Study of the interaction between a zirconium thin film and an EN C100 steel substrate: Temperature effect

The obtained results showed a progressive transformation of zirconium film to zirconium carbide. Carbon atoms diffusion from substrate toward the film induced this transformation. The sample annealed at 900 °C exhibited the best mechanical properties (H = 17 GPa and E = 220 GPa). Samples treated at higher temperature were affected by oxidation and high microporosity. Even if the conversion is incomplete, annealing significantly promotes adhesion of the film on the substrate.