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Kowsiridze, Z., Tabatadze, G., Hainrich, U. and Mestvirisvili, Z. (2012) Improvement of Boron Carbide Mechanical Properties in B4C-TiB2 and B4C-ZrB2 System. The 4th International Congress on Ceramics, Chicago, 15-19 July 2012, 65.

has been cited by the following article:

  • TITLE: Metal-Ceramic Smart Composite in Ti(C,N)-Ni-Mo-W System

    AUTHORS: Z. Kovziridze, N. Nizharadze, G. Tabatadze, E. Nikoleishvili, M. Mshvildadze

    KEYWORDS: Metal-Ceramic, Composite, Cutting Material, High-Temperature, Heatproof, Micro Hardness

    JOURNAL NAME: Journal of Electronics Cooling and Thermal Control, Vol.6 No.2, June 7, 2016

    ABSTRACT: Goal: Low wolfram-containing cutting composite was obtained by fusion of titanium carbonitride and high melting temperature binding metallic phase. Method: The composite was obtained via compaction and further sintering in vacuum furnace at 1600°C under 10-3 Pa pressure. Phase analysis was performed on X-ray apparatus “DRON-3”; microstructure was determined by electron microscope NANOLAB-7, microhardness by MUCKE-mark microhardness meter; relative resistance of cutters was evaluated at similar modes of cutting according to distances they passed; experiments were carried out on turning lathe. Results: Physical-mechanical characteristics of the obtained composite are: σbend, = 1000 - 1150 MPa, σbend1000°C = 600 MPa, HV = 14 GPa; HV1000°C = 6.5 GPa. High speeds of cutting and high temperatures resistance of cutters made by the obtained composites exceeds 1.5 - 2-folds that of cutters made of the known BK8 and KNT20 hard alloys. Conclusion: Its application is recommended in hot steel treatment by cutting, for removal of the so-called burrs, as well as in steel treatment by cutting during pure and semi-pure operations. It can also be used in jet engines, chemical industry apparatuses, electric-vacuum devices, in industry of responsible details of rockets, nuclear reactors, flying apparatuses.