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By annealing of precursors, SnO 2 nanorods or nanowires have been synthesized by the oriented aggregation of initial SnO 2 nanoparticles. Chlorine salts are very important for both preventing increase in size of the precursors and providing aqueous and kinetic circumstances that cause the oriented aggregation of the initial nanoparticles. The possible growth mechanism of SnO 2...
The authors present the results of nitriding of medium carbon steel at a low temperature of 573K by using the surface-alternating current nanocrystalline treatment (SACNT), which is much lower than conventional nitriding temperature (about 773K). The SACNT induces electrovalent bond to part by means of the iron ion transgressing, and the surface evolves to ultrafine grain layer. The nanostructured...
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