Multicomponent coating for enhanced oxidation resistance of tungsten
The development of robust high temperature oxidation resistant coatings for tungsten was evaluated for a Mo-Si-B coating system that was applied by a two step process. The synthesized coating shows a graded structure composed of various amounts of molybdenum and tungsten disilicide as well as an aluminoborosilica top layer. Oxidation tests conducted at 1100-1400°C demonstrate that the coating provides effective oxidation protection for tungsten. Furthermore, the Mo-Si-B coatings provide an enhanced oxidation resistance compared to that for W-Si-B-coatings or WSi 2 coatings.
Coating, Disilicide, Mo-Si-B, Oxidation, Tungsten
Lu-Steffes, O. J., R. Sakidja, J. Bero, and J. H. Perepezko. "Multicomponent coating for enhanced oxidation resistance of tungsten." Surface and Coatings Technology 207 (2012): 614-619.
Surface and Coatings Technology