. . "However, a metal causing a silicide reaction to occur at a higher temperature than Ni, i.e., for example, one of the following metals capable of forming a silicide having a higher melting point than Ni2Si or NiSi, are preferably used as the alloyed metal B: vanadium (V); molybdenum (Mo); cobalt (Co); niobium (Nb); tantalum (Ta); tungsten (W); zirconium (Zr); manganese (Mn); iron (Fe); iridium (Ir)" . .