Effect of Dispersants on Microstructures of Nano Alpha Alumina Developed from Aluminium Dross Waste

S. Anis Sofia; Noorasikin Samat; Meor Yusoff Meor Sulaiman

doi:10.4028/www.scientific.net/AMR.1115.378

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1115Effect of Dispersants on Microstructures of Nano...

Effect of Dispersants on Microstructures of Nano Alpha Alumina Developed from Aluminium Dross Waste

Abstract:

This paper compares the effect of dispersants which are Sodium Laureth Sulfate (SLS) and distilled water (DW) on the crystallization, particle size distribution and morphological behavior of nanoalpha Alumina (α-Al₂O₃) synthesized from Aluminium (Al) dross waste. The synthesizing of nanoα-Al₂O₃ via wet milling method was performed using a planetary mill for 4 hours at a speed of 550 rpm. The nanoα-Al₂O₃powders with dispersants were characterized with x-ray diffraction (XRD), particle size analyzer (PSA) and transmission electron microscopy (TEM). XRD analysis shows the broadening and shifting of peaks after the sample was calcined at 1300 °C, indicating high crystallinity. The crystallite size of α-Al₂O₃milled with SLS is also smaller than the α-Al₂O₃milled with DW. These results are consistent with the PSA analysis in which the graphs displayed a symmetrical trend. Then, the PSA analysis is validated with TEM observation up to 100000x magnification, particularly for α-Al₂O₃milled with SLS.

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Periodical:

Advanced Materials Research (Volume 1115)

Pages:

378-381

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1115.378

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Online since:

July 2015

Authors:

S. Anis Sofia, Noorasikin Samat*, Meor Yusoff Meor Sulaiman

Keywords:

Crystallite Size, Dispersants, Morphology, Nano Alpha Alumina, Particle Size

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