Mukhopadhyay, Anoop Kumar and Joshi, K D and Dey, A and Chakraborty, R and Rav, A and Ghosh, Jiten and Bysakh, Sandip and Biswas, Sampad Kumar and Gupta, S C (2012) Shock deformation of coarse grain alumina above HEL. In: 23rd International Conference on High Pressure Science and Technology (AIRAPT-23), SEP 25-30, 2011, Bhabha Atomic Research Centre (BARC), Mumbai, INDIA.

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Abstract

Asymmetric shock recovery experiments with a two stage gas gun were conducted on a 10 mu m grain size alumina at 6.5 and 12 GPa shock pressures levels which were more than three to six times as high as the Hugoniot Elastic Limit (HEL) of the same alumina and the shock recovered alumina fragments were characterized by X-ray diffraction (XRD), nanoindentation, scanning electron microscopy (SEM), field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). Based on these results a new qualitative damage model was developed to explain the deformation mechanisms of shock loaded alumina.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	23rd International Conference on High Pressure Science and Technology (AIRAPT), Bhabha Atom Res Ctr (BARC), Mumbai, INDIA, SEP 25-30, 2011 DOI: 10.1088/1742-6596/377/1/012043
Subjects:	Engineering Materials
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	06 Nov 2012 07:56
Last Modified:	06 Nov 2012 07:56
URI:	http://cgcri.csircentral.net/id/eprint/1825

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