This paper reports the -SiC particles surface modification by copper Electroless Plating (EP), as well as a morphological characterization of Al-Si reinforced composite obtained with such modified particles and consolidated by compoforging. The -SiC particles were obtained by thermal degradation of organic waste. The compoforging technique is a hybrid between the compocasting process and semi-s...

In vitro cultures of human bone marrow have been used to study normal haemopoiesis and to gain information to aid in the treatment of leukaemia patients. A workshop on the development of semi-solid bone marrow cultures was held for two days in Washington on 15 and 16 August 1976. The participants of this workshop discussed some of the technical problems associated with semi-solid cultures of hu...

Semi-solid forming processes are now used for producing near net shape parts especially in the automotive and aircraft industries. Non Newtonian rheology of semisolid alloys and its dependence on the various parameters such as reheating cycle, method used to produce non-dendritic structure, thermo-shear history etc. have made the simulation of the flow behavior of semisolid material a difficult...

Lie symmetry method is applied to find analytic solutions of initial-boundaryvalue problems of transient conduction in semi-infinite solid with constant surface temperature or constant heat flux condition. The solutions are obtained in a manner highlighting the systematic procedure of extending the symmetry method for a PDE to investigate BVPs of the PDE. A comparative analysis of numerical and...

Today's society relies on energy storage a day-to-day basis, e.g. match production and demand from renewable sources, power variety of electronics, enable emerging technologies. As result, vast range technologies has emerged in the last decades. Among them, rechargeable Zn–Air batteries have held great promises for long time. However, severe challenges related to reversible O2 reactions poor cy...

The addition of 1% In to LEC GaAs has been reported to reduce the dislocation density in this material; similar data exists for Sb doping. Several effects have been inferred to explain these phenomena, the most prevailing one stating that the solid stoichiometry is affected by an as yet unknown mechanism. Similar postulations have been made to explain the growth of semi-insulating GaAs. A therm...

Al-7Si-0.5Mg aluminum alloy semi-solid slurry with good spherical grains was prepared by gas induced process (GISS) and the effects of both holding time medium addition on microstructure were investigated. These two parameters have a great influence solid fraction, size sphericity grains. With increased from 85 s to 270 s, phase fraction decreased ~0.77 ~0.67, average grain ~95 μm ~225 shape fa...