Paper Title:
Processing of Mullite Whiskers from Kaolin
  Abstract

Mullite whiskers have been manufactured by firing compacts of kaolin, Al2(SO4)3 and (NH4)2SO4 powders, with a small addition of Na2SO4, in air at 1400o C for 15 h. From the batch composition of Al2O3/SiO2 = 0.7, molar ratio, alumina-deficient (Al2O3/SiO2 = 1.02, molar ratio), orthorhombic mullite whiskers with an aspect ratio of >30 (0.2-0.4 μm in diameter) were obtained. With increasing Al2O3/SiO2 molar ratio, the size and aspect ratio of the mullite whiskers decreased.

  Info
Periodical
Advanced Materials Research (Volumes 29-30)
Edited by
Deliang Zhang, Kim Pickering, Brian Gabbitas, Peng Cao, Alan Langdon, Rob Torrens and Johan Verbeek
Pages
203-206
DOI
10.4028/www.scientific.net/AMR.29-30.203
Citation
B.M. Kim, T. Y. Yang, S. Y. Yoon, R. Stevens, H. C. Park, "Processing of Mullite Whiskers from Kaolin", Advanced Materials Research, Vols. 29-30, pp. 203-206, 2007
Online since
November 2007
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Price
$32.00
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