Development of Cu-SiC Composite for Electrical Discharge Machining Electrode Using Powder Metallurgy Technique

Autor: Azreen, A.R. Fatimah, Sutjipto, A.G.E., Souad, A.M. Al-Bat’hi
Zdroj: Advanced Materials Research; October 2012, Vol. 576 Issue: 1 p203-207, 5p
Abstrakt: In this research, composites containing 10-50 vol% SiC whiskers reinforced Cu matrix were fabricated using powder metallurgy technique. The mixtures were blended in a ball milling machine with the addition of ethanol for 2 hours at 150 rpm. The mixtures were allowed to dry in an oven at temperature of 40 °C. Then, the mixtures were uniaxially compacted into a cylindrical pallet of Φ 13.5 x 2 mm under compaction pressure of 472 MPa. It was followed by sintering in vacuum furnace at temperatures of 800-950 °C for 4 hours. The density, microhardness, electrical resistivity, thermal conductivity and microscopy analysis of the sintered composites were studied and reported in this paper.
Databáze: Supplemental Index