Graphene-enhanced Cu composite interlayer for contact reaction brazing aluminum alloy 6061. (February 2017)

• Record Type: Journal Article
• Authors: Qi, Jun Lei; Wang, Ze Yu; Lin, Jing Huang; Zhang, Tian Qi; Zhang, Ao Tian; Cao, Jian; Zhang, Li Xia; Feng, Ji Cai
• Is Part Of: Vacuum. Volume 136(2017)
• Page Start: 142
• Page End: 145
• Publication Date: 2017-02
• Subjects: Contact reaction brazing -- Aluminum alloy 6061 -- Graphene -- Interlayer -- CVD; Vacuum -- Periodicals; 621.55
• DOI: 10.1016/j.vacuum.2016.11.032
• Languages: English
• ISSNs: 0042-207X

Abstract

Abstract: Contact Reaction Brazing of aluminum alloy 6061 using pure Cu nanoparticle interlayer usually encounters cracks and holes due to the intensive Al-Cu eutectic reaction. In order to solve these problems, here we report a new type of graphene-enhanced Cu composite (G-Cu) interlayer prepared by CVD to contact reaction braze aluminum alloy 6061. Results show that the G-Cu interlayer is conducive to retarding the intensive Al-Cu eutectic reaction. The average shear strength of the joint brazed with G-Cu interlayer reached 74 MPa. Highlights: Few-layer graphene-enhanced Cu composite interlayer was prepared by CVD for brazing. Our obtained graphene could effectively impede the intensive Al-Cu eutectic reaction. The graphene contributed to strengthening the joint.