| 引用本文: | 王洪磊,周新贵,于海蛟,等.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.[点击复制] |
| WANG Honglei,ZHOU Xingui,YU Haijiao,et al.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[点击复制] |
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| 烧结助剂对碳纳米管增强氮化铝陶瓷结构与性能的影响 |
| 王洪磊, 周新贵, 于海蛟, 赵爽, 罗征 |
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(国防科技大学 航天与材料工程学院，湖南 长沙 410073)
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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YF3+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，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。 |
| 关键词: 碳纳米管 氮化铝 烧结助剂 热压烧结 |
| DOI： |
| 投稿日期：2009-01-08 |
| 基金项目:国家自然科学基金资助项目(50672128) |
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| Effect of Sintering Aids on Microstructure and Properties of CNTs/AlN Ceramics |
| WANG Honglei, ZHOU Xingui, YU Haijiao, ZHAO Shuang, LUO Zheng |
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(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. |
| Keywords: CNTs AlN sintering aids hot-pressure sintering |
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