冷喷涂陶瓷金属化沉积机理研究进展  

Research progress on deposition mechanism of ceramic metallization by cold spraying

作　　者：秦加浩 方凯 连信宇 王永刚[1,2] 王江[3] 所新坤 QIN Jia-hao;FANG Kai;LIAN Xin-yu;WANG Yong-gang;WANG Jiang;SUO Xin-kun(Key Laboratory of Impact and Safety Engineering,Ministry of Education,Ningbo University,Ningbo 315211,China;College of Mechanical Engineering and Mechanics,Ningbo University,Ningbo 315211,China;State Key Laboratory of Advanced Special Steel,Shanghai University,Shanghai 200444,China)

机构地区：[1]宁波大学冲击与安全工程教育部重点实验室,宁波315211 [2]宁波大学机械工程与力学学院,宁波315211 [3]上海大学省部共建高品质特殊钢冶金与制备国家重点实验室,上海200444

出　　处：《粉末冶金技术》2022年第2期118-125,130,共9页Powder Metallurgy Technology

摘　　要：陶瓷与金属由于在热膨胀系数上的差异,导致在热加工后结合强度较差。冷喷涂是一种新型绿色环保的表面涂层和增材制造技术,其优点是结合强度较高,对基体热影响小,残余应力为压应力,能够直接在陶瓷表面制备结合力较高的金属涂层,是一种潜在的陶瓷金属化技术。本文综述了国内外冷喷涂陶瓷金属化技术的研究进展和技术现状,着重介绍了冷喷涂陶瓷金属化涂层的组织结构特点和工艺优化方案,分析了金属陶瓷界面的两种结合现象和结合机理,并展望了冷喷涂陶瓷金属化技术的应用设想。The difference in thermal expansion coefficient between ceramics and metals results in poor bonding strength after heat processing.Cold spraying(CS)is a new and green surface coating and additive manufacturing technology with the advantages as high bonding strength,little thermal impact on substrates,and residual compressive stress.The cold spraying is recognized as a potential ceramic metallization method because it can be employed to fabricate the metallic coatings on the ceramics directly with the relatively high bonding strength.The research progress and technical status of the cold spray ceramic metallization technology at home and abroad were reviewed in this article,the microstructure characteristics and process optimization were analyzed,the bonding phenomena and mechanisms of coatings were discussed,and the application potential and challenge of the cold spray ceramic metallization technology were summarized.

关 键 词：冷喷涂 陶瓷 表面金属化 结合机理 

分 类 号：TG142.71[一般工业技术—材料科学与工程]