Chemical Reactions Induced under Grinding : Application to Synthesis of Lanthanoid Ferrite(Synergy by Microparticulation)

スポンサーリンク

概要

• 論文の詳細を見る

• Mechanical grinding operation has been applied to induce chemical reactions forming lanthanoid-ferrite, LnFeO_3, Ln: La, Sm, Gd, Dy. This mechanochemical process has the peculiarity of kneading Fe_2O_3 particles into the deformable Ln (OH)_3 gel formed from Ln_2O_3 and a small amount of H_2O in organic liquids. Under the grinding process, the synthesis reactions progresses through the formation of mixed agglomerates with the size less than 2μm,the formation of hydroxide complex, LnFeO(OH)_4, and the stress-induced dehydration-condensation resulting in LnFeO_3. The crystallinity of the synthesized LnFeO_3 can be controlled in amorphous to well-crystallized perovskite phase by the post heat-treatment. The influences of grinding stress and water content have been discussed.

• 一般社団法人日本機械学会の論文
• 2006-09-19

著者

• Mantoku Norie

  Graduate School Ibaraki University

• Mitachi Sensyu

  Fine Ceramics Laboratory Hokko Chemical Industries

• Abe Osami

  The Research Center for Superplasticity, Faculty of Engineering, Ibaraki University

• Abe Osami

  The Research Center For Superplasticity Faculty Of Engineering Ibaraki University

関連論文

• Mechanochemical reduction of manganese dioxide by grinding in organic vapors
• Chemical Reactions Induced under Grinding : Application to Synthesis of Lanthanoid Ferrite(Synergy by Microparticulation)

スポンサーリンク