Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wear resistance enhancement of electroless nanocomposite coatings via incorporation of alumina nanoparticles prepared by milling
Graphical abstract Display Omitted Highlights ► Al2O3 nanoparticles (13nm) were prepared by milling in high-energy density stirred bead mill. ► We prepared Ni–P–Al2O3 nanocomposite coatings by electroless plating using the nanoparticles. ► Incorporation of the nanoparticles improved wear resistance of the electroless coating. ► The nanoparticles prepared by milling can be used for the coatings instead of those by chemical methods.
Abstract Electroless Ni–P–Al2O3 nanocomposite coatings were deposited on steel surface from a plating solution with alumina (α-Al2O3) nano-particles prepared by mechanical milling in a high energy density ceramic stirred bead mill. The size and specific surface area of the nano-sized alumina particles were determined by acoustic particle sizer and nitrogen adsorption surface area analyzer. The phase structure, morphology and elemental composition of Ni–P–Al2O3 nano-composite coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. Effect of the nanoparticle concentration in the plating bath on the micro-hardness, wear resistance and corrosion resistance of the as-deposited and the heat-treated coatings was investigated. The results show that the incorporation of alumina nanoparticles can enhance the micro-hardness and wear resistance of electroless Ni–P–Al2O3 nanocomposite coatings, but affect the corrosion resistance.
Wear resistance enhancement of electroless nanocomposite coatings via incorporation of alumina nanoparticles prepared by milling
Graphical abstract Display Omitted Highlights ► Al2O3 nanoparticles (13nm) were prepared by milling in high-energy density stirred bead mill. ► We prepared Ni–P–Al2O3 nanocomposite coatings by electroless plating using the nanoparticles. ► Incorporation of the nanoparticles improved wear resistance of the electroless coating. ► The nanoparticles prepared by milling can be used for the coatings instead of those by chemical methods.
Abstract Electroless Ni–P–Al2O3 nanocomposite coatings were deposited on steel surface from a plating solution with alumina (α-Al2O3) nano-particles prepared by mechanical milling in a high energy density ceramic stirred bead mill. The size and specific surface area of the nano-sized alumina particles were determined by acoustic particle sizer and nitrogen adsorption surface area analyzer. The phase structure, morphology and elemental composition of Ni–P–Al2O3 nano-composite coatings were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), respectively. Effect of the nanoparticle concentration in the plating bath on the micro-hardness, wear resistance and corrosion resistance of the as-deposited and the heat-treated coatings was investigated. The results show that the incorporation of alumina nanoparticles can enhance the micro-hardness and wear resistance of electroless Ni–P–Al2O3 nanocomposite coatings, but affect the corrosion resistance.
Wear resistance enhancement of electroless nanocomposite coatings via incorporation of alumina nanoparticles prepared by milling
Li, Changjin (Autor:in) / Wang, Yanmin (Autor:in) / Pan, Zhidong (Autor:in)
10.12.2012
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 2013
| British Library Online Contents | 2011
| British Library Online Contents | 2013
| British Library Online Contents | 2011