Mechanochemical syntheses of perovskite KMIIF3 with cubic structure (MII = Mg, Ca, Mn, Fe, Co, Ni, and Zn)

Jaeryeong Lee, Heeyoung Shin, Jaechun Lee, Hunsaeng Chung, Qiwu Zhang, Fumio Saito

研究成果: Article査読

28 被引用数 (Scopus)

抄録

An equi-molar mixture of potassium fluoride (KF) and one of alkaline-earth or transition metal fluoride MIIF2 (MII= Mg, Ca, Mn, Fe, Co, Ni, and Zn) was ground in air by using a planetary ball mill to investigate mechanochemical (MC) synthesis of fluoroperovskites KMIIF3. Rietveld refinement for the ground mixtures was conducted on the basis of XRD data to inquire into structural properties of the KMIIF3 synthesized mechanochemically. The synthesis reactions proceed with grinding time, and ultimately a single phase of cubic structural KMIIF3 (Pm3m, Z = 1) was obtained after grinding for 21.6 ks. The values of unit cell parameter, a, of KMIIF3 synthesized by MC reaction, are slightly larger than those by solid-state reaction at high temperature, and this may be attributed to structural distortions caused by intensive grinding.

本文言語English
ページ(範囲)1457-1460
ページ数4
ジャーナルMaterials Transactions
44
7
DOI
出版ステータスPublished - 2003 7月

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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