用低频介电响应监测辐射对环氧树脂样品的影响

Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93) Pub Date : 1993-10-17 DOI:10.1109/CEIDP.1993.378920

A. Al-Attabi, R. Fouracre, H. M. Banford, H. Li

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引用次数: 0

摘要

在初步研究中子辐射对环氧树脂样品的影响时，测量了/spl epsi/”作为频率和温度的函数。样品由双酚a树脂的二甘醇醚制成。还测量了瞬态放电电流，并尝试使用哈蒙近似或傅里叶变换技术来分析数据。初步数据表明，直流暂态不受t/sup -n/依赖关系的支配。对这些数据进行傅里叶分析以获得低频介电信息，表明存在损耗峰。损耗分析仪数据中观察到的低频/spl epsi/”的增加可能归因于直流电导率效应。

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An investigation of low frequency dielectric response to monitor radiation induced changes in epoxy resin samples

Measurements of /spl epsi/" as a function of frequency and temperature have been undertaken in a preliminary investigation of the effects of neutron radiation on samples of an epoxy resin. Samples were produced from a diglycidel ether of bisphenol A resin. Transient discharging currents were also measured, and attempts were made to analyze the data using either the Hamon approximation or a Fourier transform technique. The preliminary data indicate that the DC transient is not governed by a t/sup -n/ dependence. Fourier analysis of these data to obtain low-frequency dielectric information indicates the presence of a loss peak. The increase of /spl epsi/" at lower frequencies observed in the loss analyzer data might be attributable to DC conductivity effects.<>

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Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93)

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