“…The atmosphere used for the above said processes are mainly: Ar, N 2 ,H 2 , He, CH 4 ,NH 3 [10] or mixture of two gases [18,19]. Rotary Kiln [12], TG [4,20], EAF [2,10], Plasma [21,22], Microwave [23], Blast Furnace [24][25][26], Mechanical Alloying [27,28], Fluidized Bed Reactor [29,30], etc., were used as a reactor for reduction purpose. However, in the present study clay crucibles were used as a reaction chamber for reduction and electrically heated muffle furnaces are used as a source of heat.…”