najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2020-11-6-729-738najo-389Research ArticleCHEMISTRY AND MATERIALS SCIENCEХИМИЯ И НАУКА О МАТЕРИАЛАХStructure of nanoparticles in the ZrO2–Y2O3 system, as obtained under hydrothermal conditionsShuklinaA. I.

ul. Professora Popova, 5, Saint Petersburg, 197376

SmirnovA. V.

Kronverksky Pr. 49, bldg. A, Saint Petersburg, 197101

FedorovB. A.

Kronverksky Pr. 49, bldg. A, Saint Petersburg, 197101

KirillovaS. A.

ul. Professora Popova, 5, Saint Petersburg, 197376

AlmjashevaO. V.

Politekhnicheskaya St. 26, Saint Petersburg, 194021

almjasheva@mail.ruSaint Petersburg State Electrotechnical University “LETI”Russian FederationITMO UniversityRussian FederationIoffe InstituteRussian Federation202029072025116729–738Copyright © Shuklina A.I., Smirnov A.V., Fedorov B.A., Kirillova S.A., Almjasheva O.V., 20252025Shuklina A.I., Smirnov A.V., Fedorov B.A., Kirillova S.A., Almjasheva O.V.Shuklina A.I., Smirnov A.V., Fedorov B.A., Kirillova S.A., Almjasheva O.V.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/389

It is shown that monocrystalline nanoparticles with fluorite structure are formed in the ZrO2–Y2O3 system, under hydrothermal conditions. The limiting content of Y2O3 in the nanocrystals based on zirconium dioxide is 21.7–22.6 mol.%. Yttrium oxide not included in the structure forms an amorphous phase, which is stable even upon thermal treatment at 1000–1300 ◦C. It has been found that under hydrothermal conditions the structure of the nanocrystals based on ZrO2(Y2O3) solid solution includes water, its content depending on yttrium oxide concentration in the solid solution.

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The authors declare that there are no conflicts of interest present.