何煜,潘顺康,成丽春,罗家亮,于京京.Nd元素对Ce2Co17为基体的合金吸波性能的影响[J].稀有金属材料与工程,2019,48(10):3108~3112.[He Yu,Pan Shunkang,Cheng Lichun,Luo Jialiang,Yu Jingjing.Effect of Nd Content on Microwave Absorption Property of Ce2Co17 Alloy[J].Rare Metal Materials and Engineering,2019,48(10):3108~3112.]
Nd元素对Ce2Co17为基体的合金吸波性能的影响
投稿时间:2018-03-29  修订日期:2019-09-15
中文关键词:  NdxCe2-xCo17合金  电磁参数  微波吸收特性
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:
      目前,具有高效、宽、薄等特点的微波吸收材料已经引起了研究人员的广泛关注。在此文中,采用真空电弧熔炼和高能球磨法制备片状NdxCe2-xCo17合金粉末并且通过相关设备研究Nd含量和匹配厚度对相组成、形貌、电磁参数和微波吸收性能的影响。结果显示,Nd0.3Ce1.7Co17粉末的最大反射率可以达到-32.36dB,同时有效带宽能扩大4倍。此外,调整Nd含量能成功优化Ce2Co17合金粉末的微波吸收性能。随着Nd含量的增加,吸收峰有向低频段移动的趋势,并且当厚度为1.8mm时,Nd0.3Ce1.7Co17 粉末在7.28 GHz处,最大反射率可以达到-30.53 dB并且有效带宽为2.24 GHz,这些表明Nd-Ce-Co合金可以用作在C波段具有低厚度、宽频和高效等特点的理想吸收材料。
Effect of Nd Content on Microwave Absorption Property of Ce2Co17 Alloy
英文关键词:NdxCe2-xCo17 alloy  electromagnetic parameters  microwave absorbing property
英文摘要:
      Microwave absorption materials with high-effective, broad band and thin thickness have attracted a lot of attention of researchers. In this work, the flaky NdxCe2-xCo17 alloy powders were prepared by vacuum arc melting and high energy ball milling method. The influences of Nd content and matching thickness on phase composition, morphology, electromagnetic parameters and microwave absorbing property are studied by relevant equipments. The microwave absorption of Nd0.3Ce1.7Co17 powders were efficiently optimized generating a maximum RL of -32.36 dB and 4 times extension of effective bandwidth. Moreover, adjusting of Nd content successfully realize the optimization absorption of Ce2Co17 alloy powder. The absorption peak shifts to lower frequency region with the increasing Nd content and the maximum RL of Nd0.3Ce1.7Co17 powder can reach about -30.53 dB at 7.28 GHz at a given thickness of 1.8 mm with the effective bandwidth of 2.24 GHz, indicating that the Nd-Ce-Co alloy can be used as an ideal absorbing material in C-band with low thickness, broad band and high-effective.
作者单位E-mail
何煜 材料科学与工程学院 桂林电子科技大学 hy944461@163.com 
潘顺康 材料科学与工程学院 桂林电子科技大学  
成丽春 材料科学与工程学院 桂林电子科技大学  
罗家亮 材料科学与工程学院 桂林电子科技大学  
于京京 材料科学与工程学院 桂林电子科技大学  
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