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碩士 === 國立中央大學 === 機械工程研究所 === 94 === Abstract This thesis focus on the survey of soft and hard aluminum foil primarily. By changing concentration , etching temperature and etching waveform. We investigated the effects of etching morphology on the surface increment. This experiment first used potent...
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ndltd-TW-094NCU054890912015-10-13T16:31:37Z http://ndltd.ncl.edu.tw/handle/45239162674493139302 none 鋁電解電容器用軟質鋁箔及硬質鋁箔電蝕時電化學舉動之比較研究 Jiuan-Wei Tseng 曾俊瑋 碩士 國立中央大學 機械工程研究所 94 Abstract This thesis focus on the survey of soft and hard aluminum foil primarily. By changing concentration , etching temperature and etching waveform. We investigated the effects of etching morphology on the surface increment. This experiment first used potentiostat to observe the relationship between potential-time and potential-corrosive current under different etching parameters. Thus we could predict the reaction during etching process. According to the selected parameters of electrochemical etching, the aluminum foils have been etched, and the capacitance was measured under EIAJ specifications. For surface, oxide replicas and cross section morphology studies, the samples were examined in the SEM, SEM and OM respectively From the experiments, it was found that there was a proper sulfuric and hydrochloric acid concentration for increment etching. At this concentration we could get a fine microstucture for increasing capacitance. Phosphoric acid could grow a passive film, which protected aluminum from Cl- corrosion. Increased etching temperature could accelerate the diffusion of Cl-. There also had proper etching waveform and temperature for etching process. Bin-Lung Ou 歐炳隆 2006 學位論文 ; thesis 91 zh-TW |
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碩士 === 國立中央大學 === 機械工程研究所 === 94 === Abstract
This thesis focus on the survey of soft and hard aluminum foil primarily. By changing concentration , etching temperature and etching waveform. We investigated the effects of etching morphology on the surface increment.
This experiment first used potentiostat to observe the relationship between potential-time and potential-corrosive current under different etching parameters. Thus we could predict the reaction during etching process. According to the selected parameters of electrochemical etching, the aluminum foils have been etched, and the capacitance was measured under EIAJ specifications. For surface, oxide replicas and cross section morphology studies, the samples were examined in the SEM, SEM and OM respectively
From the experiments, it was found that there was a proper sulfuric and hydrochloric acid concentration for increment etching. At this concentration we could get a fine microstucture for increasing capacitance. Phosphoric acid could grow a passive film, which protected aluminum from Cl- corrosion. Increased etching temperature could accelerate the diffusion of Cl-. There also had proper etching waveform and temperature for etching process.
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Bin-Lung Ou |
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Bin-Lung Ou Jiuan-Wei Tseng 曾俊瑋 |
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Jiuan-Wei Tseng 曾俊瑋 |
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Jiuan-Wei Tseng 曾俊瑋 none |
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Jiuan-Wei Tseng |
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2006 |
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http://ndltd.ncl.edu.tw/handle/45239162674493139302 |
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AT jiuanweitseng none AT céngjùnwěi none AT jiuanweitseng lǚdiànjiědiànróngqìyòngruǎnzhìlǚbójíyìngzhìlǚbódiànshíshídiànhuàxuéjǔdòngzhībǐjiàoyánjiū AT céngjùnwěi lǚdiànjiědiànróngqìyòngruǎnzhìlǚbójíyìngzhìlǚbódiànshíshídiànhuàxuéjǔdòngzhībǐjiàoyánjiū |
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