Phase Transformations in Cd–Ni Nanostructured System at Elevated Temperatures | Sciact - CRIS-система Института катализа

Phase Transformations in Cd–Ni Nanostructured System at Elevated Temperatures Научная публикация

Журнал

Russian Chemical Bulletin
ISSN: 1066-5285 , E-ISSN: 1573-9171

Вых. Данные

Год: 2019, Том: 68, Номер: 1, Страницы: 17-23 Страниц : 7 DOI: 10.1007/s11172-019-2410-x

Ключевые слова

cadmium; crystal structure; intermetallide; nanostructured powders; nickel; phase composition; solid solution

Авторы

Pugachev V.M. ¹ , Zakharov Yu.A. ^1,2 , Valnyukova A.S. ^1,2 , Popova A.N. ² , Khitsova L.M. ² , Yashnik S.A. ³ , Ismagilov Z.R. ^2,3

Организации

1	Kemerovo State University, 6 ul. Krasnaya., 650000 Kemerovo, Russian Federation
2	The Federal Research Center of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, 18 prosp. Sovetskiy, Kemerovo, 650000, Russian Federation
3	G. K. Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, 5 prosp. Lavrentieva, Novosibirsk, 630090, Russian Federation

Информация о финансировании (1)

Сибирское отделение Российской академии наук

Using X-ray diffraction (both in vacuum and in air), derivatomass-spectrometry and thermo-programmed oxidation, phase transformations in nanostructured Cd–Ni system occurring while heating up 720 °C were described. These metal powders were obtained by joint reduction from aqueous solutions of salts with hydrazine. When study their composition, earlier unknown phases were detected (intermetallide CdNi 3 and solid solution Cdx Ni1–x with face centered cubic structure) and among the known intermetallides (Cd 5 Ni and CdNi), only Cd 5 Ni was found. As a consequence, phase transformations in the obtained nanostructured powders were remarkably different from those present on the Cd–Ni phase diagram. The intermediates and FCC phase decompose independently with formation of individual initial components (Cd and Ni) without intermediate product. At relatively high Cd concentration in the system, intermediate CdNi3 phase formation from Cd 5 Ni and CdxNi1–x phases, which are polar opposites in composition, is possible. The decomposition temperatures of Cd 5 Ni and melting point of Cd in the nanostructured state were lower than those specified by the phase diagram by 170 and 70 °C, respectively, which well corresponded to the concept of effective (high) temperatures attributed to the nanostructured systems due to the energy saturation of the con stituent nanocrystallites. © 2019, Springer Science+Business Media, Inc.

Pugachev V.M. , Zakharov Y.A. , Valnyukova A.S. , Popova A.N. , Khitsova L.M. , Yashnik S.A. , Ismagilov Z.R.
Phase Transformations in Cd–Ni Nanostructured System at Elevated Temperatures
Russian Chemical Bulletin. 2019. V.68. N1. P.17-23. DOI: 10.1007/s11172-019-2410-x WOS Scopus РИНЦ CAPlusCA OpenAlex

Пугачев В.М. , Захаров Ю.А. , Вальнюкова А.С. , Попова А.Н. , Хицова Л.М. , Яшник С.А. , Исмагилов З.Р.
Трансформации фазовых составов в наноструктурированной системе Cd-Ni при повышенных температурах
Известия Академии наук. Серия химическая. 2019. №1. С.17-23. RSCI РИНЦ

Поступила в редакцию:	12 окт. 2017 г.
Принята к публикации:	19 сент. 2018 г.
Опубликована в печати:	1 янв. 2019 г.
Опубликована online:	13 апр. 2019 г.

Web of science:	WOS:000464854400003
Scopus:	2-s2.0-85064436629
РИНЦ:	38939985
Chemical Abstracts:	2019:860317
Chemical Abstracts (print):	171:288677
OpenAlex:	W2937380753

БД	Цитирований
Scopus	2
Web of science	1
РИНЦ	2
OpenAlex	2