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Granulation of Nano Alumina Powder for Improved Flowability by Spray Drying
, , Udayakumar A, , Asokamani R.
Published in Springer Science and Business Media LLC
2012
Volume: 65
   
Issue: 5
Pages: 485 - 490
Abstract
This paper reports on the methodology adopted for obtaining near spherical agglomerated Al 2O 3 powders which enables them to be coated by plasma spray technique on titanium alloys. An attempt was made on spray drying alumina slurries with polyethylene glycol as binder and sodium hexametaphosphate as a dispersant. The effect of pH on the stability and viscosity of the slurry was established and also the rheological behavior of the slurry was studied in detail. Uniform agglomerated particles were obtained by spray drying the slurry containing 22 vol% alumina, 6 wt% polyethylene glycol and 0.02 wt% sodium hexametaphosphate as a dispersant. © Indian Institute of Metals 2012.
About the journal
JournalData powered by TypesetTransactions of the Indian Institute of Metals
PublisherData powered by TypesetSpringer Science and Business Media LLC
ISSN0972-2815
Open Access0