10 ~ 299 K高真空条件下环氧树脂直流表面闪络特性研究

IF 1.8 3区工程技术 Q3 PHYSICS, APPLIED

Cryogenics Pub Date : 2025-03-26 DOI:10.1016/j.cryogenics.2025.104067

Di Jiang , Yu Feng , Hongwei Zhang , Zhixiong Wu , Zhicong Miao , Rongjin Huang , Laifeng Li , Yuan Zhou

{"title":"10 ~ 299 K高真空条件下环氧树脂直流表面闪络特性研究","authors":"Di Jiang , Yu Feng , Hongwei Zhang , Zhixiong Wu , Zhicong Miao , Rongjin Huang , Laifeng Li , Yuan Zhou","doi":"10.1016/j.cryogenics.2025.104067","DOIUrl":null,"url":null,"abstract":"<div><div>Understanding the low-temperature electrical properties of epoxy resin is crucial for the design of safe and reliable insulation structures of superconducting magnet systems. Actually, superconducting magnets are used in a wide range of temperatures for different applications, but the current electrical property testing of the epoxy resin is mainly single temperature. Herein, an efficient integrated electrical testing system in the cryogenic to room temperature range has been built by using a G-M cryocooler (Gifford-McMahon) as the cold source. The DC surface flashover characteristics of the epoxy resin were tested at 10, 20, 40, 80, 120, 160, 200, 240, 280, and 299 K in high vacuum helium, and Weibull distribution was obtained. The results show that the flashover strength of epoxy resin does not increase monotonically with the temperature decrease. This work fills the gap in the electrical performance of epoxy resin at multiple temperatures between 10 K to 299 K and helps to more fully comprehend the insulation properties of epoxy resins.</div></div>","PeriodicalId":10812,"journal":{"name":"Cryogenics","volume":"148 ","pages":"Article 104067"},"PeriodicalIF":1.8000,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"DC surface flashover characteristics of epoxy resin in high vacuum from 10 K to 299 K\",\"authors\":\"Di Jiang , Yu Feng , Hongwei Zhang , Zhixiong Wu , Zhicong Miao , Rongjin Huang , Laifeng Li , Yuan Zhou\",\"doi\":\"10.1016/j.cryogenics.2025.104067\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Understanding the low-temperature electrical properties of epoxy resin is crucial for the design of safe and reliable insulation structures of superconducting magnet systems. Actually, superconducting magnets are used in a wide range of temperatures for different applications, but the current electrical property testing of the epoxy resin is mainly single temperature. Herein, an efficient integrated electrical testing system in the cryogenic to room temperature range has been built by using a G-M cryocooler (Gifford-McMahon) as the cold source. The DC surface flashover characteristics of the epoxy resin were tested at 10, 20, 40, 80, 120, 160, 200, 240, 280, and 299 K in high vacuum helium, and Weibull distribution was obtained. The results show that the flashover strength of epoxy resin does not increase monotonically with the temperature decrease. This work fills the gap in the electrical performance of epoxy resin at multiple temperatures between 10 K to 299 K and helps to more fully comprehend the insulation properties of epoxy resins.</div></div>\",\"PeriodicalId\":10812,\"journal\":{\"name\":\"Cryogenics\",\"volume\":\"148 \",\"pages\":\"Article 104067\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2025-03-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cryogenics\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0011227525000451\",\"RegionNum\":3,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cryogenics","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0011227525000451","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}

引用次数: 0

摘要

了解环氧树脂的低温电性能对于设计安全可靠的超导磁体绝缘结构至关重要。实际上，超导磁体在不同的应用中有很宽的温度范围，但目前对环氧树脂的电性能测试主要是单一温度。本文采用G-M制冷机（Gifford-McMahon）作为冷源，构建了低温至室温范围内的高效集成电气测试系统。在高真空氦气中测试了10、20、40、80、120、160、200、240、280和299 K时环氧树脂的直流表面闪络特性，得到了威布尔分布。结果表明，环氧树脂的闪络强度不随温度的降低而单调增加。这项工作填补了环氧树脂在10 ~ 299 K多个温度下的电性能空白，有助于更全面地了解环氧树脂的绝缘性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

DC surface flashover characteristics of epoxy resin in high vacuum from 10 K to 299 K

Understanding the low-temperature electrical properties of epoxy resin is crucial for the design of safe and reliable insulation structures of superconducting magnet systems. Actually, superconducting magnets are used in a wide range of temperatures for different applications, but the current electrical property testing of the epoxy resin is mainly single temperature. Herein, an efficient integrated electrical testing system in the cryogenic to room temperature range has been built by using a G-M cryocooler (Gifford-McMahon) as the cold source. The DC surface flashover characteristics of the epoxy resin were tested at 10, 20, 40, 80, 120, 160, 200, 240, 280, and 299 K in high vacuum helium, and Weibull distribution was obtained. The results show that the flashover strength of epoxy resin does not increase monotonically with the temperature decrease. This work fills the gap in the electrical performance of epoxy resin at multiple temperatures between 10 K to 299 K and helps to more fully comprehend the insulation properties of epoxy resins.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Cryogenics 物理-热力学

CiteScore

3.80

自引率

9.50%

发文量

审稿时长

2.1 months

期刊介绍： Cryogenics is the world''s leading journal focusing on all aspects of cryoengineering and cryogenics. Papers published in Cryogenics cover a wide variety of subjects in low temperature engineering and research. Among the areas covered are: - Applications of superconductivity: magnets, electronics, devices - Superconductors and their properties - Properties of materials: metals, alloys, composites, polymers, insulations - New applications of cryogenic technology to processes, devices, machinery - Refrigeration and liquefaction technology - Thermodynamics - Fluid properties and fluid mechanics - Heat transfer - Thermometry and measurement science - Cryogenics in medicine - Cryoelectronics