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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2020, Vol. 39 ›› Issue (12): 3729-3742.

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Research and Application Progress of Ce-Y(Ca)-TZP Ceramics and Ce-TZP/Al2O3 Composite Ceramics

LI Nan1, XIE Zhipeng2, YI Zhongzhou1, ZHAI Fengrui1   

  1. 1. College of Science, Honghe University, Mengzi 661199, China;
    2. School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Published:2021-02-01

Abstract: Ceria-stabilized tetragonal zirconia polycrystalline ceramics (Ce-TZP) have excellent low temperature degradation (LTD) resistance and high fracture toughness (KIC>20 MPa·m1/2). However, its application has been limited by the low flexual strength (~500 MPa). How to improve the strength of Ce-TZP ceramics while retaining their LTD resistance and high fracture toughness is a common concern. As revealed by large amounts of research works, by adding other solutes (such as Y3+) for co-stabilization and introducing an immiscible second phase (such as Al2O3) for grain refinement, the flexural strength of Ce-TZP ceramics can be improved significantly, and their mechanical properties can be comprehensively improved. In this paper, the research progress of ZrO2 co-stabilized by CeO2 and other oxides, and Ce-TZP/Al2O3 composite ceramics was reviewed, and their applications were introduced by taking dental implant and additive manufacturing as examples.

Key words: co-stabilized ceramic, Ce-TZP/Al2O3 composite ceramic, mechanical property, implant supported denture, additive manufacturing

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