Abstract <p>Coatings in the Zr–Mo–Si–B and Hf–Mo–Si–B systems were obtained by spark plasma sintering (SPS) using ZrSi₂–MoSi₂–ZrB₂ and HfSi₂–MoSi₂–HfB₂ heterophase powders manufactured by the self-propagating, high-temperature synthesis method. The Zr–Mo–Si–B and Hf–Mo–Si–B coatings were characterized by a thickness of 1.3–1.4 mm, had a dense structure, and contained phases in wt %: 61 o-ZrSi₂, 15 h-ZrB₂, 15 t-MoSi₂, 8 m-ZrO₂, 1 c-ZrB and 53 o-HfSi₂, 14 h-HfB₂, 19 t-MoSi₂, 9 m-HfO₂, and 5 c-HfB, respectively. The coating hardness was 15–16 GPa, the elastic modulus was 265–268 GPa, and the elastic recovery was 38–39%. The Hf–Mo–Si–B coating was characterized by the minimal values of (a) specific wear rate of 4.2 × 10^–5 mm³ N^–1 m^–1 under sliding friction conditions, (b) crater volume of 5 × 10³ μm³ under impact-dynamic tests, and (c) oxidation rate of &lt;2.3 × 10^–3 mg/(cm² s) at 1200°C. The SPS coatings are superior to niobium substrates in wear resistance by ~25 times and oxidation resistance by several orders of magnitude.</p>