20080268178 | METHOD OF PRODUCING ENCAPSULATED NANOPOWDERS AND INSTALLATION FOR ITS REALIZATION - A method and installation for making nanopowders of materials on the base of pure metals of Be, Mg, Al, Ca, Sc, V, Cr, Zn, Fe, Ni, Cu, Ti, Si, Co, Pt, Au, Zr, Mn, Sr, Y, Nb, Mo, Ag, Ba, La, Hf, Ta, W, Pt, Au, Bi, Ce, Sm or Dy, their alloys and chemical compounds of the metals with elements selected from the group consisting of B, C, O and Si, encapsulated into a sheath of salt selected from the group consisting of NaCl, NaF, LiCl and LiF or their mixture, comprises the evaporation of material and a halogenide of alkali metal and condensation of a mixture of their vapor phases on the substrate surface performed simultaneously in a closed evacuated volume. In the lower part of the closed volume are arranged the crucibles with ingots of the salt and material, above which a substrate is arranged which can move in a plane parallel to the surfaces of melts of material and salt towards the side of one or another ingot, a screen is located between said crucibles on one side and a substrate on another side, the screen having at least two holes whose sizes are controlled by gates, and electron and/or laser beams are used as a source for heating the salt and material up to the temperature of their evaporation. | 10-30-2008 |