摘要
Ball mixing and electroless plating were respectively used as the adding methods of metallic phase to prepare Ni/(90NiFe2O4-10NiO) cermets for the inert anode in aluminum electrolysis. The microstructure and thermal shock resistance of cermet samples were studied. The results show that, for the samples prepared by ball mixing method, aggregation of metallic phase is found in either the green blocks or sintered samples and the extent of aggregation increases with the increase of metal content. For 6.5Ni/(90NiFe2O4-10NiO) cermets prepared with electroless plating method, the homogeneous and fine metallic particles are found in either the green compacts or sintered samples, but the relative density and thermal shock residual strength decrease by 3% and 28%-58% respectively, compared with samples prepared with ball mixing method.
Ball mixing and electroless plating were respectively used as the adding methods of metallic phase to prepare Ni/（90NiFe2O4-10NiO） cermets for the inert anode in aluminum electrolysis. The microstructure and thermal shock resistance of cermet samples were studied. The results show that, for the samples prepared by ball mixing method, aggregation of metallic phase is found in either the green blocks or sintered samples and the extent of aggregation increases with the increase of metal content. For 6.5Ni/（90NiFe2O4-10NiO） cermets prepared with electroless plating method, the homogeneous and fine metallic particles are found in either the green compacts or sintered samples, but the relative density and thermal shock residual strength decrease by 3% and 28%-58% respectively, compared with samples prepared with ball mixing method.
出处
《中国有色金属学会会刊：英文版》
EI
CSCD
2007年第4期681-685,共5页
Transactions of Nonferrous Metals Society of China
基金
Project(50474051) supported by the National Natural Science Foundation of China
Project(2005CB623703) supported by the National Basic Research Program of China
Project(03JJY3080) supported by the Natural Science Foundation of Hunan Province, China
关键词
电镀
金属陶瓷
微观结构
抗热震性
惰性阳极
铝电解
Ni/（90NiFe2O4-10NiO） cermets
microstructure
thermal shock resistance
inert anode
aluminum electrolysis
