Исследовано влияние механической обработки на структуру и фазовый состав порошковых смесей Ti-10%Ca 3 (PO 4 ) 2 . По тех-нологии прессования и вакуумного спекания получены керамические электродные материалы Ti-Ti 3 P-CaO с высокой одно-родностью компонентов и остаточной пористостью 5-7 %. Изучена эрозионная способность спеченного металлокерами-ческого электрода Ti-Ti 3 P-CaO при импульсной электроискровой обработке титановых подложек и проведено сравнение с электродами TiC 0,5 -Ti 3 PO x -CaO, изготовленными методом самораспространяющегося высокотемпературного синтеза. По-крытия, полученные при использовании электродов Ti-Ti 3 P-CaO и TiC 0,5 -Ti 3 PO x -CaO, характеризовались высокой сплошнос-тью, толщиной до 20 мкм, микротвердостью до 3,6 ГПа, шероховатостью 3,3-4,6 мкм, наличием и равномерным распределе-нием биоактивных элементов кальция и фосфора. 2015. No. 4. С. 45-58. DOI: dx.doi.org/10.17073/1997-308X-2015 Peculiarities of formation of sintered electrodes of the Ti-Ti 3 P-CaO composition and their application in technology of pulsed electric-discharge machining of titaniumThe influence of mechanical treatment on the structure and phase composition of Ti-10%Ca 3 (PO 4 ) 2 powder mixtures is investigated. The Ti-Ti 3 P-CaO ceramic electrode materials with a high uniformity of components and residual porosity of 5-7% are fabricated according to the pressing and vacuum sintering technology. The erosion ability of the Ti-Ti 3 P-CaO metal-ceramic electrode under the pulsed electric-discharge machining of titanium substrates is investigated and compared with the TiC 0,5 -Ti 3 PO x -CaO electrodes fabricated by self-propagating high-temperature synthesis. Coatings fabricated when using Ti-Ti 3 P-CaO and TiC 0,5 -Ti 3 PO x -CaO electrodes are characterized by high continuity, thickness up to 20 μm, microhardness up to 3,6 GPa, roughness to 3,3-4,6 μm, and the presence and uniform distribution of calcium and phosphorus bioactive elements.Keywords: pulsed electric-discharge machining, planetary ball mill, sintering, bioactive coating, ceramics.
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