Abstract:
The phase, dispersive, and morphological features of an aluminum oxide powder produced by explosive synthesis are examined experimentally. It is shown that the particle-size distribution has three distinct maxima, which are due to different combustion regimes. The relationship between the sizes and morphology of the starting powder and the product is determined. Considerable attention is given to a study of the ultrafine fraction of the product powder. The ultrafine particles are shown to have a regular spherical shape, and sinters are not revealed. Besides spherical particles, the synthesized powder contains faceted crystals. X-ray phase analysis of the ultrafine fraction of the synthesized powders shows that this fraction consists only of the metastable phases of the oxide – the δ- or oxynitride modifications. The δ-modification differs from that described in the literature.
Citation:
A. A. Bukaemskii, A. G. Beloshapko, A. P. Puzyr, “Physicochemical properties of Al2O3 powder produced by explosive synthesis”, Fizika Goreniya i Vzryva, 36:5 (2000), 119–125; Combustion, Explosion and Shock Waves, 36:5 (2000), 660–666
\Bibitem{BukBelPuz00}
\by A.~A.~Bukaemskii, A.~G.~Beloshapko, A.~P.~Puzyr
\paper Physicochemical properties of Al$_2$O$_3$ powder produced by explosive synthesis
\jour Fizika Goreniya i Vzryva
\yr 2000
\vol 36
\issue 5
\pages 119--125
\mathnet{http://mi.mathnet.ru/fgv2247}
\elib{https://elibrary.ru/item.asp?id=17358798}
\transl
\jour Combustion, Explosion and Shock Waves
\yr 2000
\vol 36
\issue 5
\pages 660--666
\crossref{https://doi.org/10.1007/BF02699530}
Linking options:
https://www.mathnet.ru/eng/fgv2247
https://www.mathnet.ru/eng/fgv/v36/i5/p119
This publication is cited in the following 4 articles:
Aditya Kadian, Sampann Arora, Akshath Sharma, Girish M. Joshi, Mayank Pandey, Anji Polu Reddy, M.J. Joshi, P. Thomas, “Improved dielectric constant of thermoplastic blend as a function of alumina loading”, Measurement, 90 (2016), 461
A. G. Zholnin, I. V. Kovaleva, E. G. Grigoryev, E. A. Olevsky, “Production of superhard corundum under spark-plasma sintering of aluminum oxide nanopowders”, Inorg. Mater. Appl. Res., 7:3 (2016), 419
M Zakeri, M R Rahimipour, B Jamal Abbasi, “Synthesis of nanostructure tetragonal ZrO2by high energy ball milling”, Materials Technology, 28:4 (2013), 181
A. A. Bukaemskii, E. N. Fedorova, “Explosive compaction and low-temperature sintering of alumina nanopowders”, Combustion, Explosion and Shock Waves, 44:6 (2008), 717–728