Thermal expansion of the iron – copper composites incorporated with carbon nanotubes
DOI:
https://doi.org/10.31548/energiya2019.05.157Abstract
Abstract. Nanosized Fe-Cu composite systems have long attracted considerable attention due to the attractiveness of Fe-Cu systems for many applications, due to their known high strength, thermal and electrical properties. At the same time, the synthesis of the Fe-Cu system faces several obstacles, which are mainly due to the low mixing of the components in the equilibrium state, if their temperature is below 700 °C.
The mechanical-chemical activation of the components of the intermetallic systems makes it possible to significantly increase their solubility and, at the same time, is a fairly simple and effective way of obtaining a large number of nanocomposites. Its application allowed us to obtain a concentration range of Fe-Cu nanocomposite materials (Fe: Cu = 4: 1 ratio) doped with multi-walled carbon nanotubes (BHT concentration was 0; 0.5; 1.0; and 2.0 vol. %) and explore some of their properties.
The aim of the study was to determine the dependence of the relative linear expansion and the thermal expansion coefficient of the nanoscale Fe-Cu composites on temperature and to find out the effect of multi-walled carbon nanotubes on these dependences.
The effect of temperature on the dilatometric characteristics (relative linear expansion and thermal expansion coefficient) of such composites is investigated.
The results obtained testify to the significant role of multi-walled carbon nanotubes in determining the thermal behavior of Fe-Cu-CNT nanocomposites. In particular, thermal expansion is practically absent in the temperature range of 35 - 800 °C for samples containing 2 vol. % carbon nanotubes. Therefore, such a composition is very promising for use in devices that are intended to operate in a wide range of ambient temperatures.
Key words: iron, copper, composite, carbon, nanotubeReferences
C. Ying Yu., et al. (1984). Thermodynamic analysis of the iron-copper system I: the stable and metastable phase equilibria. MTA. A, 15, 1921-1930.
https://doi.org/10.1007/BF02664905
Mazzone, G., Antisari, M. V. (1996). Structural and magnetic properties of metastable fcc Cu-Fe alloys. Phys. Rev. B., 54, 441-446.
https://doi.org/10.1103/PhysRevB.54.441
Sumiyama K., et al. (1984). Magnetic properties of metastable bcc and fcc Fe-Cu alloys produced by vapor quenching. J. Phys. Soc. Jpn., 53 (9), 3160-3165.
https://doi.org/10.1143/JPSJ.53.3160
Ravi C., et al. (2006). Predicting metastable phase boundaries in Al-Cu alloys from first-principles calculations of free energies: the role of atomic vibrations. Europhys. Lett., 73, 719.
https://doi.org/10.1209/epl/i2005-10462-x
Suryanarayana, C., Al-Aqeeli, N. (2013). Mechanically alloyed nanocomposites. Progr. Mater. Sci., 58, 383-502.
https://doi.org/10.1016/j.pmatsci.2012.10.001
Le Brun, P. et al. (1992). Structure and properties of Cu, Ni and Fe powders milled in planetary ball mill. Scr. Metall. Mater., 26, 1743-1748.
https://doi.org/10.1016/0956-716X(92)90545-P
Sun, J. et al. (2007). Mechanical Alloying Influence on the Sintering of Cu-Fe Compound Powders. Key Engineering Materials, 353-358, 1350-1353.
https://doi.org/10.4028/www.scientific.net/KEM.353-358.1350
Alami, A.H. et al. (2016). Fe‐Cu metastable material as a mesoporous layer for dye‐sensitized solar cells. Energy Science and Engineering, 4, 166-179.
https://doi.org/10.1002/ese3.114
Liu, X. et al. (2007). Fabrication of the supersaturated solid solution of carbon in copper by mechanical alloying. Mater. Charact., 58, 504-508.
https://doi.org/10.1016/j.matchar.2006.06.022
Trudel, Y., Angers, R. (1975). Properties of iron copper alloys made from elemental or pre-alloyed powders. Int. J. Powder. Metal. Powder Technol., 11, 5-16.
Boshko, O. et al. (2016). Structure and Strength of Iron-Copper Carbon Nanotube Nanocomposites, Nanoscale Res. Lett., 1178, 1298-1305.
https://doi.org/10.1186/s11671-016-1298-8
Revo, S.L. et al. (2016). Structural Relaxation of the Iron-Copper-Carbon Nanotubes Materials after Mechanochemical Activation. Nanosystems, Nanomaterials, Nanotechnologies, Ukraine, 14, 169-180.
Revo, S.L. et al. (2017). Structure Features, Strength, and Microhardness of Nanocomposites Obtained from Fe, Cu, and Carbon Nanotubes, O. Fesenko, L. Yatsenko (eds.), Nanophysics, Nanomaterials, Interface Studies, and Applications, Springer Proceedings in Physics, 195, 799 - 805.
Downloads
Published
Issue
Section
License
Relationship between right holders and users shall be governed by the terms of the license Creative Commons Attribution – non-commercial – Distribution On Same Conditions 4.0 international (CC BY-NC-SA 4.0):https://creativecommons.org/licenses/by-nc-sa/4.0/deed.uk
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
