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The study on ablation resistance of epoxy resin based composite in vacuum

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5 Author(s)
Wei Shen ; State Key Lab. of Electr. Insulation & Power Equip., Xi''an Jiaotong Univ., Xi''an, China ; Cheng Pan ; Kai Wu ; Man Ding
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This paper mainly studies the influence of nano/micro Al2O3 and Al(OH)3 in epoxy composites on the ablation resistance, by quantifying the mass loss and observing the surface topography of sample after several times surface flashover in vacuum (the peak value is approximately 10kA, and the wave front is 8us, wave tail is 20us(8/20us)). The experimental results show that the addition of inorganic filler to epoxy resin is useful for improving the ablation resistance. The performance of Al(OH)3 filler is much better than Al2O3. Nano-particles are much smaller and dispersed more uniformly than micro-particles. Thus the composite with nano aluminium hydroxide is of better heat dissipation. But the blocking effect of adding micro-particles is better than adding nano-particles.

Published in:
Solid Dielectrics (ICSD), 2010 10th IEEE International Conference on

Date of Conference: 4-9 July 2010

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