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White aluminum (Al) dross is the waste or by-product generated from the smelting of Al. Improper disposal of this waste will affect the sustainability of the environment. This study was aimed at investigating the feasibility of Al dross as a thermoplastic filler. Various content of Al dross (10–40 wt.%) was blended with polypropylene (PP) using an extruder. An improvement in thermal and flame resistance...
A nano-titanium dioxide (nano-TiO2) powder, with Zr (0.5–1 %) and Nb (0.5–1 %) impurities, is fabricated using a modified hydrothermal method, with low-grade mineral precursors. Samples were then sintered at 600, 800, and 1,000 °C, then analysed using XRD (crystallite size and phase conversion temperature) scanning electron microscope (SEM) (morphology), N2 adsorption–desorption isotherms (surface...
Alumina (Al2O3) is an aluminium compound with many crystalline forms or polymorphs. Alpha alumina is the only stable form amongst the different polymorphs. The biggest usage of alpha alumina is the electronic sector that accounts for 64.7% of the total advanced ceramics applications in year 2005 [1]. A majority of this is in the form of alumina capacitors, insulator and also packaging materials. Another...
Free standing nanowires are produced from synthetic rutiles which are treated with NaOH at 500°C for 4 hours, followed by repeated water washing [1-5]. The samples are treated again with 40% and 50% of NaOH (leaching process). This is the critical part of forming the wire structure. Diameter of the wires from 20-30nm and length of more than 4μm are produced from this process. Products are characterized...
Bimetals (Na, Mg, Li, Cr) doped nanotitania was prepared using a modified hydrothermal method from a titanium mineral. The samples, along with a commercial sample, were then annealed from 873 K to 1273 K, at 100 K intervals. Both samples were characterized using a variety of methods such as the XRD (crystallite size and phase conversion temperature), SEM (morphology) and BET (surface area). It was...
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