{"title":"Design and 3D Printing of Ceramic Insulation for Surface Flashover Mitigation in Vacuum","authors":"Chao Wang, Yulong Yang, Xinru Shi, Xiong Yang, Guangyu Sun, Zhaoquan Chen, Sile Chen, Xing Jin, Songlin Ran, Guanjun Zhang","doi":"10.1049/hve2.70104","DOIUrl":null,"url":null,"abstract":"Poor electrical strength of the ceramic–vacuum interface restricts the development of various electrical/electronic devices. Limitations of solutions based on conventional ceramics fabrication procedures are becoming prominent with the further demand for compactness and performance improvement. In this study, a fabrication method utilising 3D printing technology is proposed to construct ceramic insulation with designed structures. The processing characteristics, dielectric properties and morphologies of 3D-printed ceramics fabricated under different processing parameters were analysed. The results indicated that fillers' particle size, sintering temperature and sintering aids have significant influence on the dielectric properties and the internal defects. Finally, with optimised processing parameters, Al<sub>2</sub>O<sub>3</sub> ceramics with low dielectric loss and complex structures were fabricated to inhibit vacuum flashover from the perspectives of electric field optimisation and secondary electron emission suppression. Compared with traditional ceramic insulator fabrication methods, the proposed construction strategy has an accurate and efficient fabrication process and high insulation performance, making it promising for industrial applications.","PeriodicalId":48649,"journal":{"name":"High Voltage","volume":"6 1","pages":""},"PeriodicalIF":4.9000,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"High Voltage","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1049/hve2.70104","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
Poor electrical strength of the ceramic–vacuum interface restricts the development of various electrical/electronic devices. Limitations of solutions based on conventional ceramics fabrication procedures are becoming prominent with the further demand for compactness and performance improvement. In this study, a fabrication method utilising 3D printing technology is proposed to construct ceramic insulation with designed structures. The processing characteristics, dielectric properties and morphologies of 3D-printed ceramics fabricated under different processing parameters were analysed. The results indicated that fillers' particle size, sintering temperature and sintering aids have significant influence on the dielectric properties and the internal defects. Finally, with optimised processing parameters, Al2O3 ceramics with low dielectric loss and complex structures were fabricated to inhibit vacuum flashover from the perspectives of electric field optimisation and secondary electron emission suppression. Compared with traditional ceramic insulator fabrication methods, the proposed construction strategy has an accurate and efficient fabrication process and high insulation performance, making it promising for industrial applications.
High VoltageEnergy-Energy Engineering and Power Technology
CiteScore
9.60
自引率
27.30%
发文量
97
审稿时长
21 weeks
期刊介绍:
High Voltage aims to attract original research papers and review articles. The scope covers high-voltage power engineering and high voltage applications, including experimental, computational (including simulation and modelling) and theoretical studies, which include:
Electrical Insulation
● Outdoor, indoor, solid, liquid and gas insulation
● Transient voltages and overvoltage protection
● Nano-dielectrics and new insulation materials
● Condition monitoring and maintenance
Discharge and plasmas, pulsed power
● Electrical discharge, plasma generation and applications
● Interactions of plasma with surfaces
● Pulsed power science and technology
High-field effects
● Computation, measurements of Intensive Electromagnetic Field
● Electromagnetic compatibility
● Biomedical effects
● Environmental effects and protection
High Voltage Engineering
● Design problems, testing and measuring techniques
● Equipment development and asset management
● Smart Grid, live line working
● AC/DC power electronics
● UHV power transmission
Special Issues. Call for papers:
Interface Charging Phenomena for Dielectric Materials - https://digital-library.theiet.org/files/HVE_CFP_ICP.pdf
Emerging Materials For High Voltage Applications - https://digital-library.theiet.org/files/HVE_CFP_EMHVA.pdf