SiC发热体冷端性能优化  

Performance optimization of SiC heating elements cold-rod

作　　者：樊子民[1,2] 王晓刚[1] 强云霄[3] 刘向春[1] 

机构地区：[1]西安科技大学材料科学与工程学院,陕西西安710054 [2]西北工业大学凝固技术国家重点实验室,陕西西安710072 [3]西安科技大学通信与信息工程学院,陕西西安710054

出　　处：《西安科技大学学报》2009年第2期223-226,共4页Journal of Xi’an University of Science and Technology

基　　金：陕西省自然科学基金项目(SJ08ZT05-7);西安科技大学培育基金项目(200747);陕西省教育厅专项项目(08JK349)

摘　　要：以α-SiC、碳素材料、硅粉等为骨料，酚醛树脂为结合剂，制备出了以α-SiC，β-SIC和Si为主晶相的SiC发热体冷端。研究了成孔剂、结合剂、硅粉、碳素等对其性能的影响，优化了其工艺参数。结果表明，当成孔剂加入量为4％-4．5％时，试样弯曲度小于0．17％；当酚醛树脂加入量在28％～30％，硅加入量在6％-8％，C1加入量在45％-48％，C2加入量在2％～5％时制品具有良好的的工艺性能、其电阻率远低于国标要求。The SiC heating element cold-rod was prepared by the α-SiC, β-SIC and Si as the main crystals phase and by the carbon material, silicon, pore-forming agent as the skeletal material. The influence of pore-forming agent, silicon, carbon material on its performance was researched, and technological parameters were optimized. The results showed that the sample degree of curvature was less than 0.17% when the pore-forming agent addition is 4% -4.5% ;the best of PF resins addition was 28% -30%. It can get the better technological performance and smaller resistivity when Si addition was 6% - 8%, C1 addtion 45% - 48%, and C2 addtion 2% - 5%.

关 键 词：SIC 发热 成孔剂 骨料 

分 类 号：TQ171.68[化学工程—玻璃工业]