(1. 南昌航空大學(xué) 輕合金加工科學(xué)與技術(shù)國防重點學(xué)科實驗室，南昌 330063；
2. 西北工業(yè)大學(xué) 凝固技術(shù)國家重點實驗室，西安 710072)
摘 要: 采用旋轉(zhuǎn)摩擦擠壓法制備多壁碳納米管增強鋁基(MWCNTs/Al)復(fù)合材料，通過高分辨透射電鏡觀察MWCNTs/Al復(fù)合材料的界面結(jié)構(gòu)，并對界面反應(yīng)進行研究。結(jié)果表明：在MWCNTs/Al復(fù)合材料中Al-C之間發(fā)生界面反應(yīng)，兩者之間的反應(yīng)產(chǎn)物為Al4C3，其晶面間距為0.827nm，為(003)晶面；Al基體的(111)晶面與MWCNTs的(002)晶面及Al4C3的(003)晶面的界面結(jié)合良好，界面存在MWCNTs(002)∥Al4C3(003)的晶體學(xué)位相關(guān)系。
關(guān)鍵字: MWCNTs/Al復(fù)合材料；旋轉(zhuǎn)摩擦擠壓；界面；Al4C3
（1. National Defence Key Discipline Laboratory of Light Alloy Processing Science and Technology,
Nanchang Hangkong University, Nanchang 330063, China;
2. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China）
Abstract:The multi-walled carbon nanotubes (MWCNTs) reinforced Al matrix composites were prepared by rotational friction extrusion (RFE). The interface microstructures of MWCNTs/Al composites were observed by high resolution transmission electron microscopy (HRTEM). The interface reaction was analyzed. The results show that the interface reaction occurs between the Al-C in MWCNTs/Al composites. The reaction product is Al4C3, with spaced interplanar of 0.827nm, which as (003) crystal plane of Al4C3. The interface combination among Al(111) planes, MWCNTs(002) planes and Al4C3(003) planes is well. There is crystallographic orientation relationship of MWCNTs(002) parallel to Al4C3(003) at the interface.
Key words: MWCNTs/Al composite; rotational friction extrusion; interface; Al4C3
