Abstract: Alumina porous ceramics were fabricated by gelcasting and pressureless sintering method by using agarose as monomer, sodium dodecyl sulfonate as foaming agent and MgO+TiO2 as sintering aids. The effects of different contents of foaming agent and solid phase on the microstructure and mechanical properties of Al2O3 porous ceramic were investigated. The curing mechanism of agarose gel system was also studied. The results showed that the formation of 3D network structure of agarose during cooling process causes the in-situ solidification of the raw ceramic powders. The sodium dodecyl sulfonate displays satisfactory foaming ability and foam stabilizing ability. The appropriate solid content and foaming agent content were beneficial to the fabrication of porous Al2O3 ceramics with high porosity and moderate compressive strength. The highest porosity of Al2O3 porous ceramic in this work reached 85.2%.
Deng X G, Wang J K, Du S, et al. Materials Review A: Review Papers,2015,29(5),109(in Chinese).邓先功,王军凯,杜爽,等.材料导报:综述篇,2015,29(5),109.2 Santanu D, Parag B. Journal of the American Ceramic Society,2010,86(10),1645.3 Dong X, Wang M C, Guo A R, et al. Journal of Alloys and Compound,2016,694,1045.4 Vijayan S, Narasimman R, Prabhakaran K. Ceramics International,2014,40(2),3185.5 Guo X S, Zhou Z F, Ma G L, et al. Ceramics International,2012,38(1),713.6 Akiya S, Kikuchi T, Natsui S, et al. Electrochimica Acta,2016,190,471.7 He J S, Feng X M, Ai T T. Materials Review B: Research Papers,2011,25(5),103(in Chinese).何俊升,冯小明,艾桃桃.材料导报:研究篇,2011,25(5),103.8 Tulliani J M, Lombardi M, Palmero P, et al. Journal of the European Ceramic Society,2013,33(9),1567.9 Deng X G, Wang J K, Liu J H, et al. Ceramics International,2016,42(16),18215.10 Jana D C, Sundararajan G, Chattopadhyay K. Journal of the American Ceramic Society,2016,100(1),312.11 Potoczek M. Materials Letters,2008,62(6-7),1055.12 Potoczek M. Ceramics International,2008,34(3),661.13 Innocentini M D D M, Rasteira V D, Potoczek M, et al. Journal of Materials Research,2017,32(14),1.14 Jiang C, Huang J G, Zhao W R. Bulletin of the Chinese Ceramic Society,2016,35(4),1311(in Chinese).江超,黄建国,赵文茹.硅酸盐通报,2016,35(4),1311.15 Li L. The research on extraction technology of agarose from Gracilaria lemaneiformis.Master’s thesis, Fujian Agriculture and Forestry University,China,2013(in Chinese).李龙.龙须菜琼脂糖的提取技术研究.硕士学位论文,福建农林大学,2013.16 Wang X L. Studies on modification and preparation methods of low gelling temperature agrarose. Master’s thesis, Institute of Oceanology of the Chinese Academy of Sciences, China,2015(in Chinese).王晓龙.琼脂糖改性制备低凝固温度琼脂糖技术研究.硕士学位论文,中国科学院海洋研究所,2015.17 Fu Y, Shen P, Hu Z, et al. Journal of Porous Materials,2015,2,118 Chai Y X, Zhou X G, Key Engineering Materials,2014,602-603,192.19 Sun Y, Xu K H, Sun J L, et al. Journal of the Chinese Ceramic Society,2015,43(9),1255(in Chinese).孙阳,徐鲲濠,孙加林,等.硅酸盐学报,2015,43(9),1255.20 Zhang L J, Zheng Z. Colloid and interface chemistry, South China University of Technology Press, China,2006(in Chinese).章莉娟,郑忠.胶体与界面化学,华南理工大学出版社,2006.21 Fey T, Zierath B, Greil P, et al. Journal of Porous Materials,2015,22(5),1305.22 Liu H S, Sun G, Han P H, et al. Petroleum Geology and Oilfield Deve-lopment in Daqing,2015,34(1),121(in Chinese).刘宏生,孙刚,韩培慧,等.大庆石油地质与开发,2015,34(1),121.23 Wu H B, Yuan B, Han J S, et al. Materials Science and Technology,2012,20(4),144(in Chinese).吴海波,袁波,韩建燊,等.材料科学与工艺,2012,20(4),144.24 Mao X J, Shimai S, Wang S W. Journal of the American Ceramic Society,2008,91(7),2412.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2019, Vol. 33 
