作　　者： ; ; (颜东亮）;

机构地区： 桂林电子科技大学

出　　处： 《稀有金属材料与工程》 2010年第11期2018-2022,共5页

摘　　要： 以氧化硅玻璃纤维为载体,采用非均匀成核法在其表面包覆一层锑掺杂二氧化锡(ATO)制备了导电纤维。导电纤维的电阻率随热处理温度升高的变化趋势与ATO基本一致,包覆物加入率为100%、75%、50%、25%和12.5%的ATO包覆氧化硅纤维在500～1200℃处理后的电阻率全部低于200?·cm。由于较大的长径比所导致的桥联效应,少量的导电纤维在陶瓷中就能形成完善的导电网络,同时也能极大减少防静电陶瓷中ATO的用量,包覆物加入率为12.5%的ATO包覆纤维作为导电填料时,能节省约77.8%的ATO。 Conductive fiber was prepared by coating antimony-doped tin oxide (ATO) on silicon dioxide glass fiber using a heterogeneous nucleation method. The varying trend of resistivity with the calcination temperature of the ATO-coated silicon dioxide fiber was almost the same as that of the pure ATO. The resistivities of the ATO-coated silicon dioxide fibers with the coating amounts of 100%, 75%, 50%, 25%, and 12.5% and treated at 500-1200°C were all below 200 Ω · cm. As the conductive additive, the ATO-coated silicon dioxide fiber can maximally save the ATO amount because of the bridge effect resulting from its high aspect ratio, which makes it possible to form a more completed conductive net in the ceramics for a small quantity of conductive fibers. For instance, about 77.8% of ATO amount can be saved when the ATO-coated silicon dioxide fibers with 12.5% coating material are used as conductive filler. Copyright © 2010, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.

关 键 词： 导电纤维 制备 电陶瓷 表面包覆 锑掺杂二氧化锡 氧化硅纤维 加入率 非均匀成核法 电阻率 温度升高 桥联效应 导电网络 导电填料 热处理 玻璃纤维 变化趋势 长径比 载体

领　　域： [金属学及工艺] [一般工业技术] [金属学及工艺]