Static and dynamic mechanical properties of boron carbide processed by spark plasma sintering
Static and dynamic mechanical properties of boron carbide processed by spark plasma sintering
复制标题
DOI：
10.1016/j.jeurceramsoc.2009.07.007
复制
发表时间：
2009-12-15
影响因子：
5.7
通讯作者：
Zaretzky, E.
中科院分区：
文献类型：
--
作者：
Hayun, S.;Paris, V.;Zaretzky, E.
放电等离子烧结（SPS）已成为一种流行的共价陶瓷致密化技术。研究了无烧结助剂的SPS烧结碳化硼粉末的静态力学性能和动态压缩性能。通过短时间高温SPS处理获得了完全致密的碳化硼坯体。SPS处理的材料的力学性能，即硬度（32 GPa）、杨氏模量（470 GPa）、断裂韧性K-C（3.9-4.9 MPa m（0.5））、弯曲强度（430 MPa）和Hugoniot弹性极限（17-19 GPa）接近或甚至优于热压碳化硼的那些。(C)2009爱思唯尔有限公司保留所有权利。
Spark plasma sintering (SPS) has become a popular technique for the densification of covalent ceramics. The present investigation is focused on the static mechanical properties and dynamic compressive behavior of SPS consolidated boron carbide powder without any sintering additives. Fully dense boron carbide bodies were obtained by a short high temperature SPS treatment. The mechanical properties of the SPS-processed material, namely hardness (32 GPa), Young modulus (470 GPa), fracture toughness K-C (3.9-4.9 MPa m(0.5)), flexural strength (430 MPa) and Hugoniot elastic limit (17-19 GPa) are close or even better than those of hot-pressed boron carbide. (C) 2009 Elsevier Ltd. All rights reserved.