Abstract
The Al8Mn5 − xLax (x = 0, 0.2, 0.6, 1.0) powders were triumphantly manufactured by vacuum melting and planetary mill equipment. The influences of La content on phase constitution, morphology, saturation magnetization, and electromagnetic parameters were investigated by related equipment. The consequences demonstrate that Al8Mn4La phase, average size of particulate increases and the saturation magnetization (Ms) decreases as La content increased. The minimum reflectivity of Al8Mn4.4La0.6 powder reaches about −43.5 dB in the range of 10.8 to 11.7 GHz, and the effective bandwidth (RL < − 10 dB) can obtain about 1.70 GHz with the best matching thickness of 1.8 mm. These manifest Al8Mn5-xLax (x = 0, 0.2, 0.6, 1.0) powders possess the capacity to be excellent microwave absorbing materials.
Similar content being viewed by others
References
Liu, F., Hou, Y., Gao, S.: Exchange-coupled nanocomposites: chemical systhesis, characterozation and applications. Chem. Soc. Rev. 43, 8098–8133 (2014)
Liu, F., Zhu, J.H., Yang, W.L.: Building nanocomposite magnets by coating a hard magnetic core with a soft magnetic shell. Angew. Chem. Int. Ed. 53, 2176–2180 (2014)
Yang, C., Wu, J.J., Hou, Y.L.: Fe3O4 nanostructures: synthesis, growth mechanism, properties and application. Chem. Commun. 47, 5130–5141 (2011)
Cao, M.S., Wang, X.X., Cao, W.Q., Yuan, J.: Ultrathin graphene: electrical properties and highly efficient electromagnetic interference shielding. J. Mater. Chem. C. 3, 6589–6599 (2015)
Liu, J., Cao, W.Q., Jin, H.B., Yuan, J., Zhang, D.Q., Cao, M.S.: Enhanced permittivity and multi-region microwave absorption of nanoneedle-like ZnO in the X-band at elevated temperature. J. Mater. Chem. C. 3, 4670–4677 (2015)
Xu, J.S., Zhou, W.C., Luo, F.: Research progress on radar stealth technique and radar absorbing materials. Mater. Rev. 28, 46–49 (2014)
Duan, L., Wen, B.Y.: Research progress of ploymer-based microwave absorbing materials. Mater. Rev. 28, 58–62 (2014)
Zhang, B.Q., Yu, M.X., Zhang, W.: Research progress of anisotropic magnetic absorbing materials. Mater. Rev. 3, 42–46 (2013)
Chikazumi, S.: The magnetic body manual (middle volume). Beijing: Metallurgical Industry Press (1948)
Yang, Y.C., He, W.W., Lin, Q.: Neutron diffraction study of hard magnetic alloy MnAlC. Acta Phys. Sin. 32, 1454–1459 (1983)
Tian, R. T.: The research of Mn-Al-C type magnetic alloys (MS. thesis). Hebei University of Technology (2010)
Ahmed, M.A., Okasha, M., Kershi, R.M.: Influence of rare-earth ions on the structure and magnetic properties of barium W-type hexaferrite. J. Magn. Magn. Mater. 320, 1146–1150 (2008)
Ren, X.H., Xu, G.L.: Electromagnetic and microwave absorbing properties of NiCoZn-ferrites doped with La3+. J. Magn. Magn. Mater. 354, 44–48 (2014)
Liao, S.B., Yin, G.J.: The absorption and reflection of absorbing material on electromagnetic wave. Aerosp. Mater. Technol. 2, 16–20 (1992)
Luo, J. L., Pan, S. K., Qiao, Z. Q., Cheng, L. C., Wang, Z. Z., Lin, P. H.: Electromagnetic and microwave absorption properties of flaky Nd-Ho-Fe particles. J. Mater. Sci: Mater. Electron. 28, 16366–16373 (2017)
Liao, S.B.: Ferromagnetic science (Next volume), pp. 3–88. Science Press, Beijing (1988)
Tang, L.Y., Chi, X., Wei, J.Q.: Electromagnetic parameters and microwave absorption of Fe-(50)Ni-(50)/methyl-methacrylate composites. J. Magn. Mater. Devices. 6, 10–12 (2013)
Zhang, Z. Q.: Microwave magnetic and microwave absorption mechanism of FeSiAl planar anisotropy powders composites, (MS. Thesis) GanSu: Lanzhou University (2012)
Inui, T., Konishi, K., Oda, K.: Fabrications of broad-band RF-absorber composed of planner hexagonal ferrites. IEEE Trans. Magn. 35, 3148–3150 (1999)
Wang, B.C., Wei, J.Q., Yang, Y., Wang, T., Li, F.S.: Investigation on peak frequency of the microwave absorption for carbonyl iron/epoxy resin composite. J. Magn. Magn. Mater. 323, 1101–1103 (2011)
Kong, I., Ahmad, S.H., Abdullah, M.H., Hui, D., Yusoff, A.N., Puryanti, D.: Magnetic and microwave absorbing properties of magnetite-thermoplastic natural rubber nanocomposites. J. Magn. Magn. Mater. 322, 3401–3409 (2010)
Funding
This project is supported by the National Natural Science Foundation of China (51361007), 2017 director fund of Guangxi Key Laboratory of wireless wideband communication and signal processing (GXKL06170107), and Innovation Project of GUET Graduate Education (2018YJCX87).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
He, Y., Pan, S., Yu, J. et al. Magnetic, Microwave Absorbing Performance of Al8Mn5 Alloy with La Dopant. J Supercond Nov Magn 32, 277–281 (2019). https://doi.org/10.1007/s10948-018-4944-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10948-018-4944-9