Investigations on high enthalpy shock wave exposed graphitic carbon nanoparticles

Reddy, Koteeswara N and Jayaram, V and Arunan, E and Kwon, YB and Moon, WJ and Reddy, KPJ (2013) Investigations on high enthalpy shock wave exposed graphitic carbon nanoparticles. In: Diamond and Related Materials, 35 . pp. 53-57.

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Abstract

The impact of high enthalpy shock wave on graphitic carbon nanoparticle (GCNP) films has been investigated and discussed in view of space and chemical engineering applications. The GCNP films were developed by using spray method and exposed to high enthalpy shock wave under an inert atmosphere. Upon shock wave treatment, two typical amendments such as weight loss in the deposited material and growth of second order nanostructures (SONS) have been observed. While increasing test gas pressure, the loss of material and density of SONs are gradually increased. Most of the shock wave induced SONS are highly crystalline and belong to the cubic diamond structure. Upon shock treatment as well as with increase of test gas pressure, a considerable improvement in the quality of GCNP films has been observed. Further, ablation of GCNPs exclusively on the top surface of the coatings and formation of hierarchical NPs (diamond NPs on GCNPs) has been observed.

Item Type:	Journal Article
Publication:	Diamond and Related Materials
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Fullerenes; Graphite; Diamond Crystal; Nanoparticles; Radiation Induced Effects; Thermal Stability
Department/Centre:	Division of Chemical Sciences > Inorganic & Physical Chemistry Division of Chemical Sciences > Solid State & Structural Chemistry Unit Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering) Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Date Deposited:	26 Jun 2013 09:58
Last Modified:	26 Jun 2013 10:00
URI:	http://eprints.iisc.ac.in/id/eprint/46754

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