Patent ID: 8802191

Claim:
A method of applying coatings to a surface, the method comprising: cold-spraying a gas flow at supersonic speed onto a surface of an object, thereby forming a coating on the surface, the gas flow comprising a mixture of gas with a powder of a bulk material selected from the group consisting of: a) alloys, pseudo alloys, and powder mixtures of Nb, Ta, W, or Mo with (i) each other, or with Ti or Zr, or (ii) 2-30 wt. % of Co, Ni, Rh, Pd, Pt, Cu, Ag or Au; or b) binary alloys, binary pseudo alloys, and binary powder mixtures of 2-50 wt. % Nb, Ta, W, or Mo with each other or with Ti or Zr, wherein (i) the powder has a particle size of from 0.5 to 150 μm and an oxygen content of less than 1000 ppm, and (ii) the coating has a density of at least 97% of a density of the bulk material.