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Fine and ultra-fine powders are actively studied in a broad and interdisciplinary area of nanotechnology. This paper presents the complex of well-grounded solutions for direct production of nanopowders by the exploding wire method. The influence of initial conditions on the properties of powders is discussed. The basic factors are as follows: the level and the uniformity of heating, the heating rate,...
Nanostructuring is one of the effective approaches to lower the thermal conductivity of materials. Nanostructured skutterudite-related compounds CoSb3, Fe0.5Ni0.5Sb3, Fe0.25Ni0.25Co0.5Sb3 and Te-doped CoSb3 were synthesized by a solvothermal route. The bulk materials were prepared by hot pressing or spark plasma sintering from the solvothermally synthesized nanopowders. The thermal conductivity values...
Fe/Cr multilayer films, [Fe (21??)-Cr (13??)]??30, were deposited on MgO (100) single crystal and glass substrates by vacuum evaporation, with the substrate temperature varied. The resistivity under zero field was smallest, and the magnetic contribution was largest, for samples prepared with the substrate temperature between 150??C and 200??C, which accordingly exhibited the largest magnetoresistive...
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