@article{CTT100653573,
  author = {TAKASHI AKATSU and Takashiro KATO and Yutaka SHINODA and Fumihiro WAKAI},
  title = {Thermal barrier coating made of porous zirconium oxide on a nickel-based single crystal superalloy formed by plasma electrolytic oxidation},
  journal = {Surface & Coatings Technology},
  year = 2013,
}

@article{CTT100631297,
  author = {T Akatsu and T Kato and Y Shinoda and F Wakai},
  title = {Zirconia based ceramic coating on a metal with plasma electrolytic oxidation},
  journal = {Materials Science and Engineering},
  year = 2011,
}