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首页> 外文期刊>Journal of materials science >Effect of WO_3 loading on structural, electrical and dielectric properties of CaCu_3Ti_4O_(12) ceramic composites
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Effect of WO_3 loading on structural, electrical and dielectric properties of CaCu_3Ti_4O_(12) ceramic composites

机译：WO_3负载量对CaCu_3Ti_4O_（12）陶瓷复合材料的结构，电和介电性能的影响

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摘要

CaCu3Ti4O12-xWO(3) (CCTO-xWO(3)) (x=5, 10, 15, 20wt%) ceramic composites were synthesized using conventional mixed oxide method. The effect of various amounts of WO3 loading on its microstructure, electrical and dielectric properties of CCTO ceramic composites were studied using XRD, FESEM-EDAX, Hall effect and dielectric measurement. XRD analysis revealed that the CCTO-xWO(3) ceramic composites have cubic structure and WO3 loading had no effect on its crystal phase structure. The FESEM analyses showed that the samples had a porous structure. It is noted that the porosity of CCTO films increased from 2.97% to 6.11% with 20% wt. WO3 loading. Also, the electrical resistivity and dielectric permittivity of CCTO ceramics was reduced with increasing WO3 loading. Particularly, the CCTO-20wt% WO3 ceramic composites exhibited the lowest electrical resistivity (81cm) and dielectric permittivity (486 measured at 1kHz) but the highest dielectric loss (0.6 measured at 1kHz). These results have practical implication for fabrication and optimizing of CCTO ceramics for low power loss microelectronics.
机译：使用常规混合氧化物方法合成了CaCu3Ti4O12-xWO（3）（CCTO-xWO（3））（x = 5、10、15、20 wt％）陶瓷复合材料。利用X射线衍射，FESEM-EDAX，霍尔效应和介电测量研究了WO3负载量对其CCTO陶瓷复合材料微观结构，电性能和介电性能的影响。 XRD分析表明，CCTO-xWO（3）陶瓷复合材料具有立方结构，WO3负载对其晶相结构没有影响。 FESEM分析表明样品具有多孔结构。值得注意的是，CCTO膜的孔隙率从20％重量增加到2.97％到6.11％。 WO3载入中。同样，随着WO3负载的增加，CCTO陶瓷的电阻率和介电常数降低。特别地，CCTO-20wt％的WO 3陶瓷复合材料表现出最低的电阻率（81cm）和介电常数（486在1kHz下测量）但是最高的介电损耗（0.6在1kHz下测量）。这些结果对低功耗微电子CCTO陶瓷的制造和优化具有实际意义。

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  • 来源
    《Journal of materials science》 |2019年第7期|6806-6810|共5页
  • 作者

    Ahmadipour Mohsen; Arjmand Mohammad; Ain Mohd Fadzil; Ahmad Zainal Arifin; Pung Swee-Yong;

  • 作者单位

    Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Engn Campus, Nibong Tebal 14300, Penang, Malaysia;

    Univ British Columbia, Sch Engn, Kelowna, BC V1V 1V7, Canada;

    Univ Sains Malaysia, Sch Elect & Elect Engn, Engn Campus, Nibong Tebal 14300, Penang, Malaysia;

    Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Engn Campus, Nibong Tebal 14300, Penang, Malaysia;

    Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Engn Campus, Nibong Tebal 14300, Penang, Malaysia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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