Microstructure and Mechanical Properties of Ce-Y-TZP Ceramic Composites for Ceramic Plunger and Ball Valve

Bao Qing Zhang; Xu Ping Lin; Jing Tao Ma

doi:10.4028/www.scientific.net/KEM.336-338.1197

Paper Titles

The Influence of Sintering Process on the Microstructure of Submicron Alumina Fabricated by Gelcasting
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Low Temperature Degradation of Yttria Stabilized Zirconia
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Effect of Al₂O₃ on the Phase Stability of Y-Ce-TZP/Al₂O₃ Composites at Low Temperature
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Microstructure and Phase Composition of (Ce, Mg)-PSZ Ceramics
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Microstructure and Mechanical Properties of Ce-Y-TZP Ceramic Composites for Ceramic Plunger and Ball Valve
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Effect of HIP on the Properties and Microstructure of Transparent Polycrystalline Spinel
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Processing of Zinc-Based MgAl₂O₄ Composite and Effect of Fly Ash Addition
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A Study on Toughening and Strengthening of Mg-Al Spinel Transparent Ceramics
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Study on the Properties of Alumina Ceramics after Implanted by Titanium Ions with MEVVA Sources
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 336-338Microstructure and Mechanical Properties of...

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.

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Key Engineering Materials (Volumes 336-338)

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1197-1199

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.1197

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April 2007

Authors:

Bao Qing Zhang, Xu Ping Lin, Jing Tao Ma

Keywords:

Mechanical Property, TZP

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