TiB2 COATINGS ON PHOSPHOR BRONZE PLATES BY CVD AND THEIR PROPERTIES.

Article abstract of DOI:10.1016/0022-5088(88)90418-3

A phosphor bronze plate was coated with a thin layer of TiB//2 from a gas mixture of TiCl//4, BCl//3, H//2 and argon at temperatures of 580-850 degree C. The oxidation and corrosion stabilities were examined. Uniform and adherent TiB//2 layers were obtained on the phosphor bronze plate in the temperature range of 600-700 degree C. The deposition rates were 1. 1 mu m H** minus **1 and 2. 2 mu m h** minus **1 at temperatures of 700 degree C and 750 degree C respectively. Tib//2-coated phosphor bronze plates were stable to oxidation at temperatures below 600 degree C and were slightly affected by 3. 2 N HNO//3 at room temperature and concentrated HCl at 60 degree C.