Electrical breakdown channel locality in high voltage pulse breakage

Zuo, Weiran, Shi, Fengnian and Manlapig, Emmy (2014) Electrical breakdown channel locality in high voltage pulse breakage. Minerals Engineering, 69 196-204. doi:10.1016/j.mineng.2014.08.006

Author Zuo, Weiran
Shi, Fengnian
Manlapig, Emmy
Title Electrical breakdown channel locality in high voltage pulse breakage
Journal name Minerals Engineering   Check publisher's open access policy
ISSN 0892-6875
Publication date 2014
Sub-type Article (original research)
DOI 10.1016/j.mineng.2014.08.006
Open Access Status
Volume 69
Start page 196
End page 204
Total pages 9
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Collection year 2015
Language eng
Abstract An experimental study was conducted, in which synthetic samples made of construction grout and pyrite grains were subjected to high voltage pulses in a single-particle and single-pulse mode, in order to investigate the effect of electrical breakdown channel locality on particle breakage behaviour. The data confirm that the locality of electrical breakdown channel dominates the breakage response of particles. When a breakdown channel passes along the axis of a particle, it generates a finer product and produces more cracks/microcracks on the fragments. The electrical breakdown channel locality is controlled by the grains of minerals with high conductivity/permittivity and their location in a particle under the identical machine settings. The outcomes using the synthetic samples are helpful in understanding the breakage behaviour of natural ore particles in electrical comminution.
Keyword High voltage pulse breakage
Electrical breakdown channel
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
Sustainable Minerals Institute Publications
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Citation counts: TR Web of Science Citation Count  Cited 7 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 7 times in Scopus Article | Citations
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Created: Thu, 02 Oct 2014, 10:57:04 EST by Karen Holtham on behalf of Julius Kruttschnitt Mineral Research Centre