Influence of the Dispersant on the Bead Milling of Alumina

Ling Yuan; Long Hao Qi; Wei Pan

doi:10.4028/www.scientific.net/KEM.512-515.36

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 512-515Influence of the Dispersant on the Bead Milling of...

Influence of the Dispersant on the Bead Milling of Alumina

Abstract:

The high-pure alpha-alumina powders with some agglomerate were treated by bead milling and their sintering behaviors were studied in this paper. During the treatment, the effect of different types and different amounts of dispersants was also investigated. It was shown that optimum dispersant content was 0.5% citric acid and optimum milling time is 6 hours. The sintering property of alumina powder after bead milling was significantly improved. Their relative density after sintering at 1500 degrees can reach 99.3% while the raw powders’ can only reach 90% at same condition.

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Key Engineering Materials (Volumes 512-515)

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36-39

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https://doi.org/10.4028/www.scientific.net/KEM.512-515.36

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Online since:

June 2012

Authors:

Ling Yuan, Long Hao Qi, Wei Pan

Keywords:

Alumina, Bead Milling, Dispersant, Sintering

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References

[1] G.B. Granger, C. Guizard, A. Addad, Sintering of an ultra pure a-alumina powder: I. Densification, grain growth and sintering path, J. Mater. Sci. 42 (2007) 6316-6324

DOI: 10.1007/s10853-006-1206-1

Google Scholar

[2] A.S.A. Chinelatto and R. Tomasi, Influence of processing atmosphere on the micro-structural evolution of submicron alumina powder during sintering, J. Ceramic. Int. 35 (2009) 2915-2920

DOI: 10.1016/j.ceramint.2009.03.037

Google Scholar

[3] C.H. Kuo, C.J. Wang, H.M. Lee, et.al. , Effects of Deagglomeration and Zirconia Wear Debris on Sintering Behavior of a-Alumina Powder, Int. J. Appl. Ceram. Technol. 7 [6] (2010) 856-867

DOI: 10.1111/j.1744-7402.2009.02396.x

Google Scholar

[4] A. Balakrishnan, P. Pizette, C.L. Martin, et.al. , Effect of particle size in aggregated and agglomerated ceramic powders, Acta. Materialia. 58 (2010) 802–812

DOI: 10.1016/j.actamat.2009.09.058

Google Scholar

[5] N.C. Kothari, The effect of particle size on sintering kinetics in alumina powder, J. nuclear. Materials. 17 (1965) 43-53

DOI: 10.1016/0022-3115(65)90146-7

Google Scholar

[6] J. Ma, L.C. Limb, Effect of particle size distribution on sintering of agglomerate-free submicron alumina powder compacts, J. Eur. Ceram. Soc. 22 (2002) 2197-2208

DOI: 10.1016/s0955-2219(02)00009-2

Google Scholar

[7] Y. Chaiyabutr, R. Giordano, R. Pober, The Effect of Different Powder Particle Size on Mechanical Properties of Sintered Alumina, Resin- and Glass-Infused Alumina , J. Biomedical Research Part B: Applied Biomaterials, 88B (2009) 502-508

DOI: 10.1002/jbm.b.31261

Google Scholar