Paper Title:
The Preparation of Alumina Nanopowders from Solution Derived Precipitates through Polymer Gel Method
  Abstract

Non-aggregated nanoscale α-Al2O3 powders with average size ranging from 7 to 20 nm were prepared successfully at various conditions with the use of the hydrated aluminum sulfate extracted from kaolin by polyacrylamine (PAA) gel method. The calcination temperature was relatively lower about 100°C, compared to conventional solid-state reaction. It revealed that PAA worked as a chelating agent to disperse the Al3+ ions homogeneously, and the size of alumina nanoparticles could be controlled by varying the concentration of crosslinking agent.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
2047-2050
DOI
10.4028/www.scientific.net/KEM.336-338.2047
Citation
J. K. Kim, S. Y. Yoon, H. C. Park, H. Y. Park, G. S. Seo, S. S. Park, "The Preparation of Alumina Nanopowders from Solution Derived Precipitates through Polymer Gel Method", Key Engineering Materials, Vols. 336-338, pp. 2047-2050, 2007
Online since
April 2007
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$32.00
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