Toughness control of boron carbide obtained by spark plasma sintering in nitrogen atmosphere

Badica, P., Borodianska, H., Xie, S., Zhao, T., Demirskyi, D., Li, P., Tok, A. I.Y., Sakka, Y. and Vasylkiv, O. (2014) Toughness control of boron carbide obtained by spark plasma sintering in nitrogen atmosphere. Ceramics International, 40(2), pp. 3053-3061. (doi:10.1016/j.ceramint.2013.09.141)

Full text not currently available from Enlighten.

Abstract

Boron carbide ceramic was prepared by reactive Spark Plasma Sintering under N2-atmosphere and for different heating times and maximum pressure regimes. Split-Hopkinson Pressure Bar (SHPB), indentation, XRD and microscopy measurements were performed for samples characterization. It is shown that SHPB toughness control depending on SPS regime is possible and the main reason is introduction of nitrogen into B4C ceramic. Complex relationships between processing conditions, sintering mechanism, material's specifics, static and dynamic mechanical properties are discussed. Improvement of dynamic toughness is through mechanisms resembling those working for static load conditions such as cracks deflection and pull out, but there are also significant differences.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Li, Dr Peifeng
Authors: Badica, P., Borodianska, H., Xie, S., Zhao, T., Demirskyi, D., Li, P., Tok, A. I.Y., Sakka, Y., and Vasylkiv, O.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Ceramics International
Publisher:Elsevier
ISSN:0272-8842
ISSN (Online):1873-3956
Published Online:08 October 2013

University Staff: Request a correction | Enlighten Editors: Update this record