Paper Title:
Microstructure and Mechanical Properties of Ce-Y-TZP Ceramic Composites for Ceramic Plunger and Ball Valve
  Abstract

Microstructure and mechanical properties of CeO2/Y2O3/ZrO2 ceramics were investigated using ultrafine CeO2/Y2O3/ZrO2 powder as the starting material. The structures of CeO2/Y2O3/ZrO2 containing 8~12mol% CeO2 were composed of tetragonal phases. They exhibited an extremely high bending strength (950 MPa) and fracture toughness (12MPa·m1/2). The structural details of CeO2/Y2O3/ ZrO2 were studied by TEM, SEM and XRD. The effects of the structure on mechanical properties were discussed. Plungers and ball valves by the CeO2/Y2O3/ZrO2 ceramics have higher wear resistance and corrosion resistance than metal. Their service life is about 6 ~ 10 fold more than that of metal.

  Info
Periodical
Key Engineering Materials (Volumes 336-338)
Edited by
Wei Pan and Jianghong Gong
Pages
1197-1199
DOI
10.4028/www.scientific.net/KEM.336-338.1197
Citation
B. Q. Zhang, X. P. Lin, J. T. Ma, "Microstructure and Mechanical Properties of Ce-Y-TZP Ceramic Composites for Ceramic Plunger and Ball Valve", Key Engineering Materials, Vols. 336-338, pp. 1197-1199, 2007
Online since
April 2007
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Price
$32.00
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