Вид документа : Статья из журнала Шифр издания : 54/P 86 Автор(ы) : Buzlukov A. L., Soloninin A. V., Skripov A. V., Medvedev E. Yu., Voronin V. I., Berger I. F. Заглавие : Positions and mobility of hydrogen atoms in Hf2CoH x (D x ) with a structure of the Ti2Ni type: study by the NMR and neutron diffraction methods Место публикации : The Physics of Metals and Metallography. - 2009. - Vol. 107, № 1. - С. 73-79: il. Примечания : Bibliogr. : p. 78-79 (13 ref.) ISSN: 0031-918X ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): интерметаллиды--ямр--метод нейтронной дифракции--гафний Аннотация: Spin–lattice relaxation rates of 1H and 2D nuclei in Hf2CoH1.2 and Hf2CoD1.3 compounds with a structure of the Ti2Ni type have been measured in the temperature range of 80–424 K. The experimental data indicate the coexistence of at least two types of jumplike motion of H (D) atoms with different characteristic frequencies. A neutron-diffraction study of the structure of the Hf2CoD1.3 compound showed that the deuterium atoms in this compound occupy octahedral positions 16c and 8a, as well as tetrahedral positions 32e1 and 96g2. An analysis of the sublattice of positions partially filled with H (D) atoms makes it possible to qualitatively explain the difference in the behavior of the jumplike motion of hydrogen in Hf2CoHx(Dx) from the corresponding behavior in the related system Ti2CoHx(Dx) Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Buzlukov, A. L.; Soloninin, A. V.; Skripov, A. V.; Medvedev, E. Yu.; Voronin, V. I.; Berger, I. F.