Copper laminated composites reinforced with Al2O3 nanoparticles by suspension method and hot pressing

7th International Conference on Key Engineering Materials

材料科学;工业技术

Roudini, G.^1 ; Ghahfarokhi, A.Rasti^1 ; Behzadmehr, A.^2

Department of Engineering Materials, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran^1

Mechanical Engineering Department, Faculty of Engineering, University of Sistan and Baluchestan, Zahedan, Iran^2

关键词: Alumina Nanoparticle;    Cu layers;    Electrical industry;    Electrical junctions;    Pure copper;    Suspension methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/201/1/012026/pdf
DOI  :  10.1088/1757-899X/201/1/012026

来源: IOP

【 摘 要 】

Laminated composite of copper with alumina nanoparticle reinforcements has application such as electrical industries. Electrical junctions should have high electrical, thermal conductivity with good mechanical strength. In this research the layers interface of pure copper were reinforced by alumina nanoparticles. For the production of the composite, first alumina nanoparticles were dispersed on Cu layers by suspension method and then the layers were hot pressed at 950°C under 20 MPa pressure. After composite making, the microstructure, the tensile and impact of these composite were studied. The results showed that by increasing amount of alumina nanoparticles up to 0. 5 wt %, tensile and impact strength were increased and for the composites with more than 0.5 wt % because of agglomeration of nanoparticles, these properties were decreased.