Abstract
Current–voltage characteristics of ion emission during mechanical fracture of polymer films (polyethylene terephthalate, polyimide, polyphenylene ether) in high vacuum have been studied. Positive ions appear at a pulling potential of 100–200 V, after which their number monotonically increases with potential until saturation. Negative ion emission starts at <<200 V and exhibits resonance behavior within the 0–50 V interval, whereby the resonance peak position depends on the nature of polymer. The resonance character of negative ion emission found corresponds to the proposed physical mechanism of ion formation.
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This work was supported in part by the Russian Foundation for Basic Research, project no. 18-08-00401 A.
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Translated by P. Pozdeev
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Pakhotin, V.A., Boiko, Y.M. Anomalous Characteristics of Ion Emission during Fracture of Polymers. Tech. Phys. Lett. 47, 88–91 (2021). https://doi.org/10.1134/S1063785021010259
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DOI: https://doi.org/10.1134/S1063785021010259