2012-5-12 · area equal to 1, 0.3, 2, and 1.5-2 µm, and 2.47, 10, 1-2 and 0.5-1.5 m2/g, respectively. The thickness below which no cracking was observed was 125, 316 and 56 µm, for the first three powders, whereas surprisingly a layer 5 mm thick was deposited without observing cracks in the case of TiB2. This result supports the influence of the powder