Abstract
Biocompatible composites (Ti, Ta)C x + Ca3(PO4)2 for deposition of nanofilms onto load-bearing implants by ion-plasma sputtering were prepared from Ti + Ta + C + Ca3(PO4)2 mixtures by forced SHS compaction. The effect of Ta + C addition to green mixtures (characterized by parameter z) on the structure/phase formation in combustion products was explored. The addition of tantalum and carbon was found to have little or no influence on the burning velocity U and combustion temperature T c. Two thermal spikes exhibited by thermograms were associated with the occurrence of two consecutive reactions leading to formation of titanium and tantalum carbides. With increasing z, the grain size of (Ti, Ta)C was found to diminish, its relative density to decrease, while the hardness to markedly grow.
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Levashov, E.A., Rogachev, A.S., Kurbatkina, V.V. et al. Combustion and structure formation in the Ti-Ta-C-Ca3(PO4)2 system. Int. J Self-Propag. High-Temp. Synth. 16, 218–224 (2007). https://doi.org/10.3103/S1061386207040085
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DOI: https://doi.org/10.3103/S1061386207040085