Al-C复合材料中Al/C界面的高分辨观察  

HRTEM Oservation of Al/C Interface in Al-C Composites

作　　者：李秀杰[1] 王裕[1] 梁伟[1] 

机构地区：[1]太原理工大学材料科学与工程学院,山西太原030024

出　　处：《材料热处理学报》2005年第3期85-86,共2页Transactions of Materials and Heat Treatment

基　　金：国家自然科学基金 (50 1 71 0 4 6) ;山西省自然科学基金(2 0 0 2 1 0 51 )

摘　　要：通过等通道挤压(ECAP)制备了Al- C复合材料,并使用HRTEM、EDS和XRD研究了Al- C界面。结果表明,界面上并未出现不稳定的Al4 C3,界面结合较好。Al-C界面分两类:一类为由非晶C和Al形成的界面;另一类为由石墨C和Al形成的界面。在石墨C和Al形成的界面处由于界面应力的作用晶格出现部分扭曲,此处的石墨C有向非晶C转变的趋势。Al-3at%C composites were prepared by equal-channel angular pressing (ECAP). The microstructure and interface of the aluminum matrix composites were investigated by high resolution transmission electron microscopy (HRTEM), energy dispersive spectrometry (EDS) and X-ray diffraction (XRD). Two kinds of interfaces have been found in the composites, one is Al/C (amorphous), the other is Al/C (graphite). At the Al/C (graphite) interface, the lattice of both Al and graphite distorts partially because of interfacial stress, and the graphite has a trend to become amorphous carbon. Al_4C_3 is not found at the interface Al/C.

关 键 词：Al-C复合材料 界面 ECAP 

分 类 号：TB333[一般工业技术—材料科学与工程] TG111[金属学及工艺—物理冶金]