Effect of high-voltage discharge on the particle size of hard alloy powders

The effect of high-voltage discharge treatment of Fe–20% TiC and VK6–1% ASUD75 diamond powder mixtures on their particle size and morphology is examined. It is shown that high-voltage discharge treatment in a powder suspension permits substantial refinement in the particle size and increase in the s...

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Published inPowder metallurgy and metal ceramics Vol. 49; no. 11-12; pp. 630 - 636
Main Authors Sizonenko, O. N., Baglyuk, G. A., Raichenko, A. I., Bogatyreva, G. P., Oleinik, N. A., Taftai, É. I., Lipyan, E. V., Torpakov, A. S.
Format Journal Article
LanguageEnglish
Published Boston Springer US 01.03.2011
Springer
Springer Nature B.V
Subjects
Alloy powders
Alloys
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Discharge
Glass
Hydrocarbons
Iron
Liquids
Materials Science
Metallic Materials
Natural Materials
Particle size
Powder metallurgy
Powders
Shape factor
particle size
electric discharge
powder
suspension
grinding
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Summary:The effect of high-voltage discharge treatment of Fe–20% TiC and VK6–1% ASUD75 diamond powder mixtures on their particle size and morphology is examined. It is shown that high-voltage discharge treatment in a powder suspension permits substantial refinement in the particle size and increase in the shape factor and specific surface area. A near-linear dependence is established between the total treatment energy and powder particle size. It is shown that hydrocarbon liquid is much more efficient than water as a working medium.
Bibliography:ObjectType-Article-1
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ISSN:1068-1302
1573-9066
DOI:10.1007/s11106-011-9280-6