相关实验视频

Updated: Jun 18, 2025

In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices

In Situ Time-dependent Dielectric Breakdown in the Transmission Electron Microscope: A Possibility to Understand the Failure Mechanism in Microelectronic Devices

Published on: June 26, 2015

环氧树脂介层接口对电树生长和分解特征的影响

Chuang Wang¹, Xu Li¹, Gang Zhou¹

¹School of Electrical Engineering, Xi'an University of Technology, Xi'an 710048, China.

Langmuir : the ACS journal of surfaces and colloids

|July 29, 2024

概括

这项研究研究了高压设备中的环氧环氧接口,发现这些接口可以抑制电树形成. 接口的存在增强了当电场平行时的交流断裂强度,但在垂直时降低了它.

科学领域:

材料科学材料科学材料科学
电气工程电气工程
聚合物科学聚合物科学

背景情况:

固体隔热接口在超高压电力设备中至关重要.
多层环氧树脂是这些系统中关键的绝缘材料.
了解接口特性对于设备可靠性至关重要.

研究的目的:

分析环氧-环氧接口的交叉连接程度.
研究这些接口对电树发展的影响.
为了评估接口对不同电场方向下的交流断裂强度的影响.

主要方法:

制备环氧-环氧交联接口标本.
通过改变固化剂比率和添加基终结液体化 (HTBN) 颗粒来分析接口交叉连接.
用电场平行和垂直于接口的电树测量和交流电 (AC) 断裂试验.

主要成果:

证实了环氧-环氧接口的弱交联反应.
接口的存在抑制了电树的发展.
在与电场平行的接口时,交流电断强度增加,但在垂直时降低.

结论:

环氧-环氧接口的交叉连接程度会影响它们的电特性.
接口在减轻电力设备中的电气树木化方面发挥着重要作用.
与电场相对的接口取向通过影响电荷传输而对交流电断强度产生重大影响.

更多相关视频

A 3D-printed Chamber for Organic Optoelectronic Device Degradation Testing

A 3D-printed Chamber for Organic Optoelectronic Device Degradation Testing

Published on: August 10, 2018

Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process

Author Spotlight: Enhancing Fiber Composite Laminate Quality with the Wet Hand Lay-Up/Vacuum Bag Process

Published on: June 30, 2023

相关概念视频

Electrostatic Boundary Conditions in Dielectrics

Electrostatic Boundary Conditions in Dielectrics

When an electric field passes from one homogeneous medium to another, crossing the boundary between the two mediums imparts a discontinuity in the electric field. This results in electrostatic boundary conditions that depend on the type of mediums the field propagates through.
Consider a case where both the mediums across a boundary are two different dielectric materials. Recall that the electric field and electric displacement are proportional and related through the material's...