International Journal of Self-Propagating High-Temperature Synthesis. Vol. 30, No. 2, Pages 87-93, 2021

G. A. Pribytkov^a^, *, A. V. Baranovskiy^a^,^b, I. A. Firsina^a, V. V. Korzhova^a, M. G. Krinitcyn^a^,^b^, **, and E. N. Korosteleva^a

^aInstitute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Tomsk, 634055 Russia

Correspondence to: *e-mail: gapribyt@mail.ru
Correspondence to: **e-mail: krinmax@gmail.com

Abstract—Warmup of mechanically activated Ti–xC powder mixtures (x = 1.0, 2.1, 4.2, and 6.3 wt %) in a furnace preheated to 800°C was found to result in thermal explosion (volume reaction) in mixtures with x = 4.2 and 6.3 wt %. Activated powder mixtures and combustion products were characterized by XRD, optical metallography, and SEM/EDX. Combustion products represented metal-matrix Ti–TiC composites containing different amounts of strengthening agent. Our results may turn interesting to those engaged in deposition (cladding) of protective Ti–TiC coatings using reactive Ti–C mechanocomposites as a starting material.

Keywords: thermal explosion, combustion synthesis, mechanical activation, Ti–xC system, Ti-matrix composite

Ti–TiC Composites by Thermal Explosion in Mechanically Activated Ti–xC Powder Blends (x = 1.0–6.3 wt %)