| 空心微球结构Au/Ag合金泡沫块体的制备 |
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| 引用本文： | 牛高,李恺,罗江山,韩尚君,马拥军,李佳,唐永建,谭秀兰.空心微球结构Au/Ag合金泡沫块体的制备[J].强激光与粒子束,2012,24(2):353-356. |
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| 作者姓名： | 牛高 李恺 罗江山 韩尚君 马拥军 李佳 唐永建 谭秀兰 |
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| 作者单位： | 1.中国工程物理研究院 激光聚变研究中心, 四川 绵阳 621 900 |
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| 基金项目： | 等离子体物理国防科技重点实验室基金项目(9140C6805021008)； 国家自然科学基金项目(10804101) |
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| 摘 要： | 将平均晶粒尺寸为4.6 nm的金粒子通过静电作用粘附于聚苯乙烯（PS）微球表面用于化学镀，化学镀金后PS表面的金沉积层几乎达到完全包覆，厚度70~90 nm；在Au/PS表面进行化学镀银，沉积的银颗粒堆积紧密，颗粒大小较先前沉积的金颗粒大，镀覆层厚度增厚至200~400 nm；模板去除后，获得了完全自支撑的Au40Ag60空心微球结构的圆柱状泡沫材料。制备的金银合金泡沫由直径约10 m的空心球壳组成，圆柱体直径约5 mm，密度约1.2 g/cm3。
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| 关 键 词： | 空心微球 金银合金泡沫 块体 模板沉积 |
| 收稿时间： | 2011/6/30 |
Preparation of monolithic foamed Au/Ag alloy with hollow microspheres |
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| Tan Xiulan
,
Niu Gao
,
Li Kai
,
Luo Jiangshan
,
Han Shangjun
,
Ma Yongjun
,
Li Jia
,
Tang Yongjian.Preparation of monolithic foamed Au/Ag alloy with hollow microspheres[J].High Power Laser and Particle Beams,2012,24(2):353-356. |
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| Authors: | Tan Xiulan Niu Gao Li Kai Luo Jiangshan Han Shangjun Ma Yongjun Li Jia Tang Yongjian |
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| Affiliation: | 1.Research Center of Laser Fusion,CAEP,P.O.Box 919-987,Mianyang 621900,China |
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| Abstract: | The polystyrene(PS) microspheres were coated by gold colloid with an average grain size of 4.6 nm by the electrostatic effect, and then electroless plated with gold silver consecutively. The deposited gold layer was 70 to 90 nm thick, almost coating the PS spheres completely. The silver particles deposited subsequently were compact, and larger than the previously deposited gold particles, forming a 200 to 400 nm-thick layer on the surface of each Au/PS microsphere. The self-supported hollow-sphere Au40Ag60 alloy was then obtained after the template being removed. Finally, the columniform foamed Au-Ag alloy, 5 mm in diameter, 1.2 g/cm3 in density, was obtained with the hollow spheres of 10 μm diameter after heat treatment. |
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| Keywords: | hollow microspheres Au/Ag alloy foam monolith template-depositing |
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