Field activated sintering (FAS) was employed to fabricate dense bulk MoSi 2 from Mo and Si powders. During the FAS process, Si was melted first, and then Mo was dissolved leading to a precipitation of MoSi 2 . A eutectic reaction of MoSi 2 –Mo 5 Si 3 resulted from a combined effect of Mo–Si exothermic reactions and field induced Joule heating. With hyper-stoichiometric amount of Si (Mo/Si=1:2.06), the FAS MoSi 2 is free of Mo 5 Si 3 phase. Subsequently, an un-lubricated sliding wear test of MoSi 2 against carbon steel was conducted. Both normal load and temperature have crucial points related to a transition from mild to severe wear. Sliding speed and relative density have a negative effect on wear rate. In addition, at room temperature the wear is with a protective layer composed of oxide and transferred substance, whereas poor oxidation resistance leads to spalling of the layer and brittle fracture at an elevated temperature up to 500°C.