| Abstract: | An increase in grain size during deposition occurs in physical vapor deposition. Columnar grain structures result as the coating thickens beyond the point of constant grain size (>25 μm). As the deposition is taking place, the grain size of the Ti coating increases from that on the order of 0.01 (Jim to that greater than 1.0 μm. At a certain critical thickness during deposition, tc, the grain size stabilizes. This study examines the minimum coating thickness required to produce the ultimate grain size. Then this investigation relates the critical thickness to the texture of the coating. |
