| Issue |
MATEC Web Conf.
Volume 109, 2017
2017 2nd International Conference on Materials Science and Nanotechnology (ICMSNT 2017) – 2017 2nd International Symposium on Material Science and Technology (ISMST 2017)
|
|
|---|---|---|
| Article Number | 02002 | |
| Number of page(s) | 6 | |
| Section | Chapter 2: Material/Mechanical Behaviours During Materials Processing | |
| DOI | https://doi.org/10.1051/matecconf/201710902002 | |
| 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: w.ly428@163.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
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