1. 毕业设计（论文）的内容和要求
绝缘陶瓷是电真空器件中起高压绝缘、真空密封、功率传输以及支撑固定的关键材料，在高压电子枪壳、输入窗、输出窗、阴极附近等多个部位都有重要应用。
氧化铝陶瓷，特别是高铝瓷的机械强度极高，导热性能良好，绝缘强度、电阻率高，介质损耗低，电性能随温度和频率的变化比较稳定，广泛应用于微波器件和中、大型功率金属陶瓷电子管中最为常用的电绝缘材料，尤其在要求性能较高的部位，如行波管中螺旋线的夹持杆、大功率微波管的输出窗、高能粒子加速器等等。
95％氧化铝陶瓷是目前国内外应用最广泛的绝缘子。
2. 参考文献
[1] Lei Yangjun, XIAO Dingquan. .Effects of Bulk Doping on Surface Insulating Performance of Alumina Ceramic in Vacuum[J]. IEEE Transactions on Dielectrics and Electrical Insulation. 2011,18(6) [2] Ding Lijian, LB Jinzhuang, LI Cheng rong, et al. Trap and de-trap process resulting in the alumina surface flashover in vacuum[J]. Proceedings of the CSEE, 2007, 27(9) [3] 张冠军, 杨敏中, 严璋,等. 采用光学方法研究陶瓷绝缘材料的沿面闪络特性[J]. 中国电机工程学报, 2000, 20(8) [4] Zhang GJ , Yan Z, Liu YS, et al. Pre-flashover and flashover phenomena of silicon-vacuum system under pulsed excitation[J]. Appl Phys Lett , 2002, 80(20) [5] G. J. Zhang, X. R.Wang，Z. Yan, et al, Optical Studies of Surface Discharge under DC Voltage in Vacuum, IEEE Transactions on Dielectrics and Electrical Insulation, 2002, 9(2) [6] Zhao WB, Zhang GJ , Yang Y, et al. Exploration of the correlation between trapping parameters and surface insulation strength of solid dielectrics under pulse voltage in vacuum[J]. IEEE Trans on Dielectr and Electr Insul , 2007, 14(1) :. [7] 丁立健, 李成榕, 王景春, 等. 真空中绝缘子沿面预闪络现象的研究[J]. 中国电机工程学报, 2001, 21(9) . [8] Yamamoto O, Takuma T, Fukuda M, et al. Improving with stand voltage by roughening the surface of an insulating spacer used in vacuum[J]. IEEE Trans on Dielectr and Electr Insul ,2003, 10(4) . [9] 丁立健，真空中绝缘子沿面预闪络和闪络现象的研究，博士学位论文，北京，华北电力大学，2000 年 [10] J. Sundara Rajan, K. Dwarakanath, S. N. Moorching, Investigations On Correlation Between Surface Flashover And Surface Roughness Of Insulating Spacers, 1998 IEEE Annual Report-- 1998 IEEE Conference on Electrical Insulation and Dielectric Phenomena, 1998 [11] T. S. Sudarshan, J. D. Cross, The Effect of Chromium Oxide Coatings on Surface Flashover of Alumina Spacers in Vacuum, IEEE Transactions on Electrical Insulation, 1976,11(1) [12] H. C. Miller, E. J. Furno, The Effect of Mn/Ti Surface Treatment on Voltage-holdoff Performance of Alumina Insulators in Vacuum, Journal of Applied Physics, 1978 [13] H. C. Miller, Flashover of Insulators, IEEE Transactions on Electrical Insulation, 1989,24(5) [14] Effects of Bulk Doping on Surface Insulating Performance of Alumina Ceramic in Vacuum [J]. IEEE Trans on Dielectr and Electr Insul , 2011, 18(6) [15] Effect of Annealing and Polishing on Flashover Characteristics of Ceramic in Vacuum [J]. IEEE Trans on Dielectr and Electr Insul , 2002, 9(3)
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