Paper Title:
Hydrogen Reduction and Sintering Behavior of Al2O3/CuO Powder Mixtures Prepared from Different Raw Powders
  Abstract

The reduction behavior of Al2O3/CuO powder mixtures, prepared from Al2O3/CuO or Al2O3/Cu-nitrate, was investigated by using thermogravimetry and hygrometry. Also, the influence of powder characteristics on the microstructure and properties of hot-pressed composites is analyzed. It was found that the hydrogen reduction process of nano-sized oxide particles and properties of sintered composites strongly depends on their distribution and size in composite powder. The formation mechanisms of nano-sized Cu dispersions are discussed based on the powder characteristics and reduction kinetics. In addition, the dependence of the microstructure and mechanical properties of hot-pressed composites on powder characteristics is discussed in terms of the initial size and distribution of Cu particles.

  Info
Periodical
Key Engineering Materials (Volumes 317-318)
Edited by
T. Ohji, T. Sekino and K. Niihara
Pages
181-184
DOI
10.4028/www.scientific.net/KEM.317-318.181
Citation
S. T. Oh, S. J. Yoon, "Hydrogen Reduction and Sintering Behavior of Al2O3/CuO Powder Mixtures Prepared from Different Raw Powders", Key Engineering Materials, Vols. 317-318, pp. 181-184, 2006
Online since
August 2006
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Price
$32.00
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