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The correlation of indentation behaviour with ballistic performance for spark plasma sintered armour ceramics

Hallam, D, Heaton, A, James, B, Smith, PA and Yeomans, JA (2015) The correlation of indentation behaviour with ballistic performance for spark plasma sintered armour ceramics Journal of the European Ceramics Society. pp. 2243-2252.

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Abstract

The Knoop and Vickers indentation behaviour of spark plasma sintered SiC–5 wt.% B4 C, B4 C and SiC–2.5 wt.% AlN–3 wt.% C armour ceramics have been investigated and observations correlated with ballistic performance. Surface and sub-surface indentation-induced damage has been characterised via cross-sectioning and serial ceramographic polishing techniques. The nature of the damage appears to be less influential than hardness in relation to ballistic performance, but variability in indentation behaviour appears to correlate with variability in ballistic performance. Examination of the indentation size effect curves shows that both Knoop hardness and predicted transition velocities correlate with V50 ballistic performance against an armour-piercing threat, further supporting the importance of hardness and the potential for indentation to be used as a screening method for armour materials.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Authors :
AuthorsEmailORCID
Hallam, DUNSPECIFIEDUNSPECIFIED
Heaton, AUNSPECIFIEDUNSPECIFIED
James, BUNSPECIFIEDUNSPECIFIED
Smith, PAUNSPECIFIEDUNSPECIFIED
Yeomans, JAUNSPECIFIEDUNSPECIFIED
Date : 2015
Funders : Engineering and Physical Sciences Research Council, Defence Science and Technology Laboratory
Additional Information : This is an open access article under the Open Government Licence(OGL)
Depositing User : David Hallam
Date Deposited : 12 May 2015 15:36
Last Modified : 12 May 2015 15:36
URI: http://epubs.surrey.ac.uk/id/eprint/807560

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