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| 铬-镧镀层的制备及其光谱性能 | |
| 作者姓名： | Liu XZ Wang G Song LL Li X Zhu XQ |
| 作者单位： | 1. 上海应用技术学院化学与环境工程学院,上海,200235 2. 上海应用技术学院化学与环境工程学院,上海200235;上海海洋大学食品学院,上海200090 3. 赣南师范学院,江西赣州,341000 |
| 基金项目： | 国家自然科学基金项目,上海市教委重点学科项目,上海市科委重点项目,上海应用技术学院项目,上海高校特聘教授(东方学者)岗位计划项目 |
| 摘 要： | 用电沉积法分别采用直流电源和脉冲电源制备铬-镧镀层(dc)和铬-镧镀层(pulse).分别用发射光谱法、X衍射法、能谱法和扣描电镜法等对镀层进行表征.铬-镧镀层(dc)为非晶态镀层,铬-镧镀层(pulse)中含有晶态的镧和碳化铬.铬-镧镀层(dc)和铬-镧镀层(pulse)的硬度分别为860.3和930.2 HV,比铬... |
| 关 键 词： | 电沉积 镀层 X衍射谱 能谱 |
Preparation of electrodeposited Cr-La coating and its spectral properties |
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| Liu XZ,Wang G,Song LL,Li X,Zhu XQ.Preparation of electrodeposited Cr-La coating and its spectral properties[J].Spectroscopy and Spectral Analysis,2011,31(7):1964-1967. | |
| Authors: | Liu Xiao-zhen Wang Gang Song Ling-ling Li Xin Zhu Xu-qiang |
| Institution: | School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 200235, China. liuxiaozhen1958@yahoo.com |
| Abstract: | Cr-La coating (dc) and Cr-La coating (pulse) were prepared by electrodeposition method of direct current and pulsating current respectively. The Cr-La coating (dc) and Cr-La coating (pulse) were characterized with ICP-AES, EDAX, XRD and SEM techniques, respectively. Cr-La coating(dc) was amorphous. There were crystalline La and CrC in Cr-La coating (pulse). The microhardness of the Cr-La coating(dc) and Cr-La coating (pulse) were as high as 860.3 and 930.2 HV respectively, which were higher 11.15% and 20.18% higher than that of the Cr coating (774.0 HV). The wear weight losses of Cr-La coating(dc) and Cr-La coating(pulse) were 1.29 and 2.25 times lower than that of Cr coating, respectively. The friction coefficient of Cr coating, Cr-La coating(dc) and Cr-La coating(pulse) were 0. 884, 0. 640 and 0. 648 respectively. The properties of wear weight loss and microhardness of coatings were improved with pulsating current. The wear weight loss and microhardness of Cr-La coating(pulse) were lower 1.75 time lower and higher 8.13% higher than that of the Cr-La coating(dc), respectively. |
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