摘要
以高纯度的Ti、Al和C粉末为原料,采用无压烧结制备工艺合成Ti_3AlC_2样品,并对其选择性解离行为进行研究。利用X射线衍射(XRD)图谱和扫描电子显微镜(SEM)图像对反应产物进行分析。实验结果表明,将Ti、Al和C粉末按3:1:2的标准比例混合,在静态氩气的条件下,经过1 400℃烧结1 h后,可获得高纯度的Ti3Al C2。研磨后的粉末样品经过氢氟酸选择性腐蚀,SEM图像证实反应产物中存在二维晶体Ti3C2,证明了其在30%浓度的氢氟酸中仍然存在解离能力。
In this study,Ti,Al and C were used as raw materials,and Ti3AlC2 was synthesized by pressureless sintering.The selective dissociation behavior was investigated.The reaction products were analyzed by means of X-ray diffraction(XRD)and scanning electron microscopy(SEM).The results show that Ti,Al and C can be obtained by mixing with 3:1:2 in the condition of static argon.After 1 hour’s sintering at 1 400°C,high purity Ti3AlC2 can be obtained.The grounded powder samples were selectively etched by hydrofluoric acid.The SEM results showed that there were two dimensional crystals of Ti3C2 in the reaction products,which proved the existence of dissociation ability in 30%hydrofluoric acid.
作者
韩陈帅
汪嘉滢
朱涛
林佳宏
杨丽渊
雷珊珊
朱维婷
HAN Chenshuai;WANG Jiaying;ZHU Tao;LIN Jiahong;YANG Liyuan;LEI Shanshan;ZHU Weiting(Faculty of Engineering,Lishui University,Lishui 323000,Zhejiang)
出处
《丽水学院学报》
2018年第2期31-34,共4页
Journal of Lishui University
基金
丽水学院2017年实验室开放项目"高纯度MAX相陶瓷的原位反应合成
解理和电化学催化反应研究"
2015年浙江省大学生科技创新活动计划暨新苗人才计划项目"石墨烯基高热导率散热涂层的制备及其在LED散热领域的应用研究"(2015R431027)
关键词
TI3ALC2
无压烧结
二维晶体
解离行为
Ti3AlC2
pressureless sintering
two dimensional crystal
dissociation behavior