| Al2O3-NbAl／TiAl基高温复合材料的研究 |
| |
| 引用本文： | 樊宁霞,王芬,朱建锋.Al2O3-NbAl／TiAl基高温复合材料的研究[J].西北轻工业学院学报,2012(6):32-35. |
| |
| 作者姓名： | 樊宁霞 王芬 朱建锋 |
| |
| 作者单位： | 陕西科技大学材料科学与工程学院 |
| |
| 基金项目： | 国家自然科学基金项目(51171096) |
| |
| 摘 要： | 以Ti-Al-TiO2-Nb2O5为反应体系，利用热压烧结工艺原位合成了Al2O5／TiAl复合材料．通过Mo元素掺杂对体系进行增强，借助X射线衍射（XRD）、扫描电镜（SEM）等分析研究了掺入不同含量Mo时，Ti-Al-TiO2-Nb2O5体系的热压反应过程及其对体系微观组织结构、力学性能等的影响．结果表明：放热反应加速了系统的反应，从而降低了该体系的反应温度；产物体积密度随着Mo掺杂量的增大而增大；抗弯强度和断裂韧性呈峰值变化．
|
| 关 键 词： | Al2O3-NbAl TiAl复合材料 Mo掺杂 原位合成 热压烧结 |
The research of high-temperature composite materials of Al2O3-NbAI/TiAI |
| |
| FAN Ning-xia,WANG Fen,ZHU Jian-feng.The research of high-temperature composite materials of Al2O3-NbAI/TiAI[J].Journal of Northwest University of Light Industry,2012(6):32-35. |
| |
| Authors: | FAN Ning-xia WANG Fen ZHU Jian-feng |
| |
| Affiliation: | (College of Materials Science and Engineering,Shaanxi University of Science & Technology,Xi′an 710021,China) |
| |
| Abstract: | The Al2 O3/TiAl composite materials were synthesized by hot pressing with Ti-Al- TiO2-Nb2O5 powder as raw materials. By doping Mo element on the system was for en- hanced. The reaction mechanism of Ti-Al system was investigated by X-ray diffraction analy- sis （XRD）, scanning electron microscopy（SEM） analysis of the hot-pressing process of Ti-Al-TiO2-Nb2 O5 system and other effects. The results show that exothermic reaction accel- erates the reaction system, which reduces the temperature of the system. Relative density of the product increases with the amount of Mo doping. Flexural strength and fracture tough- ness are peak changes in the amount. |
| |
| Keywords: | Al2O3/TiA1 composite materials Mo doping in-situ synthesis hot pressing |
| 本文献已被 CNKI 维普 等数据库收录！ |
