2018. HARDNESS AND FRATURE TOUGHNE OF PLASMA SPRAYED ZIRCONIA-CERIA-YTTRIA THERMAL BARRIER COATINGS. THE IRAQI JOURNAL FOR MECHANICAL AND MATERIALS ENGINEERING. 18, 2 (Aug. 2018), 214–228. DOI:https://doi.org/10.32852/iqjfmme.Vol18.Iss2.87.