Faceted, microcrystalline coatings of tungsten, molybdenum and their composites are fabricated for the first time using a novel redox reaction route. The method uses a hot filament to initiate pyrolytic reactions in desired gas mixtures. The method offers many technologically useful features-e.g. high growth rates, and hence fabrication of very thick coatings; no hazardous precursors are needed; control of the morphology/composition of the composites-which are not offered by other conventional methods of thin film fabrication.
- Ceramics and refractories
- CVD coatings