The Formation of κ and κ′-Al<SUB>2</SUB>O<SUB>3</SUB> from the Dehydration of Tohdite 5Al<SUB>2</SUB>O<SUB>3</SUB>·H<SUB>2</SUB>O

スポンサーリンク

概要

• 論文の詳細を見る

• The dehydration of tohdite 5Al<SUB>2</SUB>O<SUB>3</SUB>·H<SUB>2</SUB>O is well followed by means of the single-crystal electron-diffraction patterns, the X-ray powder patterns, differential thermal analysis, and the measurement of the density. Thermogravimetric measurements were also performed, both under a normal atmosphere and in a high vacuum. Just after the dehydration, an unstable intermediate phase was obtained; it was denoted as κ′-Al<SUB>2</SUB>O<SUB>3</SUB>(from tohdite). The mechanism of the transformation series:<BR>tohdite→κ′-Al<SUB>2</SUB>O<SUB>3</SUB>→κ-Al<SUB>2</SUB>O<SUB>3</SUB>→α-Al<SUB>2</SUB>O<SUB>3</SUB><BR>was discussed, and some basic data to serve as clues to elucidate the crystal structure of κ′- and κ-Al<SUB>2</SUB>O<SUB>3</SUB> were obtained.

• 公益社団法人 日本化学会の論文

著者

• Okumiya Masataro

  Department of Industrial Chemistry, Facility of Engineering, The University of Tokyo

関連論文

• The Formation of κ and κ′-Al2O3 from the Dehydration of Tohdite 5Al2O3·H2O

スポンサーリンク