@article{omori_sakai_nishiyama_suzuki_hirai_1995, 
  title={Correlation Between Hardness and Residual Stress in ZrO2(3Y)/metal Functionally Graded Materials.}, 
  volume={42}, 
  DOI={10.2497/jjspm.42.1384}, 
  number={12}, 
  publisher={Japan Society of Powder and Powder Metallurgy}, 
  author={Omori and Sakai and Nishiyama and Suzuki and Hirai}, 
  year={1995}
  }