Construction of a Scanning Electrochemical Microscope for Evaluation of the Heterogeneity of Passive Films
用于评估钝化膜异质性的扫描电化学显微镜的构建
基本信息
- 批准号:08555166
- 负责人:
- 金额:$ 5.82万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (A)
- 财政年份:1996
- 资助国家:日本
- 起止时间:1996 至 1997
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
A scanning electrochemical microscope (SECM) was successfully constructed to evaluate the heterogeneity of passive films. A cross section of Pt wire with a diameter of 10mum sealed into glass tube was used as a scanning probe electrode. A commercial type of potentiostat was improved to a bipotentiostat which is capable of controlling independently the potentials of probe and specimen electrodes. The constructed SECM has a lateral resolution of 20mum, wich is two times as much as a diameter of probe electrode.Two iron plates embedded in epoxy resin were anodically polarized at different potentials in pH8.4 borate solution to form passive films with different thickness. Afterward, in pH8.4 borate solution containing Fe (CN) _6^<4->, the probe electrode was polarized at the potentioal at which Fe (CN) _6^<4-> can be oxidized to Fe (CN) _6^<3->, whereas the two iron plates were polarized at the potetial at which Fe (CN) _6^<3-> can be reduced to Fe (CN) _6^<4->. The difference in thickness … More between passive films on two iron plates could be distinguished from the probe current image. The heterogeneity of passive film formed on polycrystalline iron electrode with distinct grains was also examined in the same manner. The probe current image depended on the grain orientation and the probe current increased in the order of grain orientation, {100}, {111}, and {110}. This difference in probe current results from the difference in thickness of passive films.An electropolished titanium specimen was anodically oxidized in pH 8.4 borate solution to form the passive film. The heterogeneity of the passive film was evaluated using the SECM.It is found from the probe current image that the heterogeneity of the passive film increases with increasing anodic potential for film formation above 4 V_<SHE>. This heterogeneity corresponds to the shape of each substrate grain, suggesting that the passive film on each substrate grain differs in thickness and defective structure.A scanning photoelectrochemical microscope (SPECM) is being developed by attaching an optical fiber to the probe electrode of SECM.SPECM would be useful to evaluate the difference in defective structures of the passive films. Less
成功地搭建了一台扫描电化学显微镜(SECM)来评价钝化膜的非均质性。用直径为10微米的铂丝密封在玻璃管中作为扫描探针电极。将商品型恒电位仪改进为可独立控制探头电极和样品电极电位的双恒电位仪。所构建的SECM的横向分辨率为20um,是探针电极直径的两倍。在pH8.4的硼酸盐溶液中,将两块镶嵌在环氧树脂中的铁片在不同的电位下进行阳极极化,形成不同厚度的钝化膜。然后,在含Fe(CN)_6^<;4->;的pH8.4的硼酸盐溶液中,在Fe(CN)_6^<;4->;的电位下极化,而在Fe(CN)_6^<;3->;的电位下极化两块铁板。…厚度的差异两个铁板上的钝化膜之间的更多可以从探头电流图像中区分出来。用同样的方法研究了多晶铁电极上形成的不均匀钝化膜。探针电流像依赖于晶粒取向,且探针电流按晶粒取向、{100}、{111}、{110}的顺序增大。这种探头电流的差异是由于钝化膜厚度的不同造成的。在pH为8.4的硼酸盐溶液中,电解抛光的钛样品被阳极氧化形成钝化膜。用扫描电子显微镜(SECM)对钝化膜的非均质性进行了分析,发现在4V<;Se>;以上,随阳极成膜电位的增加,钝化膜的非均质性增加。这种不均一性与每个基片颗粒的形状相对应,表明每个基片颗粒上的钝化膜在厚度和缺陷结构上是不同的。扫描光电化学显微镜(SPECM)是通过在SECM的探针电极上连接光纤来开发的,SPECM将有助于评估钝化膜缺陷结构的差异。较少
项目成果
期刊论文数量(11)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Koji FUSHIMI,Kazuhisa AZUMI,Masahiro SEO: "Evaluation of Heterogeneity of Passive Film on Iron and Titanium by a Scnning Electrochemical Microscope" Proc.of '97 Zairyo-to-Kankyo Meeting. 3-6 (1997)
Koji FUSHIMI、Kazuhisa AZUMI、Masahiro SEO:“通过扫描电化学显微镜评估铁和钛上钝化膜的异质性”Proc.of 97 Zairyo-to-Kankyo Meeting。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
伏見 公志, 安住 和久, 瀬尾 眞浩: "走査電気化学顕微鏡による鉄およびチタン表面不働態皮膜の不均一性評価" 材料と環境'97講演集. 3-6 (1997)
Kimishi Fushimi、Kazuhisa Azumi、Masahiro Seo:“使用扫描电化学显微镜评估铁和钛表面钝化膜的异质性”材料与环境论文集 97 (1997)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Koji FUSHIMI,Masahiro SEO,Eiji FUJIMOTO: "Tentative Evaluation of Passive Film on Iron by a Scanning Electrochemical Microscope." Proc.of the 43rd.Discussion Meeting of Jpn.Soc.Corros.Eng.303-304 (1996)
Koji FUSHIMI、Masahiro SEO、Eiji FUJIMOTO:“通过扫描电化学显微镜对铁上钝化膜的初步评估”。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
伏見公志, 瀬尾眞浩: "走査電気化学顕微鏡による鉄不働態皮膜の不均一性評価の試み" 材料と環境. 46・12. 797-803 (1997)
Koshi Fushimi、Masahiro Seo:“尝试使用扫描电化学显微镜评估铁钝化膜的异质性”材料与环境 46・12 (1997)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Masahiro SEO,Koji FUSHIMI: "Surface by a Scanning Electrochemical Microscope." Proc.JIM Symposium on "New Analytical Methods of Surface and Analysis of Reaction Distribution at Electrod Interface". 17-20 (1997)
Masahiro SEO、Koji FUSHIMI:“通过扫描电化学显微镜观察表面。”
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
SEO Masahiro其他文献
SEO Masahiro的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('SEO Masahiro', 18)}}的其他基金
Nano-mechano-electrochemistry of Passive Metal Surfaces
钝化金属表面的纳米机械电化学
- 批准号:
13450288 - 财政年份:2001
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
COMBINATION OF SCANNING ELECTROCHEMICAL MICROSCOPY AND LOCAL ELECTROCHEMICAL IMPEDANCE METHOD
扫描电化学显微镜与局部电化学阻抗法的结合
- 批准号:
10555236 - 财政年份:1998
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
MECHANO-ELECTROCHEMISTRY OF MICRO-SURFACE AREA OF MATERIALS
材料微表面区域的机械电化学
- 批准号:
09305047 - 财政年份:1997
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Microscopic In-situ Evaluation of Corroding Surface of Film
薄膜腐蚀表面的显微原位评价
- 批准号:
06044006 - 财政年份:1994
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for international Scientific Research
Study on Anodic Oxidation of Metals and Semiconductors by Electroluminescence Measurement
电致发光测量金属和半导体阳极氧化的研究
- 批准号:
03650561 - 财政年份:1991
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
In-Situ Gravimetrical Study on Corrosion Reaction of Metal Thin Film by a Quartz Oscillator
石英振荡器对金属薄膜腐蚀反应的原位重量分析研究
- 批准号:
63470052 - 财政年份:1988
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
Study of Passive Films on Iron-base Alloy in High-Temperature-High -Pressure Aqueous Solution
高温高压水溶液中铁基合金钝化膜的研究
- 批准号:
60550496 - 财政年份:1985
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
相似海外基金
Correlation between electronic structure and corrosion resistance of passive film of H-charged stainless steel
充氢不锈钢钝化膜电子结构与耐蚀性的相关性
- 批准号:
23K04434 - 财政年份:2023
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
In-situ high-resolution observation and analysis of passive film of stainless steel in aqueous solution by atomic force microscopy
不锈钢在水溶液中钝化膜原子力显微镜原位高分辨率观察与分析
- 批准号:
17K18997 - 财政年份:2017
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for Challenging Research (Exploratory)
Effect of passive film on tribocorrosion
钝化膜对摩擦腐蚀的影响
- 批准号:
20560686 - 财政年份:2008
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Flow influenced crevice corrosion modeling with passive film self-repair
流动影响的缝隙腐蚀建模与钝化膜自修复
- 批准号:
352571-2007 - 财政年份:2007
- 资助金额:
$ 5.82万 - 项目类别:
University Undergraduate Student Research Awards
Passive film formation and breakdown on metals
金属上钝化膜的形成和破坏
- 批准号:
7011-1998 - 财政年份:2002
- 资助金额:
$ 5.82万 - 项目类别:
Discovery Grants Program - Individual
Passive film formation and breakdown on metals
金属上钝化膜的形成和破坏
- 批准号:
7011-1998 - 财政年份:2000
- 资助金额:
$ 5.82万 - 项目类别:
Discovery Grants Program - Individual
Modification of Passive Film Formed on Environmental Materials by Photo Irradiation
光辐照对环境材料上形成的钝化膜进行改性
- 批准号:
11650742 - 财政年份:1999
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Passive film formation and breakdown on metals
金属上钝化膜的形成和破坏
- 批准号:
7011-1998 - 财政年份:1999
- 资助金额:
$ 5.82万 - 项目类别:
Discovery Grants Program - Individual
Passive film formation and breakdown on metals
金属上钝化膜的形成和破坏
- 批准号:
7011-1998 - 财政年份:1998
- 资助金额:
$ 5.82万 - 项目类别:
Discovery Grants Program - Individual
Effects of Acidity on Passive Film-Breakdown and Repassivation Processes in Alloy-Molten Salt Interface
酸度对合金-熔盐界面钝化膜破坏和再钝化过程的影响
- 批准号:
10450268 - 财政年份:1998
- 资助金额:
$ 5.82万 - 项目类别:
Grant-in-Aid for Scientific Research (B)