Ceramic steel?

@article{Garvie1975CeramicS,
  title={Ceramic steel?},
  author={Ronald C. Garvie and R. H. J. Hannink and R. T. Pascoe},
  journal={Nature},
  year={1975},
  volume={258},
  pages={703-704}
}
ZIRCONIUM DIOXIDE (zirconia) has three allotropes: monoclinic, tetragonal and cubic. The transition between the first two involves a large volume expansion which prevents the refractory properties of pure zirconia being used in structural ceramics. The disruptive phase transformation can be suppressed by total stabilisation in the cubic form, but it is generally recognised that the most useful mechanical properties are obtained in multiphase material known as partially-stabilised zirconia (PSZ… 

Zirconium oxide and the crystallinity hallows

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