首页|Evaluation of Dielectric Properties of CCTO-BT/Epoxy Composites for Electronic Applications

Evaluation of Dielectric Properties of CCTO-BT/Epoxy Composites for Electronic Applications

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In the current study,the calcium copper titanate(CCTO)/epoxy,barium titanate(BT)/epoxy and CCTO-BT/epoxy composite samples with variable volume fractions of CCTO and BT are fabricated using hand lay-up and compression moulding process.The composite samples are characterized for the frequency dependence on dielectric properties,conductivity,impedance spectroscopy and electrical modulus.X-ray diffraction(XRD)representation of CCTO-BT/epoxy composite samples confirmed the presence of both CCTO and BT ceramic samples separately.The dielectric characteristics of hybrid CCTO-BT/epoxy composite samples with CCTO∶BT ratio of 40∶60,60∶40,and 50∶50 was found relatively better than those of single ceramic filler reinforced epoxy composites.AC conductivity analysis shows improvement in the results of hybrid filler-filled CCTO-BT/epoxy composites in comparison with single filler-filled epoxy composite.50∶50 CCTO-BT/epoxy composite shows the best AC conductivity value of～2.2 × 10-5 ohm-1·m-1 at a higher frequency of 1 MHz.The impedance analysis confirms the higher insulating properties for hybrid 40∶60 and 60∶40 CCTO-BT/epoxy composites with respect to the single and other hybrid ceramic epoxy composites.The analysis suggests the hybrid CCTO-BT/epoxy composites to be adopted as a potential dielectric material for energy storage devices and other electronic applications.

ceramic fillerdielectric characterizationhybrid CompositeAC conductivityimpedance analysis

Swagatika Mishra、Punyapriya Mishra、Punyatoya Mishra、Dinesh Kumar Mishra、Krushna Prasad Shadangi、Deepak Kumar Mohapatra

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Department of Mechanical Engineering,Veer Surendra Sai University of Technology,Burla,Odisha 768018,India

Department of Physics,Parala Maharaja Engineering College,Berhampur,Odisha 761003,India

Department of Metallurgical and Materials Engineering,Veer Surendra Sai University of Technology,Burla,Odisha,768018,India

Department of Chemical Engineering,Veer Surendra Sai University of Technology,Burla,Odisha 768018,India

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2024

10.11916/j.issn.1005-9113.2023012

哈尔滨工业大学学报(英文版)
哈尔滨工业大学

哈尔滨工业大学学报(英文版)

影响因子：0.238
ISSN：1005-9113
年,卷(期)：2024.31(1)
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