Some Effects of Nonuniform Fields on Dielectrics
作者:
Herbert Ackland Pohl,
期刊:
Journal of Applied Physics
(AIP Available online 1958)
卷期:
Volume 29,
issue 8
页码: 1182-1188
ISSN:0021-8979
年代: 1958
DOI:10.1063/1.1723398
出版商: AIP
数据来源: AIP
摘要:
Some of the more interesting effects of nonuniform electric fields are described in this report. Experimental and theoretical studies show the effects to be rather striking for particles larger than molecular size. The results show that the effect can be used to produce a fairly efficient pumping action of nonconducting liquids, to cause continuous and easily measureable separations in coarse suspensions, to cause selective precipitation, and to produce mixing.By this means, liquids may be thrown several feet into the air with an electromechanical efficiency of about 25%. A separation factor of at least 2.5 in continuous separatory operation may be produced in a suspension of polyvinyl chloride in carbon tetrachloride‐benzene mixture. Suspensions of polar materials in less polar liquids may be either dispersed or precipitated. In one interesting ``demonstration'' type experiment, drops were ``hung'' in mid‐air.
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