固相配位反应法制备Cu_(0.30)Ni_(0.66)Mn_(2.04)O_4超细粉体  

Preparation of Ultra-fine Cu_(0.30)Ni_(0.66)Mn_(2.04)O_4 Powders by Solid-State Coordination Reaction

作　　者：方道来[1] 

机构地区：[1]安徽工业大学材料科学与工程学院安徽省高等学校金属与材料加工重点实验室,安徽马鞍山243002

出　　处：《安徽工业大学学报（自然科学版）》2009年第1期42-44,共3页Journal of Anhui University of Technology（Natural Science）

摘　　要：以乙酸盐和草酸为原料，采用室温固相配位反应制得Cu0.30Ni0.66Mn2.04（C2O4）·nH2O复合草酸盐，将该草酸盐在800℃煅烧2h，得到尖晶石相Cu0.30Ni0．66Mn2.04O4复合氧化物粉体。该氧化物粉体粒径均匀细小，一次粒径为-150nm；烧结活性较高，在1050℃烧结5h制得的热敏陶瓷相对密度高达-97％。A mixed oxalate Cu0.30Ni0.66Mn2.04 （C2O4）3·nH2O was synthesized by a route of solid-state coordination reaction at room temperature, using metal acetate and oxalic acid as raw materials. Spinel-structured Cu0.3Ni0.66,Mn2.04O4powder with high sintering activity and a primary particle size of -150 nm was obtained by calcining the oxalate in air at 800 ℃ for 2 h. Dense Cu0.3Ni0.66, Mn2.04O4 ceramics with a relative density as high as-97% were achieved by sintering powder compacts at a lower temperature of 1050 ℃ for 5 h.

关 键 词：NTC热敏陶瓷 固相配位 复合草酸盐前驱体 

分 类 号：TB44[一般工业技术]