Journal of Materials Science

, Volume 32, Issue 13, pp 3407–3410

Characterization of the closed porosity in plasma-sprayed alumina

  • J ILAVSKY
  • A. J ALLEN
  • G. G LONG
  • H HERMAN
  • C. C BERNDT
Article

DOI: 10.1023/A:1018616632261

Cite this article as:
ILAVSKY, J., ALLEN, A.J., LONG, G.G. et al. Journal of Materials Science (1997) 32: 3407. doi:10.1023/A:1018616632261

Abstract

The porous phase of plasma-sprayed alumina was characterized using mercury intrusion porosimetry, water immersion methods, and small-angle neutron scattering. A comparison of the results shows that the intrusion techniques did not yield a full porous phase characterization. It has been found that while the amount of closed porosity was 1.4%(±0.5%) of the sample volume, this volume accounted for only 60% of the total internal surface area. The smallest void diameter was found to be 10 nm.

Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • J ILAVSKY
    • 1
  • A. J ALLEN
    • 2
  • G. G LONG
    • 1
  • H HERMAN
    • 2
  • C. C BERNDT
    • 2
  1. 1.National Institute of Standards and TechnologyGaithersburgUSA
  2. 2.Department of Materials Science and EngineeringSUNY at Stony Brook Stony BrookUSA