Combustion characteristics and structure of carbon nanotube/titanium composites

Combustion characteristics and structure of carbon nanotube/titanium composites Full article

Journal

Journal of Thermal Analysis and Calorimetry
ISSN: 1388-6150

Output data

Year: 2019, Volume: 137, Number: 6, Pages: 1903-1910 Pages count : 8 DOI: 10.1007/s10973-019-08109-8

Tags

Ball milling; Multi-walled carbon nanotubes; Thermal explosion; Titanium; Titanium carbide

Authors

Korchagin Michail A. ^1,2,3 , Gabdrashova Sholpan E. ⁴ , Dudina Dina V. ^1,2,5 , Bokhonov Boris B. ^1,6 , Bulina Natalia V. ¹ , Kuznetsov Vladimir L. ⁷ , Ishchenko Arcady V. ⁷

Affiliations

1	Institute of Solid State Chemistry and Mechanochemistry, SB RAS
2	Novosibirsk State Technical University
3	National Research Tomsk State University
4	Al-Farabi Kazakh National University
5	Lavrentyev Institute of Hydrodynamics, SB RAS
6	Novosibirsk State University
7	Boreskov Institute of Catalysis, SB RAS

Reactivity of nanosized objects is a hot topic in modern solid-state chemistry and materials science. The present work is focused on the interaction between multi-walled carbon nanotubes (MWCNTs) and metallic titanium during high-energy ball milling and thermal explosion, a rapid temperature rise in a mixture caused by an exothermic reaction ignited by external heating and occurring throughout the sample volume. A fundamental property of the nanocomposite mixture—the ability of its components to react in the combustion mode—is explained; an analysis of the dependence of the combustion characteristics of the nanocomposites on the milling duration of powder mixtures is provided. The phase and structural transformations of the Ti-MWCNT mixtures have been analyzed using X-ray diffraction and transmission electron microscopy. It was found that the ball-milled powders contain nanostructured titanium, nanotube fragments, amorphous carbon and nanosized carbon-deficient titanium carbide TiC x . Within the nanocomposite powder particles, TiC x nanoparticles are covered with layers of amorphous carbon. Thermal explosion was observed in Ti-4mass%MWCNT mixtures milled for 1.5–7 min. Shorter milling times were apparently not sufficient for establishing a proper interfacial contact, while longer milling times led to the extensive formation of titanium carbide TiC x , which acted as a barrier lowering the heat release by the mixture upon ignition. Both the ignition temperature of Ti-4mass%MWCNT and the maximum temperature developed during thermal explosion decrease with the milling time. A comparison of the behavior of MWCNT with that of carbon black under conditions of thermal explosion in the mixtures with titanium is also presented. Graphical abstract: [Figure not available: see fulltext.].

Korchagin M.A. , Gabdrashova S.E. , Dudina D.V. , Bokhonov B.B. , Bulina N.V. , Kuznetsov V.L. , Ishchenko A.V.
Combustion characteristics and structure of carbon nanotube/titanium composites
Journal of Thermal Analysis and Calorimetry. 2019. V.137. N6. P.1903-1910. DOI: 10.1007/s10973-019-08109-8 WOS Scopus РИНЦ OpenAlex

Web of science:	WOS:000481773000007
Scopus:	2-s2.0-85062726343
Elibrary:	38689008
OpenAlex:	W2920653024

DB	Citing
Scopus	6
OpenAlex	6
Elibrary	6
Web of science	6