(東北大學(xué) 材料與冶金學(xué)院，沈陽 110004)
摘 要: 以稀土氧化物CeO2為添加劑，研究CeO2對(duì)鍍鎳碳纖維增強(qiáng)鋁合金基復(fù)合材料碳纖維的分布、氣孔率以及力學(xué)性能的影響，利用掃描電鏡分析和拉伸力學(xué)性能檢測(cè)等探討了CeO2在鍍鎳碳纖維增強(qiáng)鋁合金基復(fù)合材料中的行為。結(jié)果表明：CeO2能夠使碳纖維均勻分布在復(fù)合材料中，而不產(chǎn)生分層及團(tuán)聚；而且能夠降低復(fù)合材料的氣孔率，使軋制態(tài)復(fù)合材料的抗拉強(qiáng)度、屈服強(qiáng)度分別提高23%和26%。
關(guān)鍵字: 鋁合金；碳纖維；鍍鎳；CeO2
fiber reinforced aluminium alloy matrix composites
（School of Materials and Metallurgy, Northeastern University,Shenyang 110004, China）
Abstract:The influence of CeO2 as the addition agent on the distribution of carbon fiber, porosity and mechanics of the aluminum alloy matrix composites reinforced with Ni-coated carbon fibers was investigated. The behavior of CeO2 in the aluminum alloy matrix composites reinforced with Ni-coated carbon fibers was discussed by scanning electron microscopy (SEM) and tensile test. The results show that CeO2 can make the distribution of carbon fiber even in the composites, not laminated, not agglomerated, and can reduce the porosity of composites, and increase the tensile strength by 23% and the yield strength by 26% of the composites in the rolling form.
Key words: aluminium alloy; carbon fiber; nickel plating; CeO2
