Paper Title:
Study of PSZ Sintered in Low Oxygen Partial Pressure
  Abstract

Thermomechanical and electrical properties of zirconia-based ceramics have led to a wide range of advanced and engineering ceramic applications like solid electrolyte in oxygen sensors, fuel cells and furnace elements and its low thermal conductivity has allowed its use for thermal barrier coatings for aerospace engine components. In this work, PSZ (partially stabilized zirconia) was studied to analyze the behavior during sintering in low oxygen partial pressure. Zirconia was partially stabilized with yttria 8 wt%. The sintering temperatures used were 1600, 1700, 1800 and 1900°C. The study of PSZ sintered in low oxygen partial pressure was done using Scanning Electron Microscope, X Ray Diffraction and density analysis. The values of samples density showed that the increasing in sintering temperature was favorable to the material densification. The monoclinic phase converted in tetragonal and cubic phases. The tetragonal phase maintains constant in all sintering temperatures, but the cubic phase increased at 1700 and 1800°C. The lattice parameters werecalculated and showed similar in all sintering temperature.

  Info
Periodical
Materials Science Forum (Volumes 498-499)
Edited by
Lucio Salgado and Francisco Ambrozio Filho
Pages
546-551
DOI
10.4028/www.scientific.net/MSF.498-499.546
Citation
D. A.P. Reis, D.S. Almeida, M. do C. de A. Nono, C. R. M. Silva, F. Piorino Neto, "Study of PSZ Sintered in Low Oxygen Partial Pressure", Materials Science Forum, Vols. 498-499, pp. 546-551, 2005
Online since
November 2005
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$32.00
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