Abstract
A high-porosity CuAl-based intermetallic compound with composition Cu-50 at.% Al has been successfully prepared by thermal explosion (TE) using NaCl as space holder. The results showed that the NaCl particles were completely removed from the green compact by water leaching. The temperature of the specimen during the TE and the evolution of the porous microstructure were investigated. The TE was ignited at 560°C, and the specimen temperature increased to 775°C in 3 s, resulting in formation of intermetallic CuAl and CuAl2 phases in the final product. A porous CuAl-based intermetallic compound with up to 62 vol.% open porosity was produced when adding 60 vol.% NaCl. The compound exhibited a bimodal pore size structure, including large pores (200 μm to 300 μm) that replicated the NaCl particles and small pores (5 μm to 10 μm) interspersed in the pore walls. Moreover, the large pores were interconnected by channels and formed an open CuAl-based intermetallic cellular structure, having great potential for use in heat exchange and filtration applications.
Similar content being viewed by others
References
Y. He, Y. Jiang, N. Xu, J. Zou, B. Huang, C. Liu, and P.K. Liaw, Adv. Mater. 19, 2102 (2010).
X. Zhao, Y. An, G. Hou, H. Zhou, and J. Chen, Tribol. Int. 101, 255 (2016).
J. Banhart, Prog. Mater Sci. 46, 559 (2001).
G. Hao, H. Wang, and X. Li, Mater. Lett. 142, 11 (2015).
H. Gao, Y. He, P. Shen, J. Zou, N. Xu, Y. Jiang, B. Huang, and C. Liu, Intermetallics 17, 1041 (2009).
X. Jiao, X. Wang, X. Kang, P. Feng, L. Zhang, J. Wang, and F. Akhtar, Mater. Lett. 181, 261 (2016).
Q. Li, J. Yu, B. Mu, and X. Sun, Mater. Sci. Eng. A 419, 214 (2006).
X. Cai, Y. Liu, P. Feng, X. Jiao, L. Zhang, and J. Wang, J. Alloys Compd. 732, 443 (2018).
J.J. Moore and H.J. Feng, Prog. Mater Sci. 39, 243 (1995).
J. Wu, H. Cui, L. Cao, and Z. Gu, Trans. Nonferrous Met. Soc. China 21, 1750 (2011).
N. Kanetake and M. Kobashi, Scripta Mater. 54, 521 (2006).
D.P. Mondal, M. Patel, S. Das, A.K. Jha, H. Jain, G. Gupta, and S.B. Arya, Mater. Des. 63, 89 (2014).
N. Jha, D.P. Mondal, J.D. Majumdar, A. Badkul, A.K. Jha, and A.K. Khare, Mater. Des. 47, 810 (2013).
M. Łazińska, T. Durejko, S. Lipiński, W. Polkowski, T. Czujko, and R.A. Varin, Mater. Sci. Eng., A 636, 407 (2015).
X.Y. Jiao, X.H. Wang, P.Z. Peng, Y.N. Liu, L.Q. Zhang, and R. Akhtar, Acta Metall. Sin. (Engl. Lett.) 31, 440 (2018).
A. Biswas, S.K. Roy, K.R. Gurumurthy, N. Prabhu, and S. Banerjee, Acta Mater. 50, 757 (2002).
T.B. Massalski, Binary Alloys Phase Diagrams, 2nd ed. (Materials Park: ASM International, 1990).
Acknowledgements
This work was supported by the Fundamental Research Funds for the Central Universities (2018BSCXC21) and Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX18_1948).
Author information
Authors and Affiliations
Corresponding author
Electronic supplementary material
Below is the link to the electronic supplementary material.
Supplementary material 1 (MP4 10156 kb)
Rights and permissions
About this article
Cite this article
Cai, X., Liu, Y., Wang, X. et al. Fabrication of Highly Porous CuAl Intermetallic by Thermal Explosion Using NaCl Space Holder. JOM 70, 2173–2178 (2018). https://doi.org/10.1007/s11837-018-3035-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11837-018-3035-5