| PREPARATION AND ANALYSIS OF Ni-P-Zn ELECTROLESS DEPOSITION FROM ALKALI BATH |
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| 作者姓名： | Y.S.Huang F.Z.Cui |
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| 作者单位： | [1]DepartmentofMaterialsScience＆Engineering,TsinghuaUniversity,Beijing100084,China／／InstituteofBiomechanics,SouthChinaUniversityofTechnology,Guangzhou510641,China [2]DepartmentofMaterialsScience＆Engineering,TsinghuaUniversity,Beijing100084,China |
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| 摘 要： | Electroless Ni-P-Zn alloys deposited from alkali bath were investigated in this paper. The deposition bath contained nickel sulfate, zinc chloride and hypophosphate. The process parameters, such as temperature, pH and zinc salt concentration were presented and discussed. The microstructure of the coatings was studied by XRD and SEM. The cathode glowing discharge characters of Ni-P-Zn depositions were studied with luminous Neon lamps. Electrodes deposited by electroless Ni-P alloys were apt to sputter during luminous working hours. Electroless Ni-P-Zn depositions improved the discharge characters of the electrodes. With the concentration of zinc in the deposition rising to 4wt%, electrode sputter was largely restrained. The thickness of the deposition also influenced the discharge characters of the electrode. To avoid electrode sputter, the concentration of zinc has to rise with the thickness of the depositions.
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| 关 键 词： | 无电镀镍-磷-锌合金 电极溅射 阴极辉光放电 机械性能 |
PREPARATION AND ANALYSIS OF Ni-P-Zn ELECTROLESS DEPOSITION FROM ALKALI BATH |
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| Y.S.Huang F.Z.Cui.PREPARATION AND ANALYSIS OF Ni-P-Zn ELECTROLESS DEPOSITION FROM ALKALI BATH[J].Acta Metallurgica Sinica(English Letters),2005,18(3):204-208. |
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| Authors: | YSHuang |
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| Affiliation: | Department of Materials Science＆Engineering,Tsinghua University,Beijing100084,China |
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| Abstract: | Electroless Ni-P-Zn alloys deposited from alkali bath were investigated in this paper. The deposition bath contained nickel sulfate, zinc chloride and hypophosp hate. The process parameters, such as temperature, pH and zinc salt concentratio n were presented and discussed. The microstructure of the coatings was studied b y XRD and SEM. The cathode glowing discharge characters of Ni-P-Zn depositions w ere studied with luminous Neon lamps. Electrodes deposited by electroless Ni-P a lloys were apt to sputter during luminous working hours. Electroless Ni-P-Zn dep ositions improved the discharge characters of the electrodes. With the concentra tion of zinc in the deposition rising to 4wt%, electrode sputter was largely res trained. The thickness of the deposition also influenced the discharge character s of the electrode. To avoid electrode sputter, the concentration of zinc has to rise with the thickness of the depositions. |
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| Keywords: | electroless Ni-P-Zn alloy electrode sputter cathode glowing Discharge |
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