摘要
采用粉末Si覆盖在金属Mo的表面,以高频电源为加热热源,使Si在Mo基体中进行高温扩散,制备了MoMoSi_(2)梯度材料,研究了渗硅温度、渗硅时间对Mo-MoSi_(2)梯度层特征的影响。利用X射线衍射、扫描电镜、能谱等对梯度层的物相、形貌、结构等进行了检测和分析,其结果表明:在1350℃下,渗硅时间延长至300min,试样表面层可以获得纯MoSi_(2)相,Mo-MoSi_(2)梯度层结构致密,厚度可达到350μm,其物相依次为MoSi_(2)、Mo_(5)Si_(3)、MoSi_(3)、Mo。
Mo-MoSi_(2)gradient material was prepared by ihrigizing of silicon powder.The silicon powder was covered on the molybdenum and heated by high-frequency electric source to make the silicon diffuse into the molybdenum under high temperature.The effect of ihrigizing temperature and ihrigizing time on the Mo-MoSi_(2)gradient layer characteristics,such as phase,morphology,and structure,was studied,with X-ray diffraction,scanning electron microscopy and Energy Spectrum.The experimental results show that pure MoSi_(2)phase can obtain on the sample surface with ihrigizing time of 300 min at 1350℃,and this Mo-MoSi_(2)gradient layer has compact structure with thickness of 350μm,and the phases are MoSi_(2),Mo_(5)Si_(3),MoSi_(3),Mo in turn.
作者
章菊萍
张玉成
盛施展
贾国鹏
隋昊锟
涂传文
ZHANG Ju-ping;ZHANG Yu-cheng;SHENG Shi-zhan;JIA Guo-peng;SUI Hao-kun;TU Chuan-wen(School of Materials Science and Engineering,Hubei Polytechnic University,Huangshi 435000,China;Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Provincial Key Laboratory for New Processes of Iron Making and Steel Making,Wuhan University of Science and Technology,Wuhan 430081,China)
出处
《武汉理工大学学报》
CAS
北大核心
2019年第6期20-24,30,共6页
Journal of Wuhan University of Technology
基金
湖北省教育厅科学研究计划项目(Q20184501)
钢铁冶金及资源利用省部共建教育部重点实验室项目(FMRUlab18-2)
钢铁冶金新工艺湖北省重点实验室项目(FMRUlab18-2)
关键词
粉末渗硅
Mo-MoSi
梯度层
物相
结构
ihrigizing of silicon powder
Mo-MoSi2 gradient layer
phase
structure
