Influence of alumina particle size on fracture toughness of (Y,Nb)-TZP/Al2O3 composites

@inproceedings{Lee2002InfluenceOA,
  title={Influence of alumina particle size on fracture toughness of (Y,Nb)-TZP/Al2O3 composites},
  author={Deuk Yong Lee and Dae Joon Kim and Bae-Yeon Kim},
  year={2002}
}
Abstract ZrO 2 /Al 2 O 3 composites were prepared by mixing a tetragonal ZrO 2 , stabilized with 5.31 mol% Y 2 O 3 and 4.45 mol% Nb 2 O 5 , and Al 2 O 3 having different particle size (0.2 μm and 2.8 μm) to investigate the influence of the Al 2 O 3 particle size on flaw tolerance of the composites. The composites exhibited rising R-curve behavior and plateau fracture toughness of 7.9 and 8.8 MPa√m for the additions of 20 vol.% of 0.2 and 2.8 μm Al 2 O 3 particles, respectively. The difference… CONTINUE READING