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等離子噴涂納米復(fù)合Ag/SnO2電觸頭材料放電性能研究
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國(guó)家自然科學(xué)基金 (50834003)；西安市產(chǎn)學(xué)促進(jìn)工程工業(yè)應(yīng)用技術(shù)研發(fā)項(xiàng)目(CXY08001)；陜西省教育廳專項(xiàng)科研計(jì)劃項(xiàng)目(09JK446，11JK0808)


Electrical Property of Nanocomposite Ag/SnO2 Electrical Contact Material Prepared by Plasma Spraying
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    摘要:

    采用化學(xué)共沉淀法和高能球磨法制備納米Ag-12%SnO2混合粉末，用等離子噴涂法將混合粉噴涂在Cu基表面，制備納米復(fù)合Ag/SnO2涂層。測(cè)試涂層的物理性能和真空條件下的電性能，利用SEM觀察分析放電后的表面組織結(jié)構(gòu)。結(jié)果表明，納米復(fù)合Ag/SnO2涂層越厚，密度越小，電阻率越大，而硬度與SnO2分布狀況有關(guān)；涂層表面平整度影響耐電壓強(qiáng)度值的分布；納米復(fù)合Ag/SnO2涂層的分散電弧性能好，電弧燒蝕速率小

    Abstract:

    Nanocomposite Ag/SnO2 coating was prepared on pure Cu-surface by plasma spraying using the Ag-12%SnO2 mixed powder fabricated by chemical coprecipitation and high-energy ball milling. The physical property and electrical property were tested in vacuum the surface structure was observed and analyzed by SEM. The results show that the thicker nanocomposite Ag/SnO2 coating is, the smaller density is, the larger resistivity is, the higher the breakdown strength is. The hardness is related to the distribution of SnO2. The distribution of breakdown strength values is connected with coating surface roughness. The arc of nanocomposite Ag/SnO2 coating is dispersive and the arc erosion rate is low

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姜鳳陽(yáng),王俊勃,付 翀,楊敏鴿,賀辛亥,蘇曉磊,丁秉鈞,劉江南.等離子噴涂納米復(fù)合Ag/SnO2電觸頭材料放電性能研究[J].稀有金屬材料與工程,2012,41(8):1443~1446.[Jiang Fengyang, Wang Junbo, Fu Chong, Yang Minge, He Xinhai, Su Xiaolei, Ding Bingjun, Liu Jiangnan. Electrical Property of Nanocomposite Ag/SnO2 Electrical Contact Material Prepared by Plasma Spraying[J]. Rare Metal Materials and Engineering,2012,41(8):1443~1446.]
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  • 收稿日期:2011-08-08
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