The mechanism of sintering and particular of the structure formation in the liquid phase sintering of sintered abrasive magnetic powder that was silicon carbide as abrasive and carbonyl iron powder as magnetic were studied, and investigated the microstructural development at three different pressures and at constant sintering temperature. The specimens were prepared through powder metallurgy route. The weight percentage of silicon carbide and carbonyl iron powder was kept uniform that is 1:1 weight/volume respectively. During the preparation of specimens the holding time was investigated to keep green compact from deforming before sintering. Micro hardness testing was performed by Vickers hardness tester and density was calculated by Archimedes principle. The changes in microstructure and its morphology were studied by using scanning electron microscopy (SEM) at different magnification. The structure of silicon carbide was thoroughly studied and obtained the crystalline structure after sintering. There was exponential increase in the micro-hardness at 5 ton, 7 ton, and 9 ton respectively.as well as the density also increases with increasing compaction pressure. Particle size of pure CIP ranges from 1–4 μm, most of the particles are in the range of 3 ~ 4 μm.
Sintering, SEM, CIP, Morphology, Grain size.
Shiv Dayal Dhakad; Ankit Bansal; Harneet Saggu; Mayank Dwiedi, Analysis and Characterization of Iron Doped Sintered Silicon Carbide without Binder in through Powder Metallurgy Route, HCTL Open International Journal of Technology Innovations and Research (IJTIR), Volume 14, April 2015, eISSN: 2321-1814, ISBN (Print): 978-1-62951-946-3.