Cellular Metals and Ceramics for Defence Applications (Review Paper)

  • Amol A. Gokhale Defence Metallurgical Research Laboratory, Hyderabad
  • N.V. Ravi Kumar Defence Metallurgical Research Laboratory, Hyderabad
  • B. Sudhakar Defence Metallurgical Research Laboratory, Hyderabad
  • S. N. Sahu Defence Metallurgical Research Laboratory, Hyderabad
  • Himalay Basumatary Defence Metallurgical Research Laboratory, Hyderabad
  • S. Dhara Indian Institute of Technology Kharagpur, Kharagpur
DOI: https://doi.org/10.14429/dsj.61.640
Keywords: Cellular materials, Al foam, Al/SiC foam, ceramic foam, foam properties, defence applications

Abstract

Among cellular metals, aluminium foams are the most commonly produced, and provide a unique combination of properties such as: very low density, high energy absorption under static and dynamic compressions, blast amelioration, sound absorption, and flame resistance. Applications in automotive and defence sectors have been reported. Foams based on high melting point metals such as nickel and its alloys are also under active development throughout the world for applications requiring corrosion and oxidation resistance coupled with high temperature strength and relatively high thermal conductivity. Ceramic foams were developed elsewhere in the world primarily for biomedical applications, but are also suitable for defence applications for high temperature insulation. These cellular materials will provide new materials options to designers of aerospace, transport, and other defence systems.

Defence Science Journal, 2011, 61(6), pp.567-575, DOI:http://dx.doi.org/10.14429/dsj.61.640

Author Biographies

Amol A. Gokhale, Defence Metallurgical Research Laboratory, Hyderabad
Dr Amol A. Gokhale obtained his PhD from University of Pitsburg, USA. Currently, he is working as Scientist ‘H’, Head, Solidification Technology Division, Defence Metallurgical Research Laboratory (DMRL), Hyderabad. His area of research includes: Solidification processing, laser processing, light alloys development.
N.V. Ravi Kumar, Defence Metallurgical Research Laboratory, Hyderabad
Dr N.V. Ravikumar obtained his PhD from Indian Institute of Science, Bangaluru, India. Currently working as Scientist ‘E’, Light Alloy Casting Group, DMRL, Hyderabad. His area of research includes: Composites, metal foams, solidification processing.
B. Sudhakar, Defence Metallurgical Research Laboratory, Hyderabad
Mr B. Sudhakar retired as Scientist ‘E’ from Light Alloy Casting Group, DMRL, Hyderabad in 2011. His area of
research includes: Mechanical design and manufacturing, Al-alloys and foams.
S. N. Sahu, Defence Metallurgical Research Laboratory, Hyderabad

Mr S.N. Sahu obtained his MTech from Indian Institute of Technology (IIT) Kanpur, Kanpur, India. Currently working as Scientist ‘D’, Light Alloy Casting Group, DMRL, Hyderabad. His area of research includes: Liquid-gas systems, solidification, process modelling.

Himalay Basumatary, Defence Metallurgical Research Laboratory, Hyderabad
Mr Himalay Basumatary obtained his MTech from Dept. of Physics, IIT Kharagpur. Currently working as Scientist
‘C’, Advanced Magnetics Group, DMRL, Hyderabad. His area of research includes: Magnetc materials.
S. Dhara, Indian Institute of Technology Kharagpur, Kharagpur

Dr S. Dhara working as Assistant Professor in the School of Mediacal Science and Technology, IIT, Kharagpur. His area of research includes: Bio-materials and tissue engineering.

Published
2011-10-28
How to Cite
Gokhale, A., Kumar, N., Sudhakar, B., Sahu, S., Basumatary, H., & Dhara, S. (2011). Cellular Metals and Ceramics for Defence Applications (Review Paper). Defence Science Journal, 61(6), 567-575. https://doi.org/10.14429/dsj.61.640
Issue
Vol 61 No 6
Section
Review Papers
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