金属陶瓷发热体中陶瓷基体的设计和制备
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- 论文作者：邓腾飞 ; 贾倩
- 年：2016
- 作者机构：武汉理工大学硅酸盐国家重点实验室;
- 论文关键词：碳化硅 ; 金属陶瓷发热体 ; 热导率 ; 微观结构
- 英文论文关键词：SiC ; Ceramic matrix ; Metal Ceramics Heater(MCH) ; Thermal conductivity ; Structure and Properties
- 会议召开时间：2016-11-05
- 会议录名称：2016中国硅酸盐学会陶瓷分会学术年会会刊
- 语种：中文
- 分类号：TQ174.1
- 学会代码：EUGQ
- 会议名称：2016中国硅酸盐学会陶瓷分会学术年会
- 会议地点：中国辽宁沈阳
- 主办单位：中国硅酸盐学会陶瓷分会、辽宁省沈阳市法库县政府、辽宁省轻工科学研究院
- 学会名称：中国硅酸盐学会
- 页数：7
- 文件大小：2393k
- 原文格式：O
- 会议级别：全国
摘要
近年来,随着科学技术的快速发展,新型加热材料的开发与应用在材料科学和能源开发领域内的地位越来越重要。本课题以碳化硅、工业氢氧化铝、苏州土、钾长石、氧化钙为主要原料,设计了B系列配方,采用半干压成型和注凝成型两种不同的方法来制备金属陶瓷发热体基体,并确定最佳配方及制备工艺参数,以期在降低成本的同时,使其用途更加广泛。实验制备出了陶瓷基体并成功得到经二次烧成后内部镶嵌钨丝的样品。通过XRD和SEM等现代测试技术对材料的性能和微观结构进行了表征,相组成分析结果表明,样品的主晶相为碳化硅和方石英。显微结构分析表明,样品中生成了碳化硅晶粒。且热导率与氧化铝陶瓷相比大大提高。
In recent years,with the rapid development of science and technology,the development and application of new heating materials are becoming more and more important in the field of materials science and energy development.In this paper,using the SiC powder,industrial Al(OH)_3,Suzhou kaolin,potash feldspar and CaO as the main raw materials to prepare the metal ceramic heating body and to determine the optimum formulation and preparation process parameters.In order to achieve the goal of reducing the costs and making it more widely,the properties and microstructure of the materials were characterized by XRD,SEM and other modern test techniques.The ceramic matrix was prepared by experiment.And the samples inlaid with tungsten wire were obtained successfully by the double firing.The phase composition analysis indicated that the main phases of samples were silicon carbide and cristobalite.The study results of microstructure showed that silicon carbide is gained in the samples.Compared with the alumina ceramic,the thermal conductivity of samples is greatly improved.
In recent years,with the rapid development of science and technology,the development and application of new heating materials are becoming more and more important in the field of materials science and energy development.In this paper,using the SiC powder,industrial Al(OH)_3,Suzhou kaolin,potash feldspar and CaO as the main raw materials to prepare the metal ceramic heating body and to determine the optimum formulation and preparation process parameters.In order to achieve the goal of reducing the costs and making it more widely,the properties and microstructure of the materials were characterized by XRD,SEM and other modern test techniques.The ceramic matrix was prepared by experiment.And the samples inlaid with tungsten wire were obtained successfully by the double firing.The phase composition analysis indicated that the main phases of samples were silicon carbide and cristobalite.The study results of microstructure showed that silicon carbide is gained in the samples.Compared with the alumina ceramic,the thermal conductivity of samples is greatly improved.
引文
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[2]邹勇明,吴金岭,郑宏宇.钨金属化与氧化铝陶瓷高温共烧[J].真空电子技术,2004(4):20-23.
[3]苏方宁,雷云燕,吴崇隽.网版印刷陶瓷发热片阻值分布的影响[J].丝网印刷,2008(8):14-16.
[4]孟庆钧.高精度PTC陶瓷发热材料研究[J].陶瓷科学与艺术,2003(1):32-35.
[5]WANG I,SNIDLERW,GUL.Rolling contact silicon nitride bearing technology:a review of recent research[J].Wear,2000,246:159-173.
[6]KATARN.Ceramic bearings rolling along[J].Ceramic Industry,1999,149:23-24.