WC-CO Based Scratch Tools Production and Characterization for Brick Factory

Authors : Muzaffer ERDOGAN, Ayhan EROL, Ahmet YÖNETKEN

Pages : 591-596

View : 13 | Download : 6

Publication Date : 2014-01-02

Article Type : Research Paper

Abstract :The main objective of this study is to produced WC-Co-Ni ceramic-metal composites Electroless Ni coated WC-Co powders were used in powder metallurgy techniques for making samples. 2 μm - 10μm micron grain size of WC powders and 10μm grain sized Co powders obtained from Sigma Aldrich Company in this work. Co-WC powders were cold pressed under 400bar pressure before sintered 1200oC -1400oC in microwave furnace. 90% N2 + 10% H2 mixed atmosphere were used during sintering. Mechanical tests and metallographic analysis were investigated for characterization of composite materials after sintered. Experimental results carried out for 1300°C suggest that the best properties as σmax and hardness insert ignore into journalissuearticles values(HB); were obtained at 1300°C and the microwave furnace sintering WC and Co powders is a promising technique to produce ceramic reinforced Co composites.
Keywords : Powder Metallurgy, CeramicMetal Composites, Microwave Powder Sintering, Scratch Tools