Related citation: | Nur Amirah Mohd Zahri,Farazila Yusof,Yukio Miyashita,Tadashi Ariga,A. S. Md. Abdul Haseeb.Effect of Porous Copper Pore Density on Joint Interface: Microstructure and Mechanical Analysis[J].Journal of Harbin Institute Of Technology(New Series),2022,29(1):24-31.DOI:10.11916/j.issn.1005-9113.2020056. |
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Author Name | Affiliation | Nur Amirah Mohd Zahri | Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia | Farazila Yusof | Department of Mechanical Engineering, Faculty of Engineering and Advanced Manufacturing & Material Processing AMMP Centre, University of Malaya, Kuala Lumpur 50603, Malaysia | Yukio Miyashita | Department of Mechanical Engineering, Nagaoka University of Technology, Nagaoka 940-2188, Japan | Tadashi Ariga | Department of Metallurgical Engineering, Tokai University, Hiratsuka 259-1292, Japan | A. S. Md. Abdul Haseeb | Department of Mechanical Engineering, Faculty of Engineering and Centre of Advanced Materials CAM, University of Malaya, Kuala Lumpur 50603, Malaysia |
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Abstract: |
The effect of the pore density of porous copper (Cu) on brazed Cu/porous Cu was investigated. A filler with a composition of Cu-9.0Sn-7.0Ni-6.0P (Sn: Tin; Ni: Nickel; P: Phosphorus) and porous Cu with pore densities of 15 pores per inch (PPI), 25 PPI, and 50 PPI were employed. The joint strength of Cu/porous Cu was evaluated with shear tests at different brazing temperatures. Characterizations of the joint interface and fractured surface were achieved with scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD). The micro-hardness test of Cu/porous Cu joint interface showed a high hardness value (HV) for 50 PPI porous Cu. This result was in line with its low shear strength. It was proved that the joint strength of Cu/porous Cu is dependent on the pore density of the porous Cu structure and brittle phases of Cu3P and Ni3P in the brazed interface. |
Key words: porous metal brazing interface microstructure shear fracture |
DOI:10.11916/j.issn.1005-9113.2020056 |
Clc Number:TG4 |
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