Influence of Structure and Dispersivity of Copper on its Melting Features

Abstract:

The melting parameters (melting point, specific heat of fusion) of copper samples with different volume structure (fine-grained, submicrocrystalline) and dispersivity (fine powder) were explored using differential thermal analysis. It was found that change in the metal structure from bulk coarse-grained to submicrocrystalline, and to submicron powders led to depression of melting point by ~18 °C and of specific heat of fusion by ~45 % relative to the standard values. It was shown that the high-energy impact on the starting coarse-grained metal used to obtain the samples with modified structure and dispersivity (severe plastic deformation, electric explosion of thin wires) caused changes in the composition of the material. An explanation for the observed influence of structure and dispersion factors on the melting parameters has been proposed on the basis of X-ray diffraction data, electron microscopy, and model calculations.

• Periodical: Key Engineering Materials (Volume 887)
• Pages: 269-274
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.887.269
• Online since: May 2021
• Authors: A.V. Korshunov*
• Keywords: Copper, Melting Point, Micron-Sized, Specific Heat of Fusion, Submicrocrystalline Structure, Submicron Powders

References

[1] O. D. Neikov, S. S. Naboychenko, N. A. Yefimov, Handbook of Non-Ferrous Metal Powders: Technologies and Applications, 2nd ed., Elsevier, Amsterdam, (2019).

DOI: 10.1016/b978-0-08-100543-9.00023-3

[2] A. Gusev, A. Rempel, Nanocrystalline Materials. Cambridge, CISP, (2004).

[3] W. Luo, K. Su, K. Li, Q. Li, Connection between nanostructured materials' size-dependent melting and thermodynamic properties of bulk materials, Solid State Commun. 151 (2011) 229–233.

DOI: 10.1016/j.ssc.2010.11.025

[4] Ph. Buffat, P. Borel, Size effect on the melting temperature of gold particles, Phys. Rev. A. 13 (1976) 2287–2298.

DOI: 10.1103/physreva.13.2287

[5] N.P. Young, M.A. van Huis, H.W. Zandbergen, et al., Transformations of gold nanoparticles investigated using variable temperature high-resolution transmission electron microscopy, Ultramicroscopy. 110 (2010) 506–516.

DOI: 10.1016/j.ultramic.2009.12.010

[6] J. Sun, S.L. Simon, The melting behavior of aluminum nanoparticles, Thermochim. Acta. 463 (2007) 32–40.

[7] J. Mu, Z.W. Zhu, H.F. Zhang, et al., Size dependent melting behaviors of nanocrystalline in particles embedded in amorphous matrix, J. Appl. Phys. 111 (2012) 043515 (1–4).

DOI: 10.1063/1.3686624

[8] A.F. Lopeandia, J. Rodr´ıguez-Viejo, Size-dependent melting and supercooling of Ge nanoparticles embedded in a SiO2 thin film, Thermochim. Acta. 461 (2007) 82–87.

DOI: 10.1016/j.tca.2007.04.010

[9] C. Zou, Y. Gao, B. Yang, Q. Zhai, Size-dependent melting properties of Sn nanoparticles by chemical reduction synthesis, Trans. Nonferrous Met. Soc. China. 20 (2010) 248−253.

DOI: 10.1016/s1003-6326(09)60130-8

[10] H. Jiang, K. Moon, H. Dong, et al., Size-dependent melting properties of tin nanoparticles, Chem. Phys. Lett. 429 (2006) 492–496.

DOI: 10.1016/j.cplett.2006.08.027

[11] O.A. Yeshchenko, I.M. Dmytruk, A.A. Alexeenko, A.M. Dmytruk, Size-dependent melting of spherical copper nanoparticles, Phys. Rev. B. 75 (2007) 085434 (1–6).

DOI: 10.1103/physrevb.75.085434

[12] X. Yu, Z. Zhan, The effects of the size of nanocrystalline materials on their thermodynamic and mechanical properties, Nanoscale Res. Lett. 9 (2014) 516 (1–6).

[13] F. Gao, Z. Gu, Melting Temperature of Metallic Nanoparticles, in: M. Aliofkhazraei (Ed.) Handbook of Nanoparticles, Springer International Publishing Switzerland, 2016, p.661–690.

DOI: 10.1007/978-3-319-15338-4_6

[14] L. T. DeLuca, Nanoenergetic Ingredients to Augment Solid Rocket Propulsion, in: Q-L Yan, G-Q He, P-J Liu, M Gozin (Eds.), Nanomaterials in Rocket Propulsion Systems, Elsevier, Amsterdam, 2018, 592 p.

DOI: 10.1016/b978-0-12-813908-0.00006-x

[15] M. Borodachenkova, W. Wen, A. M. de Bastos Pereira, High-Pressure Torsion: Experiments and Modeling, in: M. Cabibbo (Ed.), Severe Plastic Deformation Techniques, IntechOpen, 2017, p.93–112.

DOI: 10.5772/intechopen.69173

[16] Yu.F. Ivanov, M.N. Osmonoliev, V.S. Sedoi, et al., Productions of ultra-fine powders and their use in high energetic compositions, Propellants, Explos. Pyrotech. 28 (2003) 319–333.

DOI: 10.1002/prep.200300019

[17] CRC Handbook of Chemistry and Physics, 82nd Edition (Ed. David R. Lide), CRC Press, Boca Raton FL, (2002).

DOI: 10.1021/ja0048230

[18] B. Hallstedt, D. Risold, L.J. Gauckler. Thermodynamic Assessment of the Copper-Oxygen System, J. Phase Equilib. 15 (1994) 483–499.

DOI: 10.1007/bf02649399