Anodic oxidization of Al-Y amorphous alloy ribbons and their capacitive properties
作者： Mikio Fukuhara , Tomoyuki Kuroda , Fumihiko Hasegawa , Yasuyuki Shirai , Toshiyuki Hashida
DOI: 10.1016/J.JALLCOM.2018.10.346
关键词:
摘要: Abstract Blackish amorphous aluminium oxide film on AlY10 alloy ribbons was prepared by anodic polarization process in H2SO4 solutions, showing electric storage uneven surfaces with a convexity of 18 nm diameter. The longest discharging time obtained current ratio (I2/I1) 0.4 at 16 V and 5 mass% H2SO4. increases decreases increasing charging current, then saturates after around 100 s 1 μA, respectively. resulting shows vertical line Warburg region Nyquist diagram, rapid the imaginary impedance, phase angle of −90° at 1 mHz Bode demonstrating evidence for use an distributed constant circuit. indicates switching effect both positive (∼+8.6 eV) negative (∼-11.2 eV) potentials.
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