Influence of carbon nanotubes and dispersions of SiC on the physical and mechanical properties of pure copper and copper‐nickel alloy |
| |
Authors: | S. El‐Khatib A. Y. Shash A. El‐Habak A. H. Elsayed |
| |
Affiliation: | 1. Mechanical Engineering Department, Future University in Egypt, End of 90th St., Fifth Settlement, New Cairo, 11835 CAIRO, ARAB REPUBLIC OF EGYPT;2. Mechanical Design and Production Engineering Department, Cairo University, 12613 CAIRO, ARAB REPUBLIC OF EGYPT;3. Faculty of Engineering and Material Sciences, German University in Cairo, 11835 CAIRO, ARAB REPUBLIC OF EGYPT;4. Powder Technology Lab., Central Metallurgical Research and Development Institute, Elfelezat Street, Eltebbin, Helwan, 12422 CAIRO, ARAB REPUBLIC OF EGYPT |
| |
Abstract: | This paper investigates the physical and mechanical properties of copper‐nickel alloy (at 50 wt.%–50 wt.%) and pure copper, mixed with various types of reinforcement materials such as carbon nanotubes (0.5 wt.%–2 wt.%) as nanoparticles, silicon carbide (1 wt.%–4 wt.%) as microparticles. The acquired composite specimens characteristics were estimated such as microstructure, density, electrical and thermal conductivity, hardness, and compression stress properties to determine the suitable reinforcement percentage that has the best physical and mechanical properties with different main matrix material whether copper‐nickel mechanical alloying or pure copper powder. The micron‐sized silicon carbide and nanosized carbon nanotubes were added to improve the mechanical and physical properties of the composite. The electrical and thermal conductivity of pure copper alloy enhanced compared with the copper‐nickel alloy matrix material. The hardness and compression yield stress of both pure copper and copper‐nickel composites have enhancement values and for copper‐nickel base composites hardness and compression yield stress have enhanced with the most positive enhancement values to examined an optimum percentage of reinforcing material. |
| |
Keywords: | Carbon nanotubes pure copper powder ceramic powders SiC micro particles size powder metallurgy Kohlenstoffnanorö hrchen (CNTs) reines Kupferpulver Keramikpulver Grö ß e der SiC-Mikroteilchen Pulvermetallurgie |
|
|