C09 先进陶瓷材料分会场 - 中国材料研究学会.PDFVIP

C09. 先进陶瓷材料分会场 分会主席：吴澜尔、肖汉宁、李江涛、王燕民、张国军 C09-01 (Invited) Near Infrared Radiation Ceramics for Energy-saving Applications in High Temperature Industries Jiangtao Li Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Nowadays, it is a great challenge to reduce energy consumption and exhaust emission for human activities, in particular, high temperature industries. Among many efforts made to realize energy savings for high temperature furnaces and kilns, the use of high emissivity ceramics is considered to be an effective route to increase their thermal efficiency by enhancing radiation-heat transfer. Most materials with high refractoriness have weak infrared absorption and radiation properties, however, their emissivity in near infrared regions (NIR, 1~5 μm) could be effectively increased by ion doping. This is attributed to three main mechanisms:1) formation of impurity energy level; 2) increase of free carrier absorption; 3) distortion of the crystal lattice. In this paper, the RD of various material systems with high emissivity including non-oxides and oxide based ceramics were reviewed. It is also suggested that the establishment of evaluation models or instruments for measuring the amount of energy savings is needed for the design and application of high emissivity NIR-ceramics in various high-temperature environment. Furthermore, more efforts should be made on the durability of high emissivity NIR-ceramics at elevated service temperatures. C09-02(Invited) 先进碳化硅陶瓷材料的研究与应用 黄政仁 中国科学院上海硅酸盐研究所 碳化硅陶瓷材料具有优良的力、热、电性能与抗辐照性能，是未来具有主要发展与应用前景的高性能 结构陶瓷材料。本报告重点介绍了在常压烧结碳化硅陶瓷材料热导率、电阻率控制调控，发现晶界是影响 常压固相烧结碳化硅陶瓷导热性能与电阻率的最主要影响因素，中子辐照实验结果证实，碳化硅陶瓷的中 子辐照损伤主要发生在材料浅表面，从而使得碳化硅陶瓷具有优秀的抗中子辐照性能。报告还展示了高性 能常压固相烧结碳化硅陶瓷作为高性能热交换材料和光学部件材料的应用前景。 关键词：碳化硅；热导率；电阻率；中子辐照；热交换部件 C0