Enhancement of thermal conductivity of materials using different forms of natural graphite.

Desai, S.; Njuguna, J.

Abstract

The quest for improvement of thermal conductivity in every area including aerospace structures is gaining momentum as the modern day technology is embedded with electronics which generate considerable amounts of heat energy. In some other applications, the thermal energy must be absorbed or released at a very fast rate. Natural graphite is highly anisotropic and has excellent thermal and electrical conductivity in a-direction hence; it is one of the potential candidates to enhance thermal conductivity. This paper encompasses various preparation routes used to enhance thermal conductivity in materials/composites using graphite flakes in its natural and treated forms along with characterization results of thermal conductivity and/ or electrical resistivity where available. Addition of graphite has shown to improve thermal conductivity in some materials by 30-130 times whereas one method of preparation described here shows composites to have thermal conductivity as high as 750 W/m K.

Citation

DESAI, S. and NJUGUNA, J. 2012. Enhancement of thermal conductivity of materials using different forms of natural graphite. IOP conference series: materials science and engineering [online], 40(1): proceedings of 2012 international conference on Structural nano composites (NANOSTRUC 2012), 2-4 July 2012, Cranfield, UK, article 012017. Available from: https://doi.org/10.1088/1757-899X/40/1/012017

• Presentation Conference Type: Conference Paper (published)
• Conference Name: 2012 international conference on Structural nano composites (NANOSTRUC 2012)
• Acceptance Date: Aug 9, 2012
• Online Publication Date: Sep 13, 2012
• Publication Date: Dec 31, 2012
• Deposit Date: Dec 15, 2014
• Publicly Available Date: Dec 15, 2014
• Journal: IOP conference series: materials science and engineering
• Print ISSN: 1757-8981
• Electronic ISSN: 1757-899X
• Publisher: IOP Publishing
• Peer Reviewed: Peer Reviewed
• Volume: 40
• Issue: 1
• Article Number: 012017
• DOI: https://doi.org/10.1088/1757-899X/40/1/012017
• Public URL: http://hdl.handle.net/10059/1098
• Contract Date: Dec 15, 2014