Evaluating possibilities of Self-propagating High temperature Synthesis (SHS) for substitution of Ge for Si in MoSi2

International audience; Self-propagating High temperature Synthesis is used to study materials obtained from Mo+Si+Ge system. Si1-xGex is known to be one of the most efficient thermoelectric but its use is limited by high price and scarcity of germanium, relatively low value of its ZT and high temperature of working. One way to increase its ZT consists in increasing the diffusion of the acoustic phonons by inserting silicides nano-inclusions of MoSi2 inside the Si1-xGex matrix. In this sense it is important to study the Mo(Si1-xGex)2 solid solutions.