摘要
本研究中,以金属钛(Ti)粉与环己烷为原料,利用机械合金化制备了碳化钛(TiC)纳米粉体。利用X射线衍射并结合Rietveld精修对球磨产物进行定性与定量分析;借助透射电子显微镜对产物进行形貌与元素以及结晶性进行分析;对球磨过程中TiC的合成机理进行了研究。结果表明,球磨产物中主相为TiC,另有少量残留的氢化钛(TiH2)与Ti;所制备TiC粉体易于团聚、颗粒度均匀、结晶性良好;TiC合成机理属于扩散型机制。
The nano-TiC powders were synthesized by mechanical alloying with the starting materials being Ti powders and cyclo- hexane. The qualitative and quantitative analyses of ball-milling products were performed by X-ray diffraction combined with Ri- etveld refinement. The morphology, composition and crystallinity of the products were analyzed by transmission electron micro- scopy. The formation mechanism of TiC in the process of ball milling was also studied. The results showed that the main phase of the products was TiC with small amount of Till2 and residual Ti. The as-synthesized TiC particles appeared easily agglomerated with uniform particle size and excellent crystallinity. The synthesis mechanism of TiC is determined to be diffusion-controlled.
出处
《燕山大学学报》
CAS
2012年第2期136-140,共5页
Journal of Yanshan University
基金
国家自然科学基金资助项目(51172198
51025103
50871096
50672082)
河北省自然科学基金资助项目(E2009001636)
教育部博士点基金资助项目(200802160008)
作者简介
陈灿坤（1986-），男，湖南邵阳人，硕士研究生，主要研究方向为高强度合金材料
通信作者：柳忠元（1965-），男，山东烟台人，博士，教授，博士生导师，主要研究方向为磁性纳米薄膜材料与高强度合金材料，Email：liuzy0319@yahoo．com。
