[1]張懷武,賀穎,凌味未.CaCu3Ti4O12/NiCuZn鐵氧體基磁電復合材料研究[J].中國材料進展,2012,(7):001-9.[doi:10.7502/j.issn.1674-3962.2012.07.01]
ZHANG Huaiwu,HE Ying,LIN Weiwei.Investigations on CaCu3Ti4O12/NiCuZn Magnetoelectric Composite Materials[J].MATERIALS CHINA,2012,(7):001-9.[doi:10.7502/j.issn.1674-3962.2012.07.01]
點擊復制
CaCu3Ti4O12/NiCuZn鐵氧體基磁電復合材料研究(
)
中國材料進展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
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- 期數:
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2012年第7期
- 頁碼:
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001-9
- 欄目:
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特約研究論文
- 出版日期:
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2012-07-25
文章信息/Info
- Title:
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Investigations on CaCu3Ti4O12/NiCuZn Magnetoelectric Composite Materials
- 作者:
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張懷武; 賀穎; 凌味未
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（電子科技大學 電子薄膜與集成器件國家重點實驗室，四川 成都 610054）
- Author(s):
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ZHANG Huaiwu; HE Ying; LIN Weiwei
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(State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chendu 610054, China)
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- 關鍵詞:
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磁電復合材料; CCTO; NiCuZn; 低溫燒結
- DOI:
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10.7502/j.issn.1674-3962.2012.07.01
- 文獻標志碼:
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A
- 摘要:
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將CCTO（CaCu3Ti4O12）與NiCuZn鐵氧體進行復合，系統地研究了組分變化對這種新型磁電復合材料的燒結性能、晶相結構、顯微結構和磁電性能的影響。隨后，為了實現復合材料的低溫燒結以及綜合考慮復相陶瓷的磁電性能，選取80%（質量分數，下同）NiCuZn鐵氧體/20% CCTO組分，以BBSZ（Bi2O3H3BO3SiO2ZnO）玻璃作為助熔劑，研究了CCTO/NiCuZn鐵氧體基復合材料的燒結行為和磁電性能。結果表明，摻雜BBSZ后，900 ℃下燒結的所有樣品的密度均達到了復相陶瓷理論密度的95%，且復相陶瓷的介電常數和磁導率在1~30 MHz范圍內均不依賴于頻率的變化。在10 MHz的頻率下，當BBSZ的含量從0增加到3%時，復相陶瓷磁導率μ從132增加到479，磁損耗tanδμ從0022下降到0017，同時，樣品的諧振頻率從109 Hz左右移動到32×108 Hz。相應地，復相陶瓷的介電常數ε從92增加到16，介電損耗tanδε從0069下降到0012。這一優異的整體性能使其有望實際應用。
- Abstract:
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In this paper, CCTO/NiCuZn ferrite composite materials were synthesized by the the conventional ceramic processing. The effect of composition on the sintering properties, crystallinephase structure, microstructure, magnetic and dielectric properties of the new ferrite dielectric composite materials had been investigated systematically. To realize low temperature sintering of the composite materials and by a comprehensive evaluation of both magnetic and dielectric properties, we chose the composition of 80% NiCuZn(mass fraction) ferrite/20 wt% CCTO in here. Then, BBSZ glass was considered as an additive and its effect on sintering behavior, magnetic and dielectric properties of CCTO/NiCuZn ferrite composite materials were studied. The results showed that the density of all BBSZ doped samples sintered at 900 ℃ had reached 95% of theoretical density. The dielectric constant and permeability of composites showed weak frequency dependence in a frequency range from 1 MHz to 30 MHz. At 10 MHz, as the BBSZ content increased from 0 to 3%(mass fraction), the permeability μ of composites increased from 132 to 479, and the magnetic loss tan δ μ decreased from 0022 to 0017 Meanwhile, the resonant frequency of composites decreased from 109 Hz to 32×108 Hz. Correspondingly, the dielectric constant ε of composites increased from 92 to 16, and the dielectric loss tanδε decreased from 0069 to 0012 The excellent whole performances of composites are expected to be able to promote practical applications.
更新日期/Last Update:
2012-08-01