CAJ | 학술논문

本文利用透射电镜(TEM)和高分辨透射电镜(HRTEM)研究了利用钛与碳化硼之间的自蔓燃高温合成反应，经普通的熔炼工艺制备的(TiB+TiC)/Ti复合材料中TiB晶须与钛界面的微观组织结构。结果发现：界面非常洁净，两侧晶体存在如下平行关系：［010］TiB //［0110］Ti,(100)TiB//(2110)Ti,(001)TiB// (0002)Ti 和［001］TiB//［0110］Ti,(010)TiB//(2110)Ti ,(200)TiB //(0002)Ti。利用凝固理论分析了TiB/Ti界面微结构的形成机制，较好地解释了原位(TiB+TiC)/Ti复合材料中TiB/Ti界面结合较好的原因。
본문이용투사전경(TEM)화고분변투사전경(HRTEM)연구료이용태여탄화붕지간적자 만연고온합성반응，경보통적용련공예제비적(TiB+TiC)/Ti복합재료중TiB정수여태계면적 미관조직결구。결과발현：계면비상길정，량측정체존재여하평행관계：［010］TiB //［0110］Ti,(100)TiB//(2110)Ti,(001)TiB// (0002)Ti 화［001］TiB//［0110］Ti,(010)TiB//(2110)Ti ,(200)TiB //(0002)Ti。이용응고이론분석료TiB/Ti계면미결구적형성궤제，교호지해석료원 위(TiB+TiC)/Ti복합재료중TiB/Ti계면결합교호적원인。
A common casting technique has been applied to fabricate in situ synthesized (TiB+TiC)/Ti composite utilizing the self-propagation high-temperature synthe sis between Ti and B4C. The microstructure of TiB/Ti interface has been inve stigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution electron microscopy (HREM). The TiB/Ti interfaces we re atomically flat, sharp and free from any interfacial phase. TiB phase was wel l bonded with the matrix. The following consistent crystallographic orientation r e lationships between TiB and Ti have been observed by HREM, namely, ［010］Ti B//［0110］Ti,(100)TiB//(2110)Ti,(001)TiB// (0002)Ti and ［001］TiB//［0110］Ti,(010)TiB//(2110)T i,(200) TiB//(0002)Ti. The formation mechanism of TiB/Ti interfaces has been ana lyzed by solidification theory. The interfaces of TiB/Ti were formed during bina ry eutectic and ternary eutectic.