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Effect of Graded Dispersion of SiC Particles on Dielectric Behavior of SiC/Epoxy Composite

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Abstract

Gradient structures mainly boost the dielectric and mechanical properties of composites. Herein, the fabrication of silicon carbide (SiC)/epoxy gradient composites via centrifugal casting was carried out. Samples having different weight percentages (upto-30%) were prepared by centrifugal casting and compared with non-centrifuged samples. The prepared samples were characterized for their dielectric behavior such as breakdown strength, dielectric constant, and dissipation factor. The centrifuged samples exhibited better dielectric strength as compared to the non-centrifuged ones. The breakdown voltage of the sample was increasing owing to an increase in SiC contents in the direction of centrifugal force. However, the gradient samples exhibited a low dielectric constant as compared to non-gradient samples. The mechanism involved in such phenomenon is proposed and discussed in the text.

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Acknowledgements

One of the authors Ms. Shivali Meena wishes to acknowledge CSIR for providing a junior research fellowship File no. 09/1244(0003)/2019-EMR-I.

The authors are thankful to Amity University Rajasthan for providing space for research and instrument facilities.

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Authors and Affiliations

  1. ASET, Amity University Rajasthan, Jaipur, India

    Amit Chaurasia

  2. Department of Physics, Amity University Rajasthan, Jaipur, India

    Umesh Kumar Dwivedi, Neelam Kumari, Shivali Meena & Deepshikha Rathore

  3. CSIR-Advanced Materials & Processes Research Institute, Bhopal, India

    S. A. R. Hashmi

  4. Mica Ply Private Limited, Bhopal, India

    Deepak Jain

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  1. Amit Chaurasia
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  2. Umesh Kumar Dwivedi
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  3. Neelam Kumari
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  4. Shivali Meena
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  6. S. A. R. Hashmi
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Correspondence to Umesh Kumar Dwivedi.

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Chaurasia, A., Dwivedi, U.K., Kumari, N. et al. Effect of Graded Dispersion of SiC Particles on Dielectric Behavior of SiC/Epoxy Composite. Silicon 15, 913–923 (2023). https://doi.org/10.1007/s12633-022-02057-z

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