电子元件与材料2009，Vol.28Issue(8)：30-34,5.DOI:10.3969/j.issn.1001-2028.2009.08.009
MnNiCuFe系材料的聚合络合法制备及微波烧结
Microwave sinter of Mn0.43Ni0.90CuFe0.67O4 thermistor materials prepared by polymerized complex method
摘要
Abstract
In order to obtain NTC thermistor with low B value (2 100 K), high-precision、exchange-type and fine homogeneity, Mn0.43Ni0.90CuFe0.67O4 NTC thermistor material precursors were prepared by the polymerized complex method. The oxide mixtures were attained from calcining of the polymerized gel precursor at 500 ℃ and then were microwave-calcined at different temperatures to determine the optimum temperature. The materials were then microwave and conventionally sintered after forming. The materials were characterized by TGA-DTA, FT-IR, XRD, particle size analyzer, SEM and EDS. The experimental results indicate that the particles microwave calcined at 650 ℃ were small and uniform. The ceramics mainly consist of rich-Cu phase and poor-Cu phase. The homogeneity of components is significantly increased by microwave sinter. Moreover, the rate of finished products is increased to 80% from 30% compared with the one of conventional sinter.关键词
聚合络合法/微波煅烧/微波烧结/Mn0.43Ni0.90CuFe0.67O4/热敏材料Key words
polymerized complex method/microwave calcination/microwave sinter/Mn0.43Ni0.90CuFe0.67O4/thermistor materials分类
信息技术与安全科学引用本文复制引用
靳先静,常爱民,张惠敏,张东炎..MnNiCuFe系材料的聚合络合法制备及微波烧结[J].电子元件与材料,2009,28(8):30-34,5.基金项目
乌鲁木齐市科技攻关项目(No. G06211002) （No. G06211002）
乌鲁木齐市种子基金资助项目(No. K08141001) （No. K08141001）
