Abstract The focus of this study is to see if Friction Stir Processing can improve the properties an aluminium alloy with Boron Nitride (BN) particles on surface. (FSP) a new surface alteration technique that uses friction cause plastic deformation, resulting in grain refining and improved mechanical properties. To process 2024 plates, straight cylinder tool was used under varying parameters co...

Abstract This study compares two tools, HSS M42 and TiN Coated twist drill bits, in order to determine which tool has the better material removal rate (MRR). Drill bits were of high speed steel (HSS M42) use Novel coating Titanium Nitride on this study. The machining is done a experimental specimen made aluminium alloy AA6063. both tools measured CNC drilling sets 20 specimens each. Spindle spe...

A crack-free indium gallium nitride (InGaN) based light emitting diode (LED) grown on silicon (Si) substrate was successfully demonstrated by introducing aluminium nitride/gallium (AlN/GaN) superlattice structure (SLS) in the growth of LED. The luminescence and crystalline properties LED were discussed. From photoluminescence (PL) surface mapping measurement, emission wavelength (453 nm) almost...

Aluminum nitride (AlN) is considered one of the most desirable materials for integrated circuits and electronic packaging substrates. However, raw AlN powder reacts easily with water, forming Al(OH)3 or AlOOH on surface hindering development aqueous tape casting process preparing ceramic In this study, hydrolyzed polymaleic anhydride (HPMA) was used to modify powder, which has good w...

1. Plasma aluminium concentration and urinary aluminium excretion were monitored for 4.5 h in rats after the administration of 25 micrograms or 800 micrograms of aluminium as an intravenous bolus, either as aluminium chloride or as aluminium citrate (i.e. aluminium chloride together with sodium citrate). 2. Immediately after the bolus aluminium administration, the plasma aluminium concentration...