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THE DEVELOPMENT OF ANHYDROUS-BASED SELFPROPAGATING HIGH-TEMPERATURE SYNTHESIS (SHS) METHOD FOR THE CORUNDUM POWDER PRODUCTION
https://doi.org/10.17073/1683-4518-2013-8-20-26
Abstract
The development of both corundum phase and crystal size, as well as of the crystallization degree, specific surface, and micro-structure is shown in the article. The information on the powder's isolated yield obtained in course of burning both on the surface and inside the samples using anhydrous-based SHS method with two kinds of fuels ― citric acid and sucrose is given. The burning inside the samples promotes larger the corundum phase development independently of kind of the fuel. The citric acid favors the crystal growth and crystallization degree. The larger amount of released combustion heat and its larger storage inside the sample in course of the burning when the citric acid is used favors the development of coarse microstructure with larger pores inside the powder, with a little larger specific surface (26,5‒25,1 м2/gram) comparing to that (25,6‒23,9 м2/gram) for the powder obtaining in course of the burning when sucrose is used, and with larger corundum powder isolated yield respectively. Ill. 3. Ref. 15. Tab. 7.
About the Author
A. V. HmelovLatvia
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Supplementary files
For citation: Hmelov A.V. THE DEVELOPMENT OF ANHYDROUS-BASED SELFPROPAGATING HIGH-TEMPERATURE SYNTHESIS (SHS) METHOD FOR THE CORUNDUM POWDER PRODUCTION. NOVYE OGNEUPORY (NEW REFRACTORIES). 2013;1(8):20-26. https://doi.org/10.17073/1683-4518-2013-8-20-26
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