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納米CeO2/Zn-4.5Al-RE-Mg-Ti的復(fù)合攪拌制備工藝研究
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江蘇省高技術(shù)資助項(xiàng)目（GB2001026）


Research on Combination Stirring Fabrication Technology of Nano-CeO2/Zn-4.5Al-RE-Mg-Ti Composites
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    摘要:

    采用卷入能力強(qiáng)的機(jī)械攪拌法制備Zn-4.5Al-RE-Mg-Ti(ZA)合金和納米CeO2團(tuán)簇的初步混合體，然后用高能超聲對(duì)卷入的CeO2顆粒團(tuán)進(jìn)行分散，從而得到名義質(zhì)量分?jǐn)?shù)1%~6%的復(fù)合材料（ZACs）。OM觀察結(jié)果表明，ZACs的室溫金相組織主要包括呈小島狀分布的α(Al)+β(Zn)共析組織和呈層片狀分布的α+β組織。FE-SEM的結(jié)果表明，用該法制備的ZACs中納米CeO2微粒分布均勻。

    Abstract:

    The prime mixture of Zn-4.5Al-RE-Mg-Ti alloy (ZA) and nano-CeO2 clusters was prepared by mechanical stirring method with high engulfing ability. Then the engulfed nano-CeO2 clusters were dispersed by high-intensity ultrasonic to obtain nano-CeO2/ZA composites (ZACs) with the nominal mass fractions of 1%-6%. The optical microscope observations show that the microstructure of ZACs at room temperature consists of island-like eutectoid structure α(Al)+β(Zn) and lamellar structure α+β. Based on the FE-SEM results, nano-CeO2 particulates could be homogeneously distributed in the ZACs prepared by the combination stirring technology.

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周衡志,李子全,曾 光,胡孝昀,陳建康.納米CeO2/Zn-4.5Al-RE-Mg-Ti的復(fù)合攪拌制備工藝研究[J].稀有金屬材料與工程,2010,39(3):534~537.[Zhou Hengzhi, Li Ziquan, Zeng Guang, Hu Xiaoyun, Chen Jiankang. Research on Combination Stirring Fabrication Technology of Nano-CeO2/Zn-4.5Al-RE-Mg-Ti Composites[J]. Rare Metal Materials and Engineering,2010,39(3):534~537.]
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  • 收稿日期:2009-02-19
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