NITRIDE AND CARBIDE COATINGS SYNTHESIS ON THE SURFACE OF REFRACTORY METALS BY LASER ACTION A. A. UGLOV, M. B. IGNAT'EV, A. G. GNEDOVETS et I.YU. SMUROVJ. Phys. Colloques, 50 C5 (1989) C5-727-C5-733DOI: https://doi.org/10.1051/jphyscol:1989586