High strain rate characteristics of 3-3 metal-ceramic interpenetrating composites

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING

卷:528

Article

Chang, Hong¹  Binner, Jon¹  Higginson, Rebecca¹  Myers, Paul²  Webb, Peter³  King, Gus³ 

[1] Univ Loughborough, Dept Mat, Loughborough, Leics, England

[2] Dyson Thermal Technol, Sheffield, S Yorkshire, England

[3] Permali Gloucester Ltd, Gloucester, England

关键词: Interpenetrating composites;    Split Hopkinson's pressure bar;    Depth of penetration;    Damage characterisation;   

DOI  :  10.1016/j.msea.2010.12.016

来源: Elsevier

【 摘 要 】

3-3 interpenetrating composites (IPCs) are novel materials with potentially superior multifunctional properties compared with traditional metal matrix composites. The aim of the present work was to evaluate the high strain rate performance of the metal-ceramic IPCs produced using a pressureless infiltration technique through dynamic property testing, viz, the split Hopkinson's pressure bar (SHPB) technique and depth of penetration (DoP) analysis, and subsequent damage assessment. Though the IPCs contained rigid ceramic struts, the samples plastically deformed with only localised fracture in the ceramic phase following SHPB. Metal was observed to bridge the cracks formed during high strain rate testing, this latter behaviour must have contributed to the structural integrity and performance of the IPCs. Whilst the IPCs were not suitable for resisting high velocity, armour piercing rounds on their own, when bonded to a 3 mm thick, dense Al2O3 front face, they caused significant deflection and the depth of penetration was reduced. (C) 2010 Elsevier B.V. All rights reserved.

【 授权许可】

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