| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to electron-beam production of ultra dispersed materials. Proposed method comprises heating the substance by relativistic electron beam at atmospheric pressure to vapor-phase state, condensing vapors by cooling them in gas flow and separating the formed two-phase system. Two single-elements substances are subjected to heating to form a homogeneous melt the vapors of which form the particles of solid composite nanopowders of the core-shell type. Note here that condensation temperature of one substance is lower than that of the second substance and higher than condensation temperature of both substances. Note also that heating is carried out stage-by-stage, first, to produce homogeneous melt, and, second, to reach vapor-phase state on increasing electron beam power. ^ EFFECT: nanoparticles coated by thin shell from different substance, reduced sintering. ^ 1 tbl, 7 dwg, 1 ex |
