%0 Journal Article
%T Preparation and Properties of Titanium Diboride Ceramic Matrix Reinforced by Carbon Nanotubes<br>碳纳米管-TiB2陶瓷基复合材料的制备与性能研究
%A ZHANG Xing-Hong
%A HONG Chang-Qing
%A HAN Jie-Cai
%A ZHANG He-Xin
%A MENG Song-He
%A QU Wei
%A <br>张幸红
%J 无机材料学报
%D 2006
%I Science Press
%X TiB2-xwt%CNTs-5wt%Ni (x=0.1, 0.3, 0.5, 1, 4) composites reinforced by carbon nanotube were fabricated by hot-pressing sintering and the prepared conditions, mechanical properties and microstructure were also investigated. XRD and SEM were used to analyze the phase and fracture surface. The results show that the hardness, bending strength and fracture toughness of the composite reinforced by carbon nanotube are increased distinctly. When the carbon nanotube content is 0.5wt%, the bending strength attains 496MPa; moreover the value of hardness and fracture toughness reaches 20.5GPa and 7.25MPa·m1/2 respectively. The analysis of fracture photograph reveals that the carbon nanotube mainly distributes at the TiB2 grain boundary. The main toughing mechanisms of the TiB2-CNTs-Ni composite are CNTs pulled-out and CNTs bridging.
%K carbon nanotube
%K TiB2 ceramic matrix composite
%K mechanical properties
%K microstructure<br>碳纳米管
%K TiB2陶瓷基复合材料
%K 力学性能
%K 微观组织
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=ABC0063016AF57E1C73EF43C8D2212BD&aid=7FDBF0A19EF21DFF&yid=37904DC365DD7266&vid=659D3B06EBF534A7&iid=E158A972A605785F&sid=7E7F5B01D43BD73F&eid=FE2777263ADBA5FE&journal_id=1000-324X&journal_name=无机材料学报&referenced_num=1&reference_num=16