Formation of the complete range of Ti5Si3−xGex solid solutions via mechanically induced self-sustained reactions

Abstract

a b s t r a c tThe complete range of Ti 5 Si 3 eTi 5 Ge 3 solid solutions was synthesised from elemental mixtures of Ti, Si, and Ge under an inert atmosphere via mechanically induced self-sustaining reactions (MSR). The stoichiometry of Ti 5 Si 3Àx Ge x solid solutions was controlled by adjusting the Si/Ge ratio of the initial mixture. The chemical composition and lattice parameters of the materials confirmed that Ti 5 Si 3 eTi 5 Ge 3 solid solutions with good chemical homogeneity could be produced via MSR.

Hot-pressing of (Ti, Mt)(C, N)–Co–Mo 2 C (Mt = Ta, Nb) powdered cermets synthesized by a mechanically induced self-sustaining reaction

“…A mechanically induced self-sustaining reaction (MSR) has been proven to be an attractive and affordable alternative to the conventional methods for producing advanced ceramics [7][8][9], ceramic matrix composites [10][11][12], ceramic-metal composites [13][14][15] and intermetallic compounds [16][17][18]. An MSR is a simple and low-energy-cost procedure that produces fine and homogeneous powders.…”

“…This method, similar to selfpropagating high-temperature synthesis (SHS) [19,20], uses the strong exothermic character of the reactant powder mixtures to promote self-sustaining reactions induced by the mechanical energy supplied by high-energy ball mills [21]. It has been shown that the MSR technique allows obtaining complex solid solutions in a consistent and direct manner, with a high control of the chemical composition and microstructure [12,16,22].…”