离心-SHS法在陶瓷内衬复合钢管制备中的研究  

Centrifugal-SHS based preparation of composite steel pipe design for the ceramic-lined

作　　者：王勇 尹显明[1] 刘继光[1] 

机构地区：[1]西南科技大学工程技术中心,四川绵阳621010

出　　处：《矿山机械》2009年第19期55-57,共3页Mining & Processing Equipment

基　　金：西南科技大学实验室开放基金项目资助

摘　　要：利用离心高温自蔓延技术制备陶瓷内衬复合钢管,使用扫面电镜和能谱仪进行陶瓷层的组织结构、相组成和成分分析,并研究了添加剂SiO_2对复合钢管陶瓷层孔隙度的影响。结果表明,陶瓷层主要由α-Al_2O_3主相和铁铝尖晶石FeAl_2O_4组成。SiO_2对陶瓷层的致密性具有双重影响。当SiO_2含量为6%时,陶瓷孔隙度降至最低,约为5.1%。The ceramic-lined composite pipes are prepared by using the centrifugal and high-temperature self-propagating technique. The organizational structure, phase composition and constituents of the ceramic coating are analyzed with the scanning electron microscopy and EDS. The effects of the additive SiO2 on the porosity of ceramic layer of composite pipe is studied.The results show that the ceramic layer is consisted of α - Al2O3 main phase and hercynite FeAl2O4. The compactness of ceramic coating are impacted doubly by SiO2. The porosity of ceramic layers will reach the lowest （about 5.1% ） when the content of SiO2 is 6%.

关 键 词：自蔓延 高温合成 离心技术 陶瓷内衬 复合钢管 

分 类 号：TB39[一般工业技术—材料科学与工程]