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Yermukhambetova A.,Nazarbayev University | Bakenov Z.,Nazarbayev University | Bakenov Z.,Institute of Batteries LLC | Zhang Y.,Institute of Batteries LLC | And 4 more authors.
Journal of Electroanalytical Chemistry | Year: 2015

Nanostructured magnesium nickel oxide Mg0.6Ni0.4O and alumina Al2O3 were studied as additives to sulphur/polyaniline (S/PANI) composites via wet ball-milling of sulphur and polyaniline followed by heat treatment. Metal oxide nanoparticles, which have small particle size, porous structure and high specific surface area to volume ratio, are expected to be catalytic for chemical reactions, including electron transfer and are able to adsorb lithium polysulphides. The composites were characterized by SEM and electrochemical methods. Cyclic voltammetry studies suggest that the alumina additive acts differently to the Mg0.6Ni0.4O. The results suggest that although the alumina additive improves the S/PANI composite performance as a lithium-sulphur battery cathode, the use of Mg0.6Ni0.4O is more effective. © 2015. Source


Mi P.,Tianjin Key Laboratory of Laminating Fabrication and Interface Control Technology for Advanced Materials | Mi P.,Hebei University of Technology | He J.,Tianjin Key Laboratory of Laminating Fabrication and Interface Control Technology for Advanced Materials | He J.,Hebei University of Technology | And 6 more authors.
Jinshu Rechuli/Heat Treatment of Metals | Year: 2015

Fe-based amorphous coating was prepared by plasma spraying process, and the microstructure and wear resistance of the coating prepared by different power were analyzed. The results show that the coatings have low porosity and higher thermal stability, high hardness and wear resistance. The coating has more amorphous structure when prepared by 30 kW, and the Fe2B and Mo6Co6C crystal phases are formed when the preparation power is 35 kW and 40 kW. The coating's hardness and friction coefficient increase with the increase of spraying power and the coating prepared by 35 kW has the excellent wear resistance. ©, 2015, Chinese Mechanical Engineering Society of Heat Treatment. All right reserved. Source


Mi P.-B.,Hebei University of Technology | Mi P.-B.,Tianjin Key Laboratory of Laminating Fabrication and Interface Control Technology for Advanced Materials | He J.-N.,Hebei University of Technology | He J.-N.,Tianjin Key Laboratory of Laminating Fabrication and Interface Control Technology for Advanced Materials | And 6 more authors.
Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment | Year: 2015

TiCN coating was prepared by reactive plasma spraying with graphite and carbon black as carbon sources. The feeds were studied by the TG-DSC, the constituent phase, microstructure, grain size and wear-resistance of the coatings were analyzed. The results show that TiC0.2N0.8, TiC0.7N0.3 phases prepared by carbon black and graphite are dense and the grain size of the coatings are 71.68 nm(TiC0.2N0.8), 59.44 nm(TiC0.7N0.3), respectively. The coatings have higher hardness and wear-resistance, with increasing carbon content, hardness and wear-resistance increase. The wear resistance of the TiC0.7N0.3 coating is better than the TiC0.2N0.8 coating. © 2015, Editorial Office of TRANSACTIONS OF MATERIALS AND HEAT TREATMENT. All right reserved. Source

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