Effect of Milling Time and Dispersant on Microstructures of Alpha Alumina Nanopowder Synthesized from Aluminium Dross Waste

Meor Yusoff Meor Sulaiman; Masliana Muslimin; Paulus Wilfred; E. M. Mahdi; D. Parimala

doi:10.4028/www.scientific.net/AMR.364.372

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Effect of Milling Time and Dispersant on Microstructures of Alpha Alumina Nanopowder Synthesized from Aluminium Dross Waste

Abstract:

The paper presents a study on the effect of milling time and addition of SLS dispersant on the crystallite and particle size reduction of α-alumina produced from aluminium dross waste. Wet milling was performed in high velocity planetary mill at speed of 1100 rpm and milled for 2 to 5 hours. XRD analysis shows both peak broadening and shifting occurred especially at longer milling time. The peak broadening effect was then used to calculate both the crystallite size and lattice strain. Samples milled with dispersant gave smaller crystallite size and the smallest crystallite value was 39.4nm obtained using 5 hours milling time. Similarly the mean particle size obtained for samples milled with dispersant gave smaller value and the smaller mean particle size obtained was 0.771 μm after 5 hours of milling.

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Periodical:

Advanced Materials Research (Volume 364)

Pages:

372-376

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.364.372

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Online since:

October 2011

Authors:

Meor Yusoff Meor Sulaiman, Masliana Muslimin, Paulus Wilfred, E. M. Mahdi, D. Parimala

Keywords:

Alpha Alumina, Crystallite Size, Dispersant, Milling Time, Particle Size

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