Abstract
The effects of Ce addition on microstructure and electromagnetic interference (EMI) shielding response of Mg–6Zn–0.5Zr (ZK60) alloy have been investigated. Ce addition resulted in grain refinement and higher density of Mg–Zn–Ce and MgZn2 intermetallic particles in the alloy. In particular, this was substantially remarkable as the addition of Ce was up to 1.0 wt%. It is interesting to note that as-extruded ZK60 alloy with 1.0 wt% Ce addition exhibited an EMI shielding effectiveness (SE) exceeding 70 dB at the frequency range of 30–1,500 MHz, which was significantly higher than that of ZK60 alloy without Ce addition and reached the requirement of high protection. The superior SE was probably related to the increased reflection and multiple reflection of electromagnetic radiation induced by Ce addition. Direct artificial aging at 150 °C for 25 or 50 h led to a further increase of 7–10 dB in the SE of the alloy with 1.0 wt% Ce addition. The advantages of excellent shielding capacity and favorable mechanical strength make the Mg–Zn–Zr–Ce alloy an attractive shielding candidate material for a variety of technological applications.
Similar content being viewed by others
References
D.D.L. Chung, Carbon 39, 279 (2001)
Z. Xu, H. Hao, J. Alloys Compd. 617, 207 (2014)
S. Shi, L. Zhang, J. Li, Appl. Phys. Lett. 93, 172903 (2008)
Z.P. Chen, C. Xu, C.Q. Ma, Adv. Mater. 25, 1296 (2013)
Z. Dou, G. Wu, X. Huang, D. Sun, L. Jiang, Compos. A 38, 186 (2007)
D. Micheli, R. Pastore, A. Vricella, R.B. Morles, M. Marchetti, A. Delfini, F. Moglie, V. Mariani Primiani, Mater. Sci. Eng. B 188, 119 (2014)
C.J. von Klemperer, D. Maharaj, Compos. Struct. 91, 467 (2009)
B.J. Lv, J. Peng, Y. Peng, A.T. Tang, J. Magnes. Alloys 1, 94 (2013)
A.A. Luo, J. Magnes. Alloys 1, 2 (2013)
Z.H. Zhang, F.S. Pan, X.H. Chen, J. Liu, J. Mater. Eng. 1, 52 (2013)
Y. Gao, L. Huang, Z.J. Zheng, H. Li, M. Zhu, Appl. Surf. Sci. 253, 9470 (2007)
X.H. Chen, J. Liu, Z.H. Zhang, F.S. Pan, Mater. Des. 42, 327 (2012)
X.H. Chen, J. Liu, F.S. Pan, J. Phys. Chem. Solids 74, 872 (2013)
L.Y. Wei, G.L. Dunlop, H. Westengen, Metall. Mater. Trans. A 26, 1705 (1995)
D. Kevorkov, M. Pekguleryuz, J. Alloys Compd. 478, 427 (2009)
H. Yu, Y.M. Kim, B.S. You, H.S. Yu, S.H. Park, Mater. Sci. Eng. A 559, 798 (2013)
H.Y. Jeong, B. Kim, S.G. Kim, H.J. Kim, S.S. Park, Mater. Sci. Eng. A 612, 217 (2014)
K. Yu, W. Li, J. Zhao, Z. Ma, R. Wang, Scr. Mater. 48, 1319 (2003)
A. Wu, C. Xia, J. Wang, J. Univ. Sci. Technol. Beijing 13, 424 (2006)
A. Mwembela, E.B. Konopleva, H.J. McQueen, Scr. Mater. 37, 1789 (1997)
J.D. Robson, D.T. Henry, B. Davis, Acta Mater. 57, 2739 (2009)
S.H. Park, H. Yu, J.H. Bae, C.D. Yim, B.S. You, J. Alloys Compd. 545, 139 (2012)
S. Wen, D.D.L. Chung, Cem. Concr. Res. 34, 329 (2004)
G. Wu, X. Huang, Z. Dou, S. Chen, L. Jiang, J. Mater. Sci. 42, 2633 (2007)
H.W. Ott, Noise reduction techniques in electronic systems, 2nd edn. (Wiley, New York, 1998)
L.F. Mondolfo, Aluminium alloys: structure and properties (Butterworths, London, Boston, 1976)
Acknowledgments
This work was financially supported by International Science & Technology Cooperation Program of China (Nos. 2014DFG52810 and 2013DFA71070), National Natural Science Foundation of China (No. 51474043), Chongqing Science and Technology Commission (No. CSTC2013JCYJC60001), and Fundamental Research Funds for the Central Universities (Grant CDJZR13130086).
Author information
Authors and Affiliations
Corresponding author
Additional information
Available online at http://link.springer.com/journal/40195
Rights and permissions
About this article
Cite this article
Chen, XH., Liu, LZ., Liu, J. et al. Enhanced Electromagnetic Interference Shielding of Mg–Zn–Zr Alloy by Ce Addition. Acta Metall. Sin. (Engl. Lett.) 28, 492–498 (2015). https://doi.org/10.1007/s40195-015-0224-x
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40195-015-0224-x