%0 Journal Article
%T MICROSTRUCTURE AND MECHANICAL PROPERTIES OF TiB_2-B_4C CERAMIC COMPOSITES
%A LIANG Minxian XIA Fei Institute of Metal Research
%A Academia Sinica
%A Shenyang
%A China
%A <br>LIANG Minxian XIA Fei Institute of Metal Research
%A Academia Sinica
%A Shenyang
%A China
%J 金属学报(英文版)
%D 1989
%I 
%X The microstructure and mechanical properties of TiB_2 /B_4C composites have been investi- gated.It was found that both the strength and hardness for TiB_2 greatly increase with the ad- dition of 20 to 30 wt-% B_4C,and the fracture toughness K_(IC) value remaines on the original high level.The flexure strength,Vicker's hardness and fracture toughness are 782 MPa,26.2 GPa and 7.2 MPam~(1/2),respectively,for the TiB_2-30 wt-% B_4C composite,compared to 450 MPa,21 GPa and 7.0 MPam~(1/2) for monolithic TiB_2.The toughening and strengthening mechanisms,have also been discussed.
%K TiB_2-B_4C composites
%K crack tip deflection
%K crack tip branching<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=4EF30B69F025B19ED4464444388690BE&yid=1833A6AA51F779C1&vid=0B39A22176CE99FB&iid=59906B3B2830C2C5&sid=21D8CE17EE5EE354&eid=EE23223CE4332BD7&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=4