Effect of Silicon Carbide on Microstructural, Mechanical and Corrosion Behavior of Electrolytic Copper Matrix Composite Produced by the Powder Metallurgy Route

In this work Copper based composites were synthesized from Cu and SiC powders using Powder Metallurgy (PM) technique. The composition of the composites are Cu, Cu-5 wt% SiC, Cu-10 wt% SiC and Cu-15 wt% SiC were made using 400 kN hydraulic press and sintered at 900 °C using muffle furnace for 4 h. Sc...

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Bibliographic Details
Published in:SILICON 2022-07, Vol.14 (11), p.5877-5886
Main Authors: Sridhar, M. Melwin Jagadeesh, Ravichandran, M., Meignanamoorthy, M., Mohanavel, V.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Compressive strength
Copper
Corrosion effects
Corrosion rate
Corrosion resistance
Corrosion tests
Environmental Chemistry
Hardness
Hydraulic presses
Inorganic Chemistry
Lasers
Materials Science
Metal matrix composites
Muffle furnaces
Optical Devices
Optics
Original Paper
Photonics
Polymer Sciences
Powder metallurgy
Radiators
Scanning electron microscopy
Silicon carbide
Sintering (powder metallurgy)
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Summary:In this work Copper based composites were synthesized from Cu and SiC powders using Powder Metallurgy (PM) technique. The composition of the composites are Cu, Cu-5 wt% SiC, Cu-10 wt% SiC and Cu-15 wt% SiC were made using 400 kN hydraulic press and sintered at 900 °C using muffle furnace for 4 h. Scanning Electron Microscope (SEM) analysis was done on ball milled powders and sintered samples showed the uniform dispersal of SiC in the Cu. EDAX analysis evident the occurrence of SiC in the matrix. The addition of SiC in Cu improved the hardness and compressive strength (CS). Salt spray corrosion test resulted that, the improved corrosion resistance was obtained for the composite contain 10 wt.% of SiC. The corrosion rate was accomplished for the Cu – 10 wt.% SiC composite as 0.000894535 mm/year. Highest CS was attained for the sample contain 10 wt.% of SiC and highest hardness was observed for the sample contain 15 wt.% of SiC. The strengthening mechanism was discussed with the help of SEM images. The density was decreased and the % porosity was increased for the increasing wt.% of SiC in Cu matrix. The sintered density is higher than the green density for all the samples. From the observed results, it is concluded that produced composites would be suitable for radiator applications.
ISSN:1876-990X
1876-9918
DOI:10.1007/s12633-021-01369-w