Electrophoretic deposition behavior of ceria-stabilized zirconia/alumina powder

Dent Mater J. 2007 Sep;26(5):623-7. doi: 10.4012/dmj.26.623.

Abstract

The aim of this study was to evaluate the electrophoretic deposition (EPD) behavior of ceria-stabilized zirconia/alumina (Ce-TZP/Al2O3) granulated powder. Two types of slurry with powder-to-solvent ratios of 10 wt% and 20 wt% were used. Zeta potential of the slurries was measured using a spectrometer at different pH levels. Then, EPD was performed to measure the weight of the deposited particles at varying pH levels and at two voltages (50 V and 100 V). The isoelectric point of Ce-TZP/Al2O3 mixed powder was approximately at pH 8.5. When EPD was performed, deposition of ceramic particles was typically observed in the range of pH 3 to pH 7, with the greatest deposition found at around pH 7. Moreover, the deposition of ceramic particles increased with increase in slurry concentration and voltage.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aluminum Oxide / chemistry*
  • Cerium / chemistry*
  • Dental Porcelain / chemistry*
  • Dental Prosthesis Design*
  • Electrophoresis
  • Isoelectric Point
  • Materials Testing
  • Nanocomposites*
  • Potentiometry
  • Powders
  • Solvents
  • Zirconium / chemistry*

Substances

  • Ce-TZP-Al2O3
  • Powders
  • Solvents
  • Dental Porcelain
  • Cerium
  • Zirconium
  • Aluminum Oxide
  • zirconium oxide