| 个人简介 | |
|---|---|
 Prof. Khaled Habib Kuwait Institute for Scientific Research (KISR), Kuwait |
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| 标题： New Spectro-electrochemical Setup for Determining the Rate Change of Oxide Film Growth of Aluminum by White Light-Optical Interferometry | |
| 摘要： White light interferometry was applied to obtain the rate change of an oxide film growth of aluminum samples during the anodization in aqueous solutions. The thickness (d) of the oxide film was determined by Fabry-Perot, i.e., white light, interferometry. In other words, for the first time, an electromagnetic, i.e., Fabry-Perot, method was utilized to obtain the rate change of the oxide film growth of aluminum samples rather than the electronic, i.e., direct current (DC) or alternating current (AC), methods, as a function of the time (t) of the anodization processes. Therefore, the abrupt rate change of the d(d)/dt was called anodization-emission spectroscopy. The anodization process of the aluminum samples was carried out by the DC method in different sulphuric acid concentrations (0.0,2,4,6,8,10% H2SO4) at room temperature. In the meantime, the Fabry-Perot interferometry was used to determine the difference between d of two subsequent values, d(d), as a function of the elapsed time, dt, of the DC experiment for the aluminum samples in H2SO4 solutions. The Fabry-Perot interferometry was based on a fiber-optic sensor to make real time-white light interferometry possible at the aluminum surfaces in the acid solutions. Also, an abrupt rate change of the d(d)/dt of the oxide film of the aluminum in 2.0,4.0,6.0,8.8,10.0% H2SO4 and in deionized water (0.0% H2SO4) was observed to occur once between 10 to 20 minutes. Then, the d(d)/dt of the oxide film was recorded around zero between 20 to 30 minutes. Eventually, the d(d)/dt of the oxide film was gradually increased during the remaining elapsed time of the experiment. Keywords: Fabry-Perot interferometry, White light interferometry, Oxide film growth, Aluminum, Sulphuric acid, Anodization, Fiber-optics sensor, DC method, and SEM. | |
| 简介： Dr. Khaled Habib holds a Ph.D in Chemical and Materials Engineering from the Optical Science and Technological Center of University of Iowa, Iowa City, Iowa, USA, 1988. Mr. Habib was a Post Doctoral Fellow at the Chemical Engineering Dept., and Materials science Dept., of the Technical University of Aachen, Aachen, Germany, 1991-1992. Mr. Habib is a senior research scientist/a full research professor with KISR (Kuwait). He specializes in “Laser optical interferometry as non-destructive testing (NDT) methods of materials evaluation in corrosive media, corrosion, and nano-structures of metallic glasses”. Mr. Habib has in his credit more than 132 articles in international refereed journals in his area of specialization. He is a fellow of the international Society of Photo- electronics and Optics (SPIE) and a senior member of Optics Society of America (OSA). Also, he is an elected international member of the international Corrosion Council (ICC). | |
