铝粉对自蔓延陶瓷内衬钢管陶瓷层的影响  

Influence of Aluminum Power on the Ceramic Coating of Ceramic-lined Steel Pipe Prepared by Self-propagating High Temperature Synthesis

作　　者：侯玉柏[1,2] 高峰[1,2] 郭志猛[3] 鲍君峰[1,2] 

机构地区：[1]北京矿冶研究总院,北京100070 [2]北京市工业部件表面强化与修复工程技术研究中心,北京102206 [3]北京科技大学材料科学与工程学院,北京100083

出　　处：《热喷涂技术》2012年第1期41-43,58,共4页Thermal Spray Technology

摘　　要：本文研究了不同粒度和不同偏铝量对自蔓延离心陶瓷内衬钢管组织的影响。利用排水法测量了涂层的孔隙度,利用扫面电镜观察了陶瓷层组织。结果表明,随着铝粉粒度的增加,涂层孔隙度增加。偏铝量对陶瓷层组织产生一定的影响,偏铝量0.05时,涂层的孔隙度最低,约为2.1%。当偏铝量为0.10时,可得到基本为氧化铝的陶瓷层。This study focused on the influence of aluminum powder＇s amount and particle size on the ceramic coating of ceramic-lined steel pipe prepared by self-propagating high temperature synthesis. The porosity of the ceramic coating was measured by Archimedean method. The microstructure of the coating was analyzed by scanning electron microscopy （SEM）.The results indicated that the porosity rises as the aluminum powder＇s particle increases. When the deviation aluminum amount is 0.05, the porosity is the lowest and reach 2.1%. When the deviation aluminum amount is 0.10, the ceramic layer is composed by Al2O3.

关 键 词：自蔓延 陶瓷内衬钢管 陶瓷层 

分 类 号：TG174.442[金属学及工艺—金属表面处理]