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Effects of Ti doping on structure and microwave absorption properties of Pr2Fe17 alloy

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Abstract

The Pr2Fe17−xTix (x = 0.0, 0.1, 0.2, 0.3, 0.4) powder were prepared by arc smelting and high energy ball milling method. The phase structure, morphology, magnetic properties and electromagnetic parameters of the powders were characterized by X-ray diffraction, scanning electron microscopy, vibrating sample magnetometer and vector network analyzer, respectively. The results indicate that the lattice parameter a and c and unit-cell volume V increase linearly with the increasing amount of Ti doping. The saturation magnetization of the Pr2Fe17−xTix alloys decreases with the increase of Ti content. The minimum absorption peak frequency shifts towards higher frequency region upon the Ti substitution. And the minimum reflection loss of the Pr2Fe17−xTix alloys increases with the increase of Ti content. The minimum reflection loss of Pr2Fe16.6Ti0.4 powder reaches about −32.50 dB at 5.36 GHz, and the frequency bandwidth of R < −10 dB reaches about 1.52 GHz with the best matching condition d = 2.5 mm.

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Acknowledgments

This work was financially supported by the National Natural Science Foundations of China (Nos. 51361007, 51161004), Guangxi Natural Science Foundations (2014GXNSFAA118317), Scientific Research Project of Guangxi Education Department (YB2014139) and Guangxi Key Laboratory of Information Materials (1210908-07-K, 131010-Z).

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Authors and Affiliations

  1. School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, People’s Republic of China

    Jilei Xiong, Shunkang Pan, Lichun Cheng, Qingrong Yao, Guanghui Rao & Guanshui Xie

  2. Guangxi Key Laboratory of Information Materials, Guilin University of Electronic Technology, Guilin, 541004, People’s Republic of China

    Jilei Xiong, Shunkang Pan, Lichun Cheng, Qingrong Yao & Guanghui Rao

  3. School of Materials and Engineering, Central South University, Changsha, 410083, People’s Republic of China

    Lichun Cheng & Qingrong Yao

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  1. Jilei Xiong
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  2. Shunkang Pan
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  4. Qingrong Yao
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Correspondence to Shunkang Pan.

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Xiong, J., Pan, S., Cheng, L. et al. Effects of Ti doping on structure and microwave absorption properties of Pr2Fe17 alloy. J Mater Sci: Mater Electron 26, 7020–7025 (2015). https://doi.org/10.1007/s10854-015-3322-7

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  • DOI: https://doi.org/10.1007/s10854-015-3322-7

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