Department of Material Science and Engineering

Department of Material Science and Engineering

 

Recent Submissions

  • Yaya, A.; Dodoo-Arhin, D. (Asian Research Publishing Network(ARPN), 2012)
    The influence of Bi2O3 and Sb2O3 doping on the microstructure and electrical characteristics of Zinc Oxide based varistor has been investigated. The as-sintered ceramic varistors with different compositions have been ...
  • Dodoo-Arhin, D.; Leoni, M.; Scardi, P. (Taylor and Francis, 2012)
    Copper oxide (CuO) nanorod-like structures made of spherical nanocrystals were synthesized at moderate temperature (80°C) starting from CuCl2•2H2O crystals in a water/n-heptane microemulsion stabilised by the nonionic ...
  • Dodoo-Arhin, D.; Vettori, G.; D’Incau, M.; Leoni, P.; Scardi, P. (Oldenbourg Wissenschaftsverlag, München, 2011)
    X-ray diffraction line profile analysis based on the recently developed Whole Powder Pattern Modelling was used to investigate the microstructure changes in Cu2O powders milled in a vibrating cup mill. The reduction in the ...
  • Scardi, P.; Leoni, M.; Dodoo-Arhin, D. (Trans Tech Publications, 2010)
    Recent advances in Line Profile Analysis of powder diffraction patterns must be paralleled by increasing attention to the quality and quantity of experimental data. The analysis of simulated data with different noise levels ...
  • Dodoo-Arhin, D.; Leoni, M.; Scardi, P.; Garnier, E.; Mittiga, A.; Falconieri, M. (Elsevier B.V., 2010)
    Cuprite (Cu2O) nanoparticles were synthesized at room temperature via reduction of CuCl2•2H2O by NaBH4 in water/n-heptane microemulsion stabilised by the non-ionic Brij30 surfactant. Whole Powder Pattern Modelling of the ...
  • Zhang, L.; Yang, S.; Damoah, L.N.W. (John Wiley & Sons, Inc., 2011)
    This paper reported the observation of inclusions in the steel of an ingot runner. Thermodynamic modeling was performed to study the formation mechanism and sources of inclusions. CFD modeling on fluid flow, heat transfer, ...
  • Wang, Y.; Zuo, X.; Zhang, L.; Li, S.; Dong, A.; Damoah, L.N.W. (AIST – Association for Iron and Steel Technology, 2010)
  • Damoah, L.N.W.; Dong, A.; Zhang, L.; Zhu, H.; Wang, C. (IEEE, 2010)
    This study investigated the non-metallic inclusions in Solar 2rade Silicon (SoG-Si), especially the distribution of inclusions in the top 15mm layer of multicrystalline silicon ingot. The SoG-Si ingot produced from directional ...
  • Dong, A.; Damoah, L.N.W.; Zhang, L.; Zhu, H. (IEEE, 2010)
    Non-metallic particles and the metallic impurity elements in the solar cell silicon have a strong detrimental effect on the conversion efficiency of the solar cell. Removing these impurities is one of the important tasks ...
  • Damoah, L.N.W.; Zhang, L.; Adegboyega, N.F. (TMS, 2010)
    The formation of the top solid layer on the molten aluminum in launders during refining and casting, constituting production loss, were experimentally, thermodynamically and kinetically investigated in the current study. ...
  • Zhang, L.; Damoah, L.N.W.; Li, S.; Abebe, W. (TMS, 2008)
    Ceramic Foam Filters (CFF) are used to remove inclusions from aluminium in laboratory experiments. Morphology and composition of inclusions in aluminium are identified using before and after filtration using optical ...
  • Zhang, L.; Damoah, L.N.W. (John Wiley & Sons, Inc., 2011)
    In the current paper, the Fe-rich phases in and their detrimental effect on aluminum alloys are summarized. The existence of brittle platelet β-Fe-rich phases lowers the mechanical properties of aluminum alloys. The methods ...
  • Dong, A.; Damoah, L.N.W.; Zhu, H.; Zhang, L.; Wang, C. (John Wiley & Sons, Inc., 2011)
    The characteristics of the top-cut solar grade silicon (SoG-Si) scraps produced from SoG-Si ingots were investigated using optical microscope observation, SEM-EDS analysis and automatic inclusion scanning (ASPEX). Particles ...
  • Zuo, X.; Damoah, L.N.W.; Zhang, L.; Schuman, T.; Kers, J. (John Wiley & Sons, Inc., 2011)
    Rapid technological innovation has propelled the use of electronic equipment leading to the generation of more and more waste electrical and electronic equipments (WEEE). Printed wiring board (PWB) is a component made of ...
  • Damoah, L.N.W.; Zhang, L. (John Wiley & Sons, Inc., 2012)
    The use of electromagnetic field to remove suspended particles from metals such as aluminum by pushing to the boundary has been well studied. However, the potential of this method is yet to be exploited for the removal of ...
  • Damoah, L.N.W.; Zhang, L. (John Wiley & Sons, Inc., 2012)
    Increasing demand for Solar Grade Silicon (SoG-Si) due to rising interest in renewable energy has lead to increased SoG-Si Top - cut scraps generated from the multi-crystalline silicon making process. Due to the high cost ...
  • Damoah, L.N.W.; Zhang, L. (John Wiley & Sons, Inc, 2012)
    Removal of inclusions from aluminum is a critical step during the production of high quality aluminum alloys. Electromagnetic purification method for the removal of inclusions has been proposed to complement the existing ...
  • Efavi, J.K.; Damoah, L.N.W.; Bensah, D.Y.; Arhin, D.D.; Tetteh, D. (2012)
    The possibility of fabricating porous ceramic bodies from kaolin using maize, rice, saw-dust, charcoal, millet and Styrofoam as pore formers have been explored in this work after chemical analysis of two kaolin deposits ...
  • Damoah, L.N.W.; Zhang, L. (2012)
    In order to remove impurity elements from molten aluminum, many processes, such as using inert gas, reactive gas, reactive powders, unreactive powders, slag, or their combinations, have been used during the past 30 years. ...
  • Zhang, L.; Gao, J.; Damoah, L.N.W.; Robertson, D.G. (2012)
    In this paper, the Fe-rich phases in and their detrimental effect on aluminum alloys are summarized. The existence of brittle platelet β-Fe-rich phases lowers the mechanical properties of aluminum alloys. The methods to ...

View more