Development of in-situ Electrochemical Imaging Plate for Interfacial Reaction and Its Application to Estimation of Residual Lifetime of Metallic Materials

2015 Fiscal Year Final Research Report

• Project/Area Number: 25289235
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: Hokkaido University
• Principal Investigator: Fushimi Koji 北海道大学, 工学(系)研究科(研究院), 准教授 (20271645)
• Co-Investigator(Renkei-kenkyūsha): HOMMA Takayuki 早稲田大学, 理工学術院, 教授 (80238823) ; SAITO Mikiko 早稲田大学, ナノテクノロジ研究所, 准教授 (80386739)
• Research Collaborator: LEE Jun-Seob ; TAKABATAKE Yu ; YANAGISAWA Kei ; JIN Misako ; YAMAMOTO Yudai
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 材料加工・処理 / ヘテロ反応 / 可視化

Outline of Final Research Achievements

A 16x16ch Au multielectrode array with a diameter of 10 um and an inter-electrode distance of 100 um was fabricated. Electrochemical measurements using a made-to-order 64 ch multichannel potentiostat revealed that all microelectrodes operated as an individual microelectrode, although their properties varied widely. Polarization of 8x8ch microelectrodes in the array showed an interference of diffusion layer formed on the microelectrodes. The interference was also successfully simulated with a FEM numerical modeling of three-dimensional diffusion problem. The degree of interference during the dynamic polarization of the array could be normalized by the geometry of microelectrode diameter and inter-electrode distance.

Free Research Field

腐食科学