To avoid the defects caused by the hydrogen evolution and improve the corrosion and wear properties of the electroplated films in the traditional aqueous bath electrodeposition,a supercritical carbon dioxide(Sc-CO2)em...To avoid the defects caused by the hydrogen evolution and improve the corrosion and wear properties of the electroplated films in the traditional aqueous bath electrodeposition,a supercritical carbon dioxide(Sc-CO2)emulsion was proposed to electrodeposite ternary nanocrystalline Co-Ni-P alloy films.Microstructure,corrosive and tribological properties of the Co-Ni-P films were investigated and compared with the ones electroplated by conventional method.The results show that the Co-Ni-P films produced with Sc-CO2assisted electrodeposition exhibit a more compact microstructure.The preferred orientation plane of hcp(110)for the Co-Ni-P films produced in conventional aqueous bath is changed to be hcp(100)for the one prepared in emulsified Sc-CO2bath.The microhardness,corrosion resistance and tribological properties of the Co-Ni-P films are substantially improved with the assistance of Sc-CO2in the electrodeposition bath.展开更多
The factors affecting storage modulus (Ec') and quantitative characterization of polymer composites filled with inorganic particles were discussed in this paper. On the basis of Eshelby’s method and Mori’s work,...The factors affecting storage modulus (Ec') and quantitative characterization of polymer composites filled with inorganic particles were discussed in this paper. On the basis of Eshelby’s method and Mori’s work, an equation describing the relationship between the Ec' and the filler volume fraction, particle geometry as well as interfacial morphology was proposed. The Ec' of the glass bead filled low-density-polyethylene (LDPE/GB) composites was estimated by means of this equation under experimental conditions with temperature range of –150-100?C, frequency of 1 Hz and the amplitude of 0.6 mm, and compared with other equations proposed in literature. The results showed that the predictions for this equation were close to the measured data from the LDPE/GB composites.展开更多
基金Project (2015A030306026) supported by the Natural Science Funds for Distinguished Young Scholar of Guangdong Province,ChinaProject (51275176) supported by the National Natural Science Foundation of China+1 种基金Project (2016A010102009) supported by the Science and Technology Planning of Guangdong Province,ChinaProject (201707010055) supported by the Science and Technology Planning of Guangzhou City,China
文摘To avoid the defects caused by the hydrogen evolution and improve the corrosion and wear properties of the electroplated films in the traditional aqueous bath electrodeposition,a supercritical carbon dioxide(Sc-CO2)emulsion was proposed to electrodeposite ternary nanocrystalline Co-Ni-P alloy films.Microstructure,corrosive and tribological properties of the Co-Ni-P films were investigated and compared with the ones electroplated by conventional method.The results show that the Co-Ni-P films produced with Sc-CO2assisted electrodeposition exhibit a more compact microstructure.The preferred orientation plane of hcp(110)for the Co-Ni-P films produced in conventional aqueous bath is changed to be hcp(100)for the one prepared in emulsified Sc-CO2bath.The microhardness,corrosion resistance and tribological properties of the Co-Ni-P films are substantially improved with the assistance of Sc-CO2in the electrodeposition bath.
文摘The factors affecting storage modulus (Ec') and quantitative characterization of polymer composites filled with inorganic particles were discussed in this paper. On the basis of Eshelby’s method and Mori’s work, an equation describing the relationship between the Ec' and the filler volume fraction, particle geometry as well as interfacial morphology was proposed. The Ec' of the glass bead filled low-density-polyethylene (LDPE/GB) composites was estimated by means of this equation under experimental conditions with temperature range of –150-100?C, frequency of 1 Hz and the amplitude of 0.6 mm, and compared with other equations proposed in literature. The results showed that the predictions for this equation were close to the measured data from the LDPE/GB composites.
