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    卢红霞, 胡行, 张锐, 许红亮, 王海龙. 沉淀包裹法制备Cu/α-Al2O3纳米复合粉体[J]. 机械工程材料, 2006, 30(8): 69-72.
    引用本文: 卢红霞, 胡行, 张锐, 许红亮, 王海龙. 沉淀包裹法制备Cu/α-Al2O3纳米复合粉体[J]. 机械工程材料, 2006, 30(8): 69-72.
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    LU Hong-xia, HU Xing, ZHANG Rui, XU Hong-liang, WANG Hai-long. Preparation of Cu Coated α-Al2O3 Nanocomposite Powders by Liquid Precipitation Method[J]. Materials and Mechanical Engineering, 2006, 30(8): 69-72.
    Citation: LU Hong-xia, HU Xing, ZHANG Rui, XU Hong-liang, WANG Hai-long. Preparation of Cu Coated α-Al2O3 Nanocomposite Powders by Liquid Precipitation Method[J]. Materials and Mechanical Engineering, 2006, 30(8): 69-72.
    shu

    沉淀包裹法制备Cu/α-Al2O3纳米复合粉体

    Preparation of Cu Coated α-Al2O3 Nanocomposite Powders by Liquid Precipitation Method

      摘要
    • 摘要: 以纳米Al2O3、CuSO4·5H2O和纳米铝粉为原料,采用非匀相沉淀工艺获得了纳米铜包裹α-Al2O3复合粉体;研究了反应温度和pH值对复合粉体成分及性能的影响;利用XRD、XPS、TG/DSC、Zeta电位和TEM等方法对复合粉体的成分、热学特性以及形貌特征进行了表征.结果表明:采用反应温度为40 ℃、保温4 h的工艺条件,可以获得纳米铜颗粒包裹Al2O3纳米复合粉体,铜颗粒呈球形,尺寸为10 nm左右.

       

      Abstract: Cu coated α-Al2O3 nanocomposite powders were synthesized by heterogeneous precipitation coating process,with Al2O3,CuSO4·5H2O and nanometer aluminum powders as raw materials.The temperature and pH value of the reaction system were investigated.XRD,XPS,TG/DSC,Zeta potential and TEM were used to analyze the composition,thermo chemistry and microstructure of the composite powders.The results showed that nanometer Cu coated α-Al2O3 composite powders could be obtained if the precipitation reaction temperature was 40 ℃ and time was 4 h.The coating Cu particles had a size about 10 nm with a spherical shape.

       

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