Ceramic Matrix Composites Prepared from CoAl Powders | Sciact - CRIS-система Института катализа

Ceramic Matrix Composites Prepared from CoAl Powders Научная публикация

Журнал

Journal of Materials Science
ISSN: 0022-2461 , E-ISSN: 1573-4803

Вых. Данные

Год: 2016, Том: 51, Номер: 23, Страницы: 10487-10498 Страниц : 12 DOI: 10.1007/s10853-016-0268-y

Ключевые слова

Alumina; Aluminum alloys; Calcination; Catalyst activity; Ceramic matrix composites; Cermets; Cobalt; Cobalt deposits; Mechanical alloying; Metals; Microwave heating; Powder metals; Powders

Авторы

Tikhov S.F. ¹ , Andreev A.S. ^1,2 , Salanov A.N. ^1,2 , Cherepanova S.V. ^1,2 , Lapina O.B. ^1,2 , Sadykov V.A. ^1,2 , Tanashev Yu.Yu. ¹ , Bolotov V.A. ¹

Организации

1	Boreskov Institute of Catalysis SB RAS, pr. Lavrentieva 5, Novosibirsk, Russia 630090
2	Novosibirsk State University (NSU), ul. Pirogova 2, Novosibirsk, Russia 630090

Информация о финансировании (2)

1	Федеральное агентство научных организаций России	V.45.3.8.
2	Российский фонд фундаментальных исследований	14-08-00251

Multiscale structure of two CoxAlyOz cermets was examined by a combination of XRD, SEM coupled with EDX, NMR (59Co; 27Al), and textural measurements. A strong CoAlO/CoAl cermet monolith prepared by mechanical alloying of Co and Al powders followed by hydrothermal treatment and calcination in air comprised two parts: the metal core consisting of Co and a Co–Al alloy, and the outer oxide matrix including a mixture of CoxAl3–xO4 spinel and cobalt oxides. The two parts were separated by the alumina interface protecting the metal core against the oxidation. Al2O3/CoAlO/CoAl cermet prepared by mixing the Co–Al mechanically alloyed product and pure aluminum hydroxide with subsequent hydrothermal treatment and calcination in air consisted of three main parts: (i) large cobalt-free porous alumina (ii) surrounded by CoxAl3–xO4 spinel oxides, and (iii) the inner core containing pure Co metal particles covered with the Co–Al alloy. A random distribution of metal particles in the oxide matrix provided an enhanced microwave absorption. A developed porosity ensured a high activity of the catalyst prepared from the porous cermet in the hexane dehydrogenation under microwave heating.

Tikhov S.F. , Andreev A.S. , Salanov A.N. , Cherepanova S.V. , Lapina O.B. , Sadykov V.A. , Tanashev Y.Y. , Bolotov V.A.
Ceramic Matrix Composites Prepared from CoAl Powders
Journal of Materials Science. 2016. V.51. N23. P.10487-10498. DOI: 10.1007/s10853-016-0268-y WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	25 апр. 2016 г.
Принята к публикации:	28 июл. 2016 г.
Опубликована online:	5 авг. 2016 г.
Опубликована в печати:	1 дек. 2016 г.

Web of science:	WOS:000383102400015
Scopus:	2-s2.0-84982993390
РИНЦ:	28486877
Chemical Abstracts:	2016:1296939
Chemical Abstracts (print):	165:345942
OpenAlex:	W2505012996

БД	Цитирований
Web of science	6
Scopus	7
РИНЦ	7
OpenAlex	5