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Journal of Inorganic Materials

Journal of Inorganic Materials

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Armour Pierced-Resistance Behavior of Si3N4/BN Laminated Ceramics

LI Cui-Wei1, WANG Chang-An2, HUANG Yong2, ZHAO Shi-Ke2   

  1. 1. The School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China; 2. State Key Lab of New Ceramics and Fine Processing, Department
    of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
  • Received:2003-12-11 Revised:2004-03-15 Published:2005-01-20 Online:2005-01-20

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Abstract: The behaviors of impact resistance and armour pierced-resistance of Si3N4/BN laminated ceramics were studied. The study on the impact resistance indicated that the impact resistance ability of Si3N4/BN
laminated ceramics was more predominate than that of Si3N4 monolith ceramics. The ballistic efficiency factor of the Si3N4/BN laminated ceramics was slightly smaller than that of the monolithic
Si3N4 ceramics, but it was much higher than that of steel. Compared to the smashing behavior of the monolithic Si3N4 ceramics, Si3N4/BN laminated ceramics could keep the integrality
to some extent after impacted by bullet. The destructive mechanism of Si3N4/BN laminated ceramics impacted by bullet was discussed, which provides theoretical analysis basis for its’ bullet-proof structure designing.

Key words: laminated ceramics, armour pierced-resistance, ballistic efficiency factor

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