Title :
Effect of electron beam radiation on permittivity in PMMA
Author :
Zheng, Feihu ; Yewen Zhang ; Xiaoqing Zhang ; Xiao, Chun ; Fu, Shangyi ; Gong, Bin ; Zhu, Jianwei
Author_Institution :
Pohl Inst. of Solid State Phys., Tongji Univ., Shanghai, China
Abstract :
The effect of electron beam radiation on permittivity of polymethyl methacrylate (PMMA) samples is investigated. Experimental results show that electron beam radiation makes permittivity of the samples vary visibly. Combining Wakino´s model of permittivity of mixture materials, Clausius-Mosotti equation is utilized to analyze the variation of permittivity in PMMA samples after electron beam radiation. Electron beam radiation makes the increase of porosity in samples and thus decreases permittivity. Contrarily, accumulation of injected space charges increases permittivity.
Keywords :
electron beam effects; permittivity; polymers; porosity; space charge; Clausius-Mosotti equation; PMMA; Wakino model; electron beam radiation effect; injected space charge accumulation; mixture materials; permittivity; polymethyl methacrylate samples; porosity; Aging; Dielectric materials; Dielectrics and electrical insulation; Electron beams; Equations; Frequency; Permittivity; Plastic insulation; Polymers; Space charge;
Conference_Titel :
Electrets, 2005. ISE-12. 2005 12th International Symposium on
Print_ISBN :
0-7803-9116-0
DOI :
10.1109/ISE.2005.1612397
