The preparation of yttrium oxide from a Y(N 2H 3COO) 3 · 3H 2O precursor in various atmospheres

The thermal decomposition of yttrium hydrazidocarbonate trihydrate Y(N 2H 3COO) 3 · 3H 2O has been studied in the temperature range 25–1400°C. The influence of inert and oxidative atmospheres, e.g. argon, carbon dioxide and air, on the course of the thermal decomposition was determined. After dehydr...

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Bibliographic Details
Published inThermochimica acta Vol. 258; pp. 135 - 144
Main Authors Rahten, A., Mac̆ek, J., Novosel, B.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1995
Subjects
DTA
EGA
Yttrium hydrazidocarbonate trihydrate
Yttrium oxide
DTA
TG
Yttrium hydrazidocarbonate trihydrate
Yttrium oxide
EGA
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Summary:The thermal decomposition of yttrium hydrazidocarbonate trihydrate Y(N 2H 3COO) 3 · 3H 2O has been studied in the temperature range 25–1400°C. The influence of inert and oxidative atmospheres, e.g. argon, carbon dioxide and air, on the course of the thermal decomposition was determined. After dehydration to the anhydrous compound, the decomposition proceeds through several decomposition steps to yttrium oxide. In air, a pure high temperature C form of this oxide is isolated at a relatively low temperature, e.g. 708°C. The same end product is obtained in carbon dioxide, albeit at higher temperatures, but in argon the yttrium oxide is mixed with amorphous carbon. The surface area and other particulate properties are substantially dependent on the heating programme of the sample.
ISSN:0040-6031
1872-762X
DOI:10.1016/0040-6031(94)02245-J