• 제목/요약/키워드: mechanochemical shynthesis

검색결과 1건 처리시간 0.016초

Mechanochemical Synthesis of Zinc Ferrite, $ZnFe_2O_4$

  • Sawada, Yutaka;Iizumi, Kiyokata;Kuramochi, Tomokazu;Wang, Mei-Han;Sun, Li-Xian;Okada, Shigeru;Kudou, Kunio;Shishido, Toetsu;Matsushita, Jun-Ichi
    • 한국분말야금학회:학술대회논문집
    • /
    • 한국분말야금학회 2006년도 Extended Abstracts of 2006 POWDER METALLURGY World Congress Part2
    • /
    • pp.971-972
    • /
    • 2006
  • Mechanochemical synthesis of zinc ferrite, $ZnFe_2O_4$, was attempted from a powder mixture of iron (III) oxide, alpha-$Fe_2O_3$ and zinc (II) oxide, ZnO. Nanocrystalline zinc ferrite, $ZnFe_2O_4$ powders were successfully synthesized only bymilling for 30 hours. Evidence of the $ZnFe_2O_4$ formation was absent for the powders milled for 10 and 20 hours; the milling lowered the crystallinity of the starting materials. Heating after milling enhanced the formation of $ZnFe_2O_4$, crystal growth of $ZnFe_2O_4$ and the unreacted starting materials. The unreacted starting materials decreased their amounts by heating at higher temperatures.

  • PDF