Characterization of CoTi Intermetallic Materials Produced by Electric Current Activated Sinte

İngilizce (OpenAlex)

In the present work, the characterization and production of CoTi intermetallic materials produced by electric current activated sintering under 300 MPa uniaxial pressure in open air at 2000 A for 6 min was investigated.Cobalt powder with 10 µm size and titanium powder < 40 µm size having 99.9% and 99.5% purity, respectively, were used.The elemental powders were mixed in the stoichiometric ratio corresponding to the CoTi intermetallic, in a molar proportion of 1:1.Scanning electron microscopy and X-ray diraction analysis were used to characterize produced samples.In microstructural examinations it was found that the sample has multi-phase microstructure.X-ray diraction studies revealed that the phases are CoTi, CoTi2, TiCo2, and CoTiO3.The relative density of test materials measured according to Archimedes' principle was 87.6%, and the microhardness of materials was about 646.74 HV0.1.