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| W和W-Mo对等离子烧结Nb/Nb5Si3复合材料显微组织的影响 | |
| 引用本文： | 熊博文,龙文元,陈 哲,万 红,严有为. W和W-Mo对等离子烧结Nb/Nb5Si3复合材料显微组织的影响[J]. 稀有金属材料与工程, 2009, 38(6): 1112-1115 |
| 作者姓名： | 熊博文 龙文元 陈 哲 万 红 严有为 |
| 作者单位： | 1. 南昌航空大学,江西,南昌,330063 2. 南昌工程学院,江西,南昌,330099 3. 华中科技大学,模具技术国家雷点实验室,湖北,武汉,430074 |
| 基金项目： | 国家自然科学基金，江西省科技厅基金，南昌航空大学基金 |
| 摘 要： | 利用等离子烧结(SPS)技术,对Nb-20Si,Nb-20Si-10W和Nb-20Si-10W-10Mo试样进行了烧结,主要研究了W和W-Mo对Nb/Nb5Si3复合材料显微组织的影响.利用扫描电镜(SEM)观察显微组织,X射线衍射仪(XRD)分析相组成,电子探针微观分析(EPMA)进行成分分析.结果表明:烧结样品相对密度达到99.59%;W可以很好地固溶在Nb/Nb5Si3复合材料中,且显微组织没有变化;W-Mo固溶后显微组织有明显变化,出现了单质Nb相,W和Mo复合固溶的Nb相固溶体,并且有部分Nb固溶在W相中,在Nb5Si3相中没有发现固溶现象. |
| 关 键 词： | 等离子烧结 原位合成 显微组织 Nb/Nb5Si3复合材料 |
| 收稿时间： | 2008-10-26 |
Effects of W and W-Mo Additions on Microstructures of Nb/Nb5Si3 in Situ Composites by Spark Plasma Sintering |
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| Xiong Bowen,Long Wenyuan,Chen Zhe,Wan Hong and Yan Youwei. Effects of W and W-Mo Additions on Microstructures of Nb/Nb5Si3 in Situ Composites by Spark Plasma Sintering[J]. Rare Metal Materials and Engineering, 2009, 38(6): 1112-1115 | |
| Authors: | Xiong Bowen Long Wenyuan Chen Zhe Wan Hong Yan Youwei |
| Affiliation: | 1. Nanchang Hangkong University;Nanchang 330063;China;2. Nanchang Institute of Technology;Nanchang 330099;China;3. Sate Laboratory for Die Technology;Huazhong University of Science & Technology;Wuhan 430074;China |
| Abstract: | Nb-20Si, Nb-20Si-10W and Nb-20Si-10W-10Mo samples were prepared by a spark plasma sintering (SPS), the effects of W and W-Mo additions on the microstructure of Nb/Nb5Si3 composites were mainly investigated. The microstructures were examined by scanning electron microscope (SEM). X-ray diffraction (XRD) was used for phase identification of the samples. The compositions were analyzed by electron-probe micro-analysis (EPMA). Results indicate that Nb/Nb5Si3 composites up to 99.59% of theoretical density are fab... |
| Keywords: | spark plasma sintering in-situ synthesis microstructure Nb/Nb5Si3 composites |
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