Издательство СО РАН

Издательство СО РАН

Адрес Издательства СО РАН: Россия, 630090, а/я 187
Новосибирск, Морской пр., 2

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Яндекс.Метрика

Поиск по журналу

Химия в интересах устойчивого развития

2009 год, номер 6

Mechanochemical Synthesis of Alumina-Zirconia Nanocomposite Powder Containing Metastable Phases

T. Dallali isfahani1, J. Javadpour2, A. Khavandi3, H. Rezaie4, M. Goodarzi5
1 Iran University of Science and Technology, taghiisfahani@yahoo.com
2 Iran University of Science and Technology
3 Iran University of Science and Technology
4 Iran University of Science and Technology
5 Iran University of Science and Technology
Ключевые слова: mechanochemical activation, alumina-zirconia nanocomposite powder, metastable phases
Страницы: 573-576

Аннотация

Alumina-zirconia nanocomposite powder with a particle size around 50 nm was synthesised by mechanochemical activation. Milled powders consisted of CaO and XRD amorphous aluminium and zirconium chloride phases. After annealing the milled powder at 360 oC displacement reactions occurred and ZrO2 and Al2O3 nanoparticles were formed in a CaCl2 matrix which was removed by washing. DTA, XRD and SEM analysis were applied to characterise the powders. The formation of cubic zirconia and α-alumina were observed at very low temperatures.