Spray granulation of Fe and C nanoparticles and their impedance match for microwave absorption

doi:10.1016/j.jmst.2017.01.010

Abstract

Abstract:

The microwave absorbents of Fe and C nanoparticles as magnetic loss and dielectric loss material respectively were composited with the polyvinyl alcohol (PVA) as binder by spray granulation method. The electromagnetic parameters of Fe and C composite particles were analyzed by vector network. The complex permittivity and magnetic permeability of Fe and C composite particles matched well with increasing C nanoparticle content, and then the microwave loss property was improved. A minimum reflection loss (RL) of -42.7 dB at 3.68 GHz for a composite with 4.6 mm in thickness can be obtained when the content ratio of the C nanoparticles, the modified Fe nanoparticles and the PVA is 21:49:30 (Sample 3).

Key words: Dielectric loss, Magnetic loss, Spray granulation method, Impedance match

H. Huang, Y. Gao, C.F. Fang, A.M. Wu, X.L. Dong, B.S. Kim, J.H. Byun, G.F. Zhang, D.Y. Zhou. Spray granulation of Fe and C nanoparticles and their impedance match for microwave absorption[J]. J. Mater. Sci. Technol., 2018, 34(3): 496-502.

Figures/Tables 7

Fig. 1. TEM images of (a, b) Fe nanoparticles and (c, d) C nanoparticles. The inset in (d) is the inverse fast-Fourier transformation of the selected regions.

Fig. 2. FTIR spectra of (a) Fe nanoparticles, modified Fe nanoparticles, KH550, and (b) C nanoparticles. The inset in (b) shows the precipitation test of Fe nanoparticles, modified Fe nanoparticles, C nanoparticles, and the mixture of modified Fe and C nanoparticles in PVA solution.

Fig. 3. Schematic mechanism of the surface modification on Fe nanoparticles.

Fig. 4. (a)-(c) SEM images of Samples 1-3 prepared by the spay granulation method, where the ratio of C nanoparticles, modified Fe nanoparticles and PVA (C:Fe:PVA) is 0:70:30, 7:63:30, and 21:49:30, respectively.

Fig. 5. Electromagnetic properties of Samples 1-3: (a) real and (a′) imaginary part of complex permittivity; (b) real and (b′) imaginary part of complex permeability.

Fig. 6. (a)-(c) Reflection loss of Samples 1-3 in a frequency range of 2-18 GHz. The curves in (a′)-(c′) represent the optimal RL curves of each sample in different thickness.

Fig. 7. Corresponding input impedances of Samples 1-3 in the matching thickness of 5 mm.

References

[1]	Y.H. Yu, C.C.M. Ma, K.C. Yu, C.C. Teng, H.W. Tien, K.Y. Chang, Y.K. Kuo, J. TaiwanInst. Chem. E 45 (2014) 674-680.
[2]	X. Tang, Q. Tian, B.Y. Zhao, K. Hu, Mater. Sci. Eng.A 445-446(2007) 135-140.
[3]	H. Huang, X.F. Zhang, B. Lv, F.H. Xue, A. Shah, L. Su, J.G. Yan, M. Yao, X.L. Dong,J. Appl. Phys. 113 (2013), 084312-084312-7.
[4]	X.F. Zhang, X.L. Dong, H. Huang, B. Lv, J.P. Lei, C.J. Choi, J. Phys. D Appl. Phys. 40(2007) 5383-5387.
[5]	B. Lu, H. Huang, X.L. Dong, J.P. Lei, J. Phys. D Appl. Phys. 43(2010)105403-105408.
[6]	B. Zhao, B.B. Fan, G. Shao, W.Y. Zhao, R. Zhang, ACS Appl. Mater. Interfaces 7(2015) 18815-18823.
[7]	X.F. Zhang, X.L. Dong, H. Huang, B. Lv, X.G. Zhu, J.P. Lei, S. Ma, W. Liu, Z.D.Zhang, Mater. Sci. Eng.454-455(2007) 211-215.
[8]	B. Zhao, G. Shao, B.B. Fan, W.Y. Zhao, R. Zhang, Phys. Chem. Chem. Phys. 17(2015) 2531-2539.
[9]	B. Zhao, G. Shao, B.B. Fan, W.Y. Zhao, S.H. Zhang, K.K. Guan, R. Zhang, J. Mater.Chem. C 3 (2015) 10862-10869.
[10]	B. Zhao, G. Shao, B.B. Fan, W.H. Guo, Y.J. Xie, R. Zhang, J. Magn. Magn. Mater.382(2015) 78-83.
[11]	B. Zhao, G. Shao, B.B. Fan, W.Y. Zhao, R. Zhang, RSC Adv. 4(2014)57424-57429.
[12]	O. Khani, M.Z. Shoushtari, M. Farbod, Phys. B: Condens. Matter 477 (2015)33-39.
[13]	X. Li, W. Zhen, Y.L. Zuo, X.N. Shi, Nanotechnology 22 (2011) 359-362.
[14]	B. Zhao, G. Shao, B.B. Fan, W. Li, X.X. Pian, R. Zhang, Mater. Lett. 121(2014)118-121.
[15]	X.F. Zhang, H. Huang, X.L. Dong, J. Phys. Chem. C 117 (2013) 8563-8569.
[16]	X.L. Dong, Z.D. Zhang, X.G. Zhao, Y.C. Chuang, S.R. Jin, W.M. Sun, J. Mater. Res.14(1999) 398-406.
[17]	L.W. Jiang, Z.H. Wang, D.Y. Geng, Y.M. Lin, Y. Wang, J. An, J. He, D. Li, W. Liu,Z.D. Zhang, Carbon 95 (2015) 910-918.
[18]	G.C. Li, J.J. Hu, G.R. Li, S.H. Ye, X.P. Gao, J. Power Sources 240 (2013) 598-605.
[19]	B. Wang, J.J. Yin, X.Y. Zhou, I. Kurash, Z.F. Chai, Y.L. Zhao, W.Y. Feng, J. Phys.Chem. C 117 (2012) 383-392.
[20]	H.Y. Li, R.G. Wang, H.L. Hu, W.B. Liu, Appl. Surf. Sci. 255(2008) 1894-1900.
[21]	S. Mallakpour, A. Barati, Prog. Org. Coat. 71(2011) 391-398.
[22]	S. Mallakpour, M. Madani, Bull. Mater. Sci. 35(2012) 333-339.
[23]	A. Baldelli, M.A. Boraey, D.S. Nobes, R. Vehring, Mol. Pharm. 12(2015)2562-2573.
[24]	G.P. Zheng, X.W. Yin, S.H. Liu, X.M. Liu, J.L. Deng, Q. Li, J. Eur. Ceram. Soc. 33(2013) 2173-2180.
[25]	M. Morteza, D.D.L. Chung, Carbon 91 (2015) 76-87.
[26]	X.F. Zhang, X.L. Dong, H. Huang, D.K. Wang, B. Lv, J.P. Lei, Nanotechnology 18(2007) 165-179.
[27]	X.G. Chen, S.S. Lv, P.P. Zhang, J.P. Cheng, S.T. Liu, Y. Ye, J. Magn. Magn.Mater.324(2012) 1745-1751.
[28]	T. Maeda, S. Sugimoto, T. Kagotani, N. Tezuka, K. Inomata, J. Magn. Magn.Mater. 281(2004) 195-205.
[29]	B. Lu, X.L. Dong, H. Huang, X.F. Zhang, X.G. Zhu, J.P. Lei, J.P. Sun, J. Magn. Magn.Mater. 320(2008) 1106-1111.
[30]	C. Kittel, Phys. Rev. 73(1948) 155-161.
[31]	D. Mercier, J.-C.S. Lévy, G. Viau, F. Fiévet-Vincent, F. Fiévet, Phys. Rev. B 62(2000) 532-544.
[32]	H. Zhang, A.J. Xie, C. Wang, H.S. Wang, Y.H. Shen, X.Y. Tian, J. Mater. Chem. A 1(2013) 8547-8552.
[33]	A. Shah, A. Ding, Y.H. Wang, L. Zhang, D.X. Wang, J. Muhammad, H. Huang, Y.P.Duan, X.L. Dong, Z.D. Zhang, Carbon 96 (2016) 987-997.
[34]	Z. Jun, J.C. Xu, T. Peng, H. Wei, J. Alloy. Compd. 487(2009) 304-308.