MATEC Web Conf.
Volume 109, 20172017 2nd International Conference on Materials Science and Nanotechnology (ICMSNT 2017) – 2017 2nd International Symposium on Material Science and Technology (ISMST 2017)
|Number of page(s)||6|
|Section||Chapter 2: Material/Mechanical Behaviours During Materials Processing|
|Published online||31 May 2017|
Preparation and Sintering Behaviour of Alumina Powder by Ammonia Precipitation Method
1 School of Architecture and civil engineering, Shenyang University, 110044, China
2 Key Laboratory for advanced materials of Liaoning province, Shenyang University, 110044, China
a Corresponding author: email@example.com
In this paper, alumina precursor was prepared by the ammonia precipitation method which used Al (NO3) 3 9H2O as aluminum source and NH4OH as a precipitator, adding a small amount of PEG4000 as the surface active agent. Finally γ-Al2O3 was obtained at 900° for 2h. The stable alumina crystal form of α-Al2O3 was got at 1100° for 2h. The influence of precipitation agent on the precursor was studied by means of TG / DTA and Tem, XRD etc. The effects of the synthesis temperature and time on the phase composition and morphology of the alumina powder were also analysed.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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