TY - JOUR AB - We present a new method for retarding the oxidation rate of hardmetals. By diffusion impregnating a WC-FeCr hardmetal with silicon, we manufacture two-layered silicide coatings consisting of an FeSix outer crust and WSi2 beneath. The structure results from a preferential reaction between silicon and the metallic binder. The FeSix outer layer is crucial to providing oxidation resistance as when exposed to oxygen it passivates, forming a protective SiO2 surface film – while simultaneously preventing exposure of the underlying WSi2, which is known to oxidise in an active manner. Our analysis shows the coating method is applicable to various hardmetals structures. AU - Humphry-Baker,S AU - Lee,WE AU - Peng,K DO - 10.1016/j.ijrmhm.2017.03.009 EP - 143 PY - 2017/// SN - 0958-0611 SP - 135 TI - Oxidation resistant tungsten carbide hardmetals T2 - International Journal of Refractory Metals and Hard Materials UR - http://dx.doi.org/10.1016/j.ijrmhm.2017.03.009 UR - https://www.sciencedirect.com/science/article/pii/S0263436816306199?via%3Dihub UR - http://hdl.handle.net/10044/1/45691 VL - 66 ER -