アルカリ土類金属アルミネート間の固溶関係

伊藤 祐敏, 坂野 史朗, 鈴木 一孝, 稲垣 道夫

doi:10.2109/jcersj1950.87.1007_344

書誌事項

タイトル別名

Solid Solubilities in the Alkaline-Earth Metal Aluminates
アルカリドルイキンゾクアルミネートカンノコヨウカンケイ

公開日: 1979

DOI

10.2109/jcersj1950.87.1007_344

公開者: 公益社団法人日本セラミックス協会

この論文をさがす

説明

The solid solubilities in the alkaline-earth metal aluminates with the stuffed tridymite structure (CaAl₂O₄, SrAl₂O₄ and BaAl₂O₄) were investigated on heating at 900°-1500°C in air. The results obtained are summarized as follows:<br>(1) The soild solubilities in these aluminates, CaAl₂O₄, SrAl₂O₄ and BaAl₂O₄, depend on the difference in the linkage of AlO₄-tetrahedra in the stuffed tridymite structure. Two types of solid solution, BaAl₂O₄-type and CaAl₂O₄-type, formed in the binary and the ternary systems in CaAl₂O₄-SrAl₂O₄-BaAl₂O₄.<br>(2) The BaAl₂O₄-type and the CaAl₂O₄-type structures are closely related to the average ionic radius of alkaline-earth metals which were stuffed in the channels made up of AlO₄-tetrahedra. In the range of 1.14 to 1.21Å, the CaAl₂O₄-type structure was formed, and from 1.23 to 1.50Å the BaAl₂O₄-type was formed.<br>(3) Below 1.37Å of the average ionic radius of alkaline-earth metals, the BaAl₂O₄-type structure slightly distored to the α-SrAl₂O₄-type structure at low temperatures.

収録刊行物

窯業協會誌

窯業協會誌 87 (1007), 344-349, 1979

公益社団法人日本セラミックス協会

キーワード

詳細情報詳細情報について

書き出し

問題の指摘