Phase transitions and dimensional and morphological changes in an "aluminum hydroxide-alumina" system under a shock-wave action

Описание

Тип публикации: статья из журнала

Год издания: 2005

Идентификатор DOI: 10.1007/s10573-005-0011-5

Ключевые слова: shock-wave action; phase transitions; "aluminum hydroxide-alumina" system; nanocrystallite size

Аннотация: A method is proposed to study the sequence of phase transitions in powdered materials under a shock-wave action. It is shown that the "aluminum hydroxide-alumina" system has the following sequence of phase transformations under a shock-wave action: bayerite --> boehmite --> gamma-Al2O3 --> alpha-Al2O3. It is found that there are noПоказать полностьюtransitional high-temperature modifications of alumina. A method is developed for obtaining a submicron alumina powder, which allows obtaining materials with a controlled phase composition, including a thermodynamically stable a-modification of Al2O3. The specific features of the morphological structure and the phase and structural characteristics of powders after a shock-wave action are considered.

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Издание

Журнал: COMBUSTION EXPLOSION AND SHOCK WAVES

Выпуск журнала: Vol. 41, Is. 1

Номера страниц: 97-105

ISSN журнала: 00105082

Место издания: NEW YORK

Издатель: CONSULTANTS BUREAU

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