THERMAL STUDIES ON IRON TITANATE SPINEL

被引：5

作者：

BASAK, D ^{[1
]}

GHOSE, J ^{[1
]}

机构：

[1] INDIAN INST TECHNOL,DEPT CHEM,KHARAGPUR 721302,W BENGAL,INDIA

来源：

JOURNAL OF THERMAL ANALYSIS | 1991年 / 37卷 / 05期

关键词：

D O I：

10.1007/BF01932791

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Thermogravimetry and X-ray analysis show that the iron titanate spinel sample is non-stoichiometric and has the formula Fe1.76Ti1.12O4. On heating in air below 573 K, it undergoes surface oxidation and on further heating DTA and TG show that it undergoes bulk oxidation in three stages. X-ray analysis and resistivity measurements show that while octahedral Fe2+ ions are oxidised, the spinel structure is retained and during Fe(tet)2+ oxidation a metastable phase is formed and when the oxidation is complete, the pseudobrookite phase is formed.

引用

页码：935 / 943

页数：9

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