イオンマイグレーションによるガラス基板上の銀デンドライトの成長とそのフラクタル次元

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  • Growth Process and Fractal Dimension of Silver Dendrite by Ionic Migration on Glass Substrate
  • イオンマイグレーション ニ ヨル ガラス キバン ジョウ ノ ギン デンドライ

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The growth process of silver dendrite due to ionic migration on glass substrate has been studied by confocal laser microscope. The migration between screen-printed silver electrodes with gap of 0.5mm was occurred both under the condition of 25°C, 98%R.H, and in the de-ionized water, The results were analyzed by the dimentionality of fractal natures of the dendrite growth. The area S of dendirte increases with time t according to S=tDt, where a factor Dt is approxiately ranging from 0.4 to 4.4. The shape fractal demension of dendrite (Ds) is approxiately ranging from 1.5 to 1.8. We show that a failure time can estimated from Dt, Ds and an unisotropic ratio of dendrite growth.

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