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Title: Dielectric Properties of Epoxy Resin Fly Ash Composite
Authors: Pattanaik, A
Bhuyan, S K
Samal, S K
Behera, A
Mishra, S C
Keywords: Epoxy resin
Fly ash composite
Dielectric properties
Issue Date: 2016
Publisher: IOP Publishing
Citation: IOP Conference Series: Materials Science and Engineering, Volume 115, Number 1, 2016
Abstract: Epoxy resin is widely used as an insulating material in high voltage applications. Ceramic fillers are always added to the polymer matrix to enhance its mechanical properties. But at the same time, filler materials decreases the electrical properties. So while making the fly ash epoxy composite, it is obvious to detect the effect of fly ash reinforcement on the dielectric nature of the material. In the present research work, fly ash is added to four different weight percentages compositions and post-curing has been done in the atmospheric condition, normal oven and micro oven. Tests were carried out on the developed polymer composite to measure its dielectric permittivity and tan delta value in a frequency range of 1 Hz - 1 MHz. The space charge behaviours were also observed by using the pulse electroacoustic (PEA) technique. The dielectric strength and losses are compared for different conditions.
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