Anti-bullet Property of Encapsulated AD95 Al2O3 Ceramic
2024Al and SiC/2024Al were used to encapsulate the AD95 Al2O3 ceramics by Vacuumhigh Pressure Infiltration Method.Their anti-bullet properties are not excellent with Efm of 5.17 and 4.65 respectively,and is far lower than Efm of the ceramic without encapsulation.The latter one can generate higher hydrostatic pressure between the bullet and ceramic during penetration process.However,in encapsulated targets,the ductile materials in front of the ceramic can decelerate the bullet,so the pressure between bullet and ceramic is not great enough to break the bullet.Propagated microcracks along with the bonding interface were observed in plates consisting of encapsulated Al2O3.These microcraks lead to the interfacial debonding between Al2O3 and encapsulating materials.Consequently,the anti-bullet property of the ceramic encapsulated by metal or composite is depressed.Further more,the different interface bonding conditions and fracture modes cause the discrepancy of anti-bullet property in two kinds of targets with encapsulation structure.
Encapsulation Anti-bullet Property Contact Pressure Energy Dissipation
Jubin Gao Yangwei Wang Fuchi Wang
School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;National Key Laboratory of Science and Technology on Materials under Shock and Impact,Beijing,100081,China
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
494-499
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）