| 烧结助剂对碳纳米管增强氮化铝陶瓷结构与性能的影响 |
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| 引用本文： | 王洪磊,周新贵,于海蛟,赵爽,罗征.烧结助剂对碳纳米管增强氮化铝陶瓷结构与性能的影响[J].国防科技大学学报,2009,31(4):131-133 ,140. |
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| 作者姓名： | 王洪磊 周新贵 于海蛟 赵爽 罗征 |
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| 作者单位： | 国防科技大学,航天与材料工程学院,湖南,长沙,410073 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用热压烧结工艺制备了碳纳米管增强氮化铝陶瓷,研究了烧结助剂种类、含量对碳纳米管增强氮化铝陶瓷性能及结构的影响.利用XRD、SEM和TEM等分析测试手段对其相组成,断口形貌和微观结构进行了分析.结果表明,烧结助剂Y2O3+CaF2较YE3+CaF2更能促进碳纳米管增强氮化铝陶瓷致密化,但随烧结助剂Y2O3+CaF2含量的增加,碳纳米管增强氮化铝陶瓷致密度提高,而力学、导热性能下降.
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| 关 键 词： | 碳纳米管 氮化铝 烧结助剂 热压烧结 |
| 收稿时间： | 1/8/2009 12:00:00 AM |
Effect of Sintering Aids on Microstructure and Properties of CNTs/AlN Ceramics |
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| WANG Honglei,ZHOU Xingui,YU Haijiao,ZHAO Shuang and LUO Zheng.Effect of Sintering Aids on Microstructure and Properties of CNTs/AlN Ceramics[J].Journal of National University of Defense Technology,2009,31(4):131-133 ,140. |
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| Authors: | WANG Honglei ZHOU Xingui YU Haijiao ZHAO Shuang and LUO Zheng |
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| Institution: | College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Aerospace and Materials Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | CNTs/AlN ceramics were fabricated by hot-pressure sintering, and the effect of sintering aids kinds, contents on the microstructure and properties of CNTs/AlN ceramics was investigated. The phase constitution, fracture morphology and microstructure were analyzed by XRD, SEM and TEM. The result shows that sintering aids (Y2O3+CaF2) were more efficient for the densification of CNTs/AlN ceramics than sintering aids (YF3+CaF2). As the contents of sintering aids (Y2O3+CaF2) increased, the density of CNTs/AlN ceramics improved, while the properties of mechanics and thermal-conductivity decreased. |
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