)O·6Fe2O3, contain α-Fe2O3 phase and M-type ferrite phase. However the single phase of M-type ferrites with nominal compositions of (Sr1-x(La0.5Na0.5)x)O· (6-2x)Fe2O3 and (Sr1-x(La0.7K0.3) x)O·(6-x)Fe2O3, where x = 0.2 ∼ 0.8, was obtained by the selection of a tie-line composition. The c-axis of M-type ferrites became shoter with increasing x. Their magnetizations, Curie temperatures and anisotropy fields decreased with increasing the amount of substitution of La-AM for Sr.

Original languageEnglish
Pages (from-to)990-994
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume43
Issue number8
DOIs
Publication statusPublished - 1996 Aug

Keywords

  • Lanthanum-potassium ferrites
  • Lanthanum-sodium ferrites
  • M-type ferrites
  • Strontium ferrites

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

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