碳纳米管取向对HA/CNTs复合材料力学性能的影响  

Effect of the Carbon Nanotubes Orientation on Properties of HA/CNTs Composite

作　　者：卢志华[1] 程杰[1] 孙康宁[2] 

机构地区：[1]济宁学院物理与信息工程系,济宁273155 [2]山东大学材料学院工程陶瓷实验室,济南250061

出　　处：《材料导报》2010年第18期28-31,共4页Materials Reports

基　　金：山东省教育厅科技计划项目(J08LI54)

摘　　要：以碳纳米管为增韧材料,用原位合成法制备了羟基磷灰石/碳纳米管复合粉体,通过氮气保护热压烧结制备了羟基磷灰石/碳纳米管复合材料,并对其进行了XRD、FT-IR、SEM、致密度、抗弯强度及断裂韧性测试,同时探索了碳纳米管取向对材料力学性能的影响。结果表明,复合材料中碳纳米管择优分布在热压面内;碳纳米管取向对材料的力学性能有较大影响,随θ(材料表面与热压方向的夹角)的增大,材料的力学性能提高,垂直于热压面的方向最差,平行于热压面的方向最好。With carbon nanotubes（CNTs） as toughening agent, on the in-situ method of dispering CNTs in hydroxyapatite（HA）, HA/CNTs ceramic composite are obtained by hot pressed sintering in N2. The properties of HA/CNTs composite are characterized by XRD, FT-IR, SEM, relative density, bending strength and Klc. The results show that CNTs distribute according to qualification in the thermo-compression surface. With the increase of 0, the mechanical properties get larger, which reach the best when the tensile stress acted on the composite is parallel with the hot pressing plane and the worst when it is normal to the hot pressing plane.

关 键 词：碳纳米管 取向 复合材料 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]