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In order to avoid the surface discharge of sensitive components on spacecraft, it is very important to understand the mechanism of surface flashover characteristics of the insulator materials, such as polyimide (PI). This paper studied the influence of electron beam irradiation on the negative polarity dc surface flashover characteristics of PI plate specimen in vacuum. Results showed that the flashover...
Researching the effects on different temperature of dc surface flashover characteristics on solid insulating dielectric in vacuum what can improve the reliability applied to complex environments. In this paper, we use the self-made polyimide (PI) sample as the object of study. The dc surface flashover characteristics at different temperatures (193–353K) are experimental studied, with theoretical analysis...
In this paper, the effects on direct current (dc) surface flashover characteristics of polyimide (PI) in vacuum are experimental studied in the case of electron beam irradiation, accompanied with the theoretical analysis. The results show that the flashover voltage under 0.5∼20keV beam electron radiation is higher than no radiation case; the higher energy of the electron is, the higher flashover voltage...
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