Microwave Absorption Performance of Graphene Nanoplatelets Dispersed SiC

Anil Kumar Maurya; Saurabh Mr; Samarjit Singh; Abhishek Kumar

doi:10.14429/dsj.69.14947

Anil Kumar Maurya Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj - 211 004
Saurabh Mr Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj - 211 004
Samarjit Singh Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj - 211 004
Abhishek Kumar Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj - 211 004

DOI: https://doi.org/10.14429/dsj.69.14947

Keywords: Microwave absorption, Silicon carbide, Graphene nanoplatelets

Abstract

Microwave absorption performance of graphene nanoplatelets based SiC composites have been studied in the present work. Graphene nanoplatelets were dispersed at varying weight fractions viz. 0.5, 1, 2, 2.5 and 3 wt.% in SiC using ultrasonication and ball milling methods. Microwave attenuation behaviour of the prepared composites have been observed in the 2-18 GHz range. The results reflect that dispersion of graphene in SiC proves to be very instrumental in attenuating the incident microwave signals translating into enhanced absorption. The enhancement in the microwave absorption performance is due to the presence of conductive graphene nanoplatelets which is very instrumental in promoting conduction and polarisation losses in the composite translating into enhanced absorption. For 3 wt.% graphene nanoplatelets dispersion in SiC, the value of reflection loss (RL) was obtained as -38.67 dB at 14.67 GHz frequency for 2.2 mm thickness with the corresponding bandwidth of 5 GHz.

Author Biographies

Anil Kumar Maurya, Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj - 211 004

Mr Anil Kumar Maurya did his BTech in Mechanical Engineering from Uttar Pradesh Technical University Lucknow. He is currently pursuing his MTech in Materials Science and Engineering from MNNIT Allahabad. He is currently working in the area of development of materials for microwave absorption.

Saurabh Mr, Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj - 211 004

Mr Saurabh completed his BTech in Mechanical Engineering from Uttar Pradesh Technical University and MTech in Materials Science and Engineering from MNNIT Allahabad. He has done work in the area of development of microwave absorption materials during his MTech.

Samarjit Singh, Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj - 211 004

Mr Samarjit Singh received his BTech in Mechanical Engineering from Tezpur University and MTech in Materials Science and Engineering from MNNIT Allahabad. He is currently pursuing his PhD in the department of Applied Mechanics, MNNIT Allahabad. He is currently working in the area of Microwave absorbing materials for enhanced microwave absorption.

Abhishek Kumar, Department of Applied Mechanics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj - 211 004

Dr Abhishek Kumar is Associate Professor in the Department of Applied Mechanics at Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh. He received his PhD from Indian Institute of Technology Roorkee, Roorkee, Uttarakhand. His current research interests include: development of coatings for microwave absorption, bio-materials, Mechanical behaviour of dispersed polymers and severely deformed metals
such as Aluminum, Copper and Stainless steels.

Microwave Absorption Performance of Graphene Nanoplatelets Dispersed SiC

Abstract

Author Biographies

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