电解等离子体法制备Al_2O_3陶瓷层及其特性研究  

Preparation of Al_2O_3 ceramic coating by electrolytic plasma processing and its properties

作　　者：顾伟超[1,2] 沈德久[3] 王玉林[3] 陈光良[1] 冯文然[1] 张谷令[1] 刘赤子[1] 杨思泽[1] 

机构地区：[1]中国科学院物理研究所 [2]燕山大学亚稳材料制备技术与科学重点实验室,秦皇岛066004 [3]燕山大学亚稳材料制备技术与科学重点实验室

出　　处：《物理学报》2005年第7期3263-3267,共5页Acta Physica Sinica

摘　　要：利用电弧喷铝并重熔后进行电解等离子体处理(EPP)的方法在Q235钢基体上制备出呈冶金结合的Al2O3陶瓷层.利用XRD,SEM和EDS等手段对陶瓷层的成分和显微组织进行了分析,测定了陶瓷层的耐蚀性能和耐磨性能.实验结果表明,陶瓷层主要由αAl2O3,γAl2O3,θAl2O3以及一些非晶相组成,组织致密,耐蚀性能和耐磨性能良好.Metallurgically bonded Al2O3 ceramic coating was prepared on steel surface with the combined method of arc spraying and electrolytic plasma processing. The composition and microstructure of the ceramic coating were analyzed by x-ray diffraction, scanning electron microscony and EDS. The corrosion resistance and wear resistance of the ceramic coating were measured. The results show that the ceramic coating is compact and mainly composed of alpha-Al2O3, gamma-Al2O3, theta-Al2O3 and a little of amorphous phase. The duplex coating shows favorable corrosion resistance and wear resistance properties.

关 键 词：陶瓷层 等离子体法 特性研究 制备 电解 Α-AL2O3 Γ-AL2O3 等离子体处理 耐磨性能 耐蚀性能 冶金结合 Q235 电弧喷铝 显微组织 晶相组成 XRD 钢基体 EDS SEM 重熔 

分 类 号：TQ174[化学工程—陶瓷工业]