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当前位置: 首页 > 文章 > 水曲柳单板表面化学镀Ni-Cu-P三元合金 林业科学 2007,43 (11) 92-95
Position: Home > Articles > Electroless Deposition of Ni-Cu-P Alloy on Fraxinus mandshurica Veneer Scientia Silvae Sinicae 2007,43 (11) 92-95

水曲柳单板表面化学镀Ni-Cu-P三元合金

作  者：
李坚;王立娟
单  位：
东北林业大学生物质材料科学与技术教育部重点实验室
关键词：
单板;化学镀;Ni-Cu-P合金
摘  要：
利用化学镀方法在水曲柳单板表面沉积Ni-Cu-P三元合金,考察镀液pH值和施镀温度对镀后单板电磁屏蔽效能的影响,利用X-射线衍射(XRD)和能谱(EDS)分析各镀层的组织结构和成分含量,采用扫描电镜(SEM)观察镀后单板的表面形貌。结果表明:镀液的pH值在8.5～9.5范围内,所得各镀层均为微晶态,但Cu和P的含量有所差异。镀液的pH值为9.25时,镀后单板的电磁屏蔽效能在9kHz～1.5GHz频段达50dB,镀层中Cu和P的含量分别为9.73%和1.70%;镀液的pH值恒定,施镀温度由60℃升高至72℃,所得镀层均为微晶镀层,其中63℃施镀单板的电磁屏蔽效能最高。扫描电镜观察发现,木材表面完全被均匀、致密、连续的镀层覆盖,具有显著的金属光泽。
译  名：
Electroless Deposition of Ni-Cu-P Alloy on Fraxinus mandshurica Veneer
作  者：
Li Jian Wang Lijuan(Key Laboratory of Bio-Based Material Science and Technology of Ministry of Education,Northeast Forestry University Harbin 150040)
关键词：
veneer; electroless plating; Ni-Cu-P alloy
摘  要：
Ni-Cu-P alloy was deposited on Fraxinus mandshurica veneer by using electroless plating. The effects of pH value and plating temperature on electromagnetic shielding effectiveness were investigated. The structure and composition of each layer were analyzed by X-ray diffractometer(XRD) and energy dispersion spectrometer(EDS) respectively. And surface features of plated veneer were observed by scanning electron microscopy(SEM). The results show that the structures of each layer obtained under pH value in the range from 8.5 to 9.5 are microcrystalline. However, the compositions of copper and phosphorus in the layers under different pH value are different. The compositions of copper and phosphorus are 9.73% and 1.70% respectively and the electromagnetic shielding effectiveness of plated veneer is up to 50 dB at frequencies from 9 kHz to 1.5 GHz when pH value of the plating solution is 9.25.The structures of layers obtained under invariable pH value and temperature from 60 ℃ to 72 ℃ are all microcrystalline. And the electromagnetic shielding effectiveness of plated veneer is highest. It was found at 63 ℃ by SEM that the surface of wood is covered by uniform compact layer and has remarkable metallic luster.

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