Characterization of damage modes in dental ceramic bilayer structures.

@article{Deng2002CharacterizationOD,
  title={Characterization of damage modes in dental ceramic bilayer structures.},
  author={Yan Deng and Brian R. Lawn and Isabel K. Lloyd},
  journal={Journal of biomedical materials research},
  year={2002},
  volume={63 2},
  pages={137-45}
}
Results of contact tests using spherical indenters on flat ceramic coating layers bonded to compliant substrates are reported for selected dental ceramics. Critical loads to produce various damage modes, cone cracking, and quasiplasticity at the top surfaces and radial cracking at the lower (inner) surfaces are measured as a function of ceramic-layer thickness. It is proposed that these damage modes, especially radial cracking, are directly relevant to the failure of all-ceramic dental crowns… CONTINUE READING

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