TiB2anti-oxidation ceramic coatings were successfully synthesised on a Mo substrate by using chemical vapor deposition (CVD). A scratch test was performed to measure the adhesion strength of the TiB2ceramic coatings to the Mo substrate. The results indicated good adhesion between the two materials; the adhesion strength was 125mN. Furthermore, high-temperature oxidation tests indicated that the CVD TiB2ceramic coating protected the Mo substrate against oxidation up to 900°C. Isothermal oxidation experiments revealed that the Mo substrate covered with a 13-μm-thick TiB2ceramic coating was protected against oxidation for a duration of 5h. The oxidation kinetics followed a parabolic law for the first 2.5h and a linear law in the next 2.5h.
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