| Electroless Ni-Co-P Coating of Cenospheres Using Ag(NH_3)_2~+ Activator |
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| 作者姓名： | ZENG Ai-xiang w XIONG Wei-hao * . |
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| 作者单位： | ZENG Ai-xiang w，XIONG Wei-hao * 1. Department of Chemistry，Changsha University of Science and Technology，Changsha，China 2. State Kay Laboratory of Die &Mould Technology，Huazhong University of Science and Technology，Wuhan，China |
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| 基金项目： | 湖南省自然科学基金，湖南省教育厅科研项目 |
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| 摘 要： | FLY ASH CENOSPHERES are primarily a by-productin power generation plants.Research is in progress toeffectively use this by-product to produce new usableand profitable materials as they pose major disposaland environmental problems.Fly ash cenospheres areunique,property stable,non-toxic,non-metallic hollowmicro-particles.Due to the unique hollow structure andphysical mechanics properties,Cu^Ag and other metalsare often coated on cenospheres to produce lightweightmetal matrix composites,w…
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Electroless Ni-Co-P Coating of Cenospheres Using Ag(NH3)2+ Activator |
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| ZENG Ai-xiang w,XIONG Wei-hao * ..Electroless Ni-Co-P Coating of Cenospheres Using Ag(NH_3)_2~+ Activator[J].Transactions of Materials and Heat Treatment,2004,25(5). |
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| Authors: | ZENG Ai-xiang XIONG Wei-hao |
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| Affiliation: | 1. Department of Chemistry, Changsha University of Science and Technology, Changsha, China;State Kay Laboratory of Die &Mould Technology, Huazhong University of Science and Technology, Wuhan, China
2. State Kay Laboratory of Die &Mould Technology, Huazhong University of Science and Technology, Wuhan, China |
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| Abstract: | Electroless Ni-Co-P-coating of fly-ash cenosphere particles is demonstrated in the present investigation. The Electroless Ni-Co-P-coating process is modified by replacing the conventional sensitization and activation steps with only using activation step with Ag(NH3)2+ activator. The cenospheres are characterized by scanning electron microscope (SEM), energy dispersive spectroscopy (EDX), X-ray diffraction analysis (XRD) and X-ray photoelectron spectroscopy (XPS) during and after the coating process. Relatively uniform coating is obtained under the given coating conditions. The possible mechanism of electroless Ni-Co-P-coating of cenospheres utilizing Ag(NH3)2+ activator is suggested. The low density Ni-Co-P coated cenospheres may be utilized for manufacturing conducting polymers for EMI-shielding application and microwave absorbing materials. |
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| Keywords: | Ni-Co-P coating fly ash cenopsphere particles Ag(NH3)2+ activator electroless plating |
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