najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2018-9-4-549-557najo-782Research ArticleCHEMISTRY AND MATERIAL SCIENCEХИМИЯ И МАТЕРИАЛОВЕДЕНИЕEffect of nonstoichiometry and amount of additives on the structure of HAp-TiOy mixtures produced by high-energy fragmentationRempelS. V.

91, Pervomaiskaya st., 620990, Ekaterinburg

19, Mira st., 620002, Ekaterinburg

svetlanarempel@ihim.uran.ruSergeevaK. A.

8, Sukhanova st., 690090, Vladivostok

SchroettnerH.

Steyrergasse 17/III, A-8010 Graz

ValeevaА. А.

91, Pervomaiskaya st., 620990, Ekaterinburg

19, Mira st., 620002, Ekaterinburg

Institute of Solid State Chemistry UB RAS; Ural Federal University named after the first President of Russia B. N. EltsinRussian FederationFar-Eastern Federal UniversityRussian FederationInstitute for Electron Microscopy and Nanoanalysis, Graz University of TechnologyAustria20181308202594549557Copyright © Rempel S.V., Sergeeva K.A., Schroettner H., Valeeva А.А., 20252025Rempel S.V., Sergeeva K.A., Schroettner H., Valeeva А.А.Rempel S.V., Sergeeva K.A., Schroettner H., Valeeva А.А.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/782

The nanoparticle sizes in hydroxyapatite (HAp), titanium monoxide (TiOy) and HAp-TiOy mixtures (y = 0.92; 1.23) have been studied by XRD and HRTEM techniques as a function of milling time. It was established that the high-energy milling does not lead to a considerable decrease in the particle size and to a variation in the HAp crystal lattice parameters, but it promotes 4-fold reduction of microstrains. It was shown that the dependence of the average size of crystal and structural parameters on the milling time for the HAp-TiOy mixtures is similar to that of initial HAp. The coherent scattering region of HAp does not depend on stoichiometry and TiOy content in the mixture and is ∼ 15 ± 5 nm after milling for 480 min.

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