and hard metal substrates by magnetron sputtering of three targets. These coatings were
subjected to annealing to final temperatures in the range from 500° C to 1000° C. It was
found that the as deposited Mo-BC coatings exhibited hardness of∼ 20 GPa,
nanocomposite microstructure with very fine grains (∼ 2 nm) and low degree of crystallinity.
The X-ray diffraction and transmission electron microscopy together with selective area …