tVarious tungsten (W) coating techniques have been used for the application of plasma facing material innuclear fusion devices, which resulted in limited success. In this study, a dual-process W coating structurewas developed on a graphite substrate to improve the thermal performance of the coating structure. Thedual-process coating structure consisted of a thin (∼7 m) multilayer W/Mo physical vapor deposition(PVD) coating layer deposited on top of the relatively thick (∼160 m) plasma spray (PS) W coating ona graphite substrate panel. Then the coated sample was exposed to plasma heat flux of 1–3 MW/m2for300 s. With addition of a thin surface PVD coating layer, the microstructure change in underlying PS Wcoating was substantially reduced compared to the simple PS W coating structure. The thickness of overallcoating structure was maintained for the dual-process PVD/PS coated samples after the thermal loadingtests, while a significant reduction in thickness due to surface erosion was observed for the simple PSW coated samples. The improvement in surface erosion resistance in the dual-process coating structurewas discussed in view of the characteristics of PVD and PS coating layers.