| 引用本文: | 马志军,莽昌烨,翁兴媛,赵海涛,高静,程亮.基于纳米镍锌铁氧体以Co2+逐步替代Ni2+制备钴锌铁氧体及吸波性能对比[J].材料科学与工艺,2018,26(6):68-74.DOI:10.11951/j.issn.1005-0299.20180087. |
| MA Zhijun,MANG Changye,WENG Xingyuan,ZHAO Haitao,GAO Jing,CHENG Liang.Preparation of cobalt-zinc ferrite based on nano-nickel-zinc ferrite by Co2+ instead of Ni2+ and comparison of their wave absorption properties[J].Materials Science and Technology,2018,26(6):68-74.DOI:10.11951/j.issn.1005-0299.20180087. |
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| 摘要: |
| 应用水热法掺杂钴离子到纳米镍锌铁氧体粉末中，制备处纳米镍锌钴铁氧体，继而用钴离子代替镍离子制备钴锌铁氧体.并利用XRD、TEM、VNA对其进行表征和分析，研究了纳米镍锌钴铁氧体和纳米钴锌铁氧体的样品粒度、形貌、电磁损耗性能及吸收性能.结果表明：纳米镍锌钴铁氧体由原先纳米镍锌铁氧体的类球形转变为不规则四边形结构.掺杂钴离子后增加吸收器的带宽, 改善材料在低频率的吸波性能。钴锌铁氧体中当Co2+: Zn2+=1: 1时，对于电磁波吸收性能比镍锌钴铁氧体要好，在16.47 GHz处到达33.9 dB. |
| 关键词: 纳米镍锌铁氧体 水热法 纳米钴锌铁氧体 吸波性能 |
| DOI：10.11951/j.issn.1005-0299.20180087 |
| 分类号:TM277 |
| 文献标识码:A |
| 基金项目:国家自然科学基金资助项目(51372108). |
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| Preparation of cobalt-zinc ferrite based on nano-nickel-zinc ferrite by Co2+ instead of Ni2+ and comparison of their wave absorption properties |
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MA Zhijun, MANG Changye, WENG Xingyuan, ZHAO Haitao, GAO Jing, CHENG Liang
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(College of Mining, Liaoning Technical University, Fuxin 123000, China)
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| Abstract: |
| The hydrothermal method was used to dope different Co2+ in nano-nickel-zinc ferrite powder and prepare cobalt-zinc ferrite with cobalt ions instead of nickel ion. XRD, TEM, and VNA characterization and analysis were employed to study the influence doping has on particle size, morphology, and electromagnetic wave absorption performance. Results showed that nanocrystalline nickel-zinc-cobalt ferrite changed from spherical to irregular quadrilateral structure. After cobalt ion was doped and the band width of absorber was increased, and the wave absorption performance at low frequency was improved. In nano-cobalt-zinc ferrite, when Co2+: Zn2+=1: 1, the electromagnetic wave absorption performance was better than that of nickel-zinc-cobalt ferrite, reaching 33.9 dB at 16.47 GHz. |
| Key words: nano-nickel-zinc ferrite hydrothermal method nano-cobalt-zinc ferrite wave absorbing properties |
