Fractoemission from single‐crystal pentaerythritol tetranitrate
作者:
M. H. Miles,
J. T. Dickinson,
L. C. Jensen,
期刊:
Journal of Applied Physics
(AIP Available online 1985)
卷期:
Volume 57,
issue 11
页码: 5048-5055
ISSN:0021-8979
年代: 1985
DOI:10.1063/1.335282
出版商: AIP
数据来源: AIP
摘要:
The emission of electrons, photons, and positive ions was monitored during three‐point bending, compression, and fast compression (impact loading) of single‐crystal pentaerythritol tetranitrate (PETN). The emission appears to be fracture mode dependent with negligible emission from cleavage‐type fracture and very intense electron emission accompanying impact. Possible causes of this enhanced emission are discussed in terms of shear effects and frictional grinding of the crystal fragments. Evidence of a microdischarge (electrical breakdown between fracture surfaces) during impact loading of the crystals is presented.
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