Search Results - "Asoh, Hidetaka"

Mechanism of hot water sealing of anodic films formed on aluminum by Ono, Sachiko, Asoh, Hidetaka

“…[Display omitted] •Sealing process of anodic alumina films was studied by advanced SEM, TEM and XPS.•In boiling water, boehmite precipitates as small flakes…”
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A new perspective on pore growth in anodic alumina films by Ono, Sachiko, Asoh, Hidetaka

“…[Display omitted] •Nanostructures of anodic alumina films are studied by advanced analysis techniques.•The atypical pore structure of anode films can be…”
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Two-step bipolar anodization: Design of titanium with two different faces by Kokubo, Yuuka, Asoh, Hidetaka

“…•The oxidation area on the BPE was visualized by means of the interference color.•Two faces of titanium were obtained using two-step bipolar anodization.•Two…”
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Effects of size and position of an unconnected aluminum electrode on bipolar anodization in an AC electric field by Takeuchi, Ryo, Asoh, Hidetaka

“…The effects of the size and position of an aluminum bipolar electrode (BPE) on the uniformity of formation of anodic porous alumina in an alternating current…”
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Characteristics and corrosion resistance of plasma electrolytic oxidation coatings on AZ31B Mg alloy formed in phosphate – Silicate mixture electrolytes by Mori, Yoichi, Koshi, Akihiko, Liao, Jinsun, Asoh, Hidetaka, Ono, Sachiko

“…•PEO coatings formed on AZ31B in various P:Si ratio electrolytes were studied.•The effect of P:Si ratio on the corrosion resistance was…”
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Bipolar anodic electrochemical exfoliation of graphite powders by Hashimoto, Hideki, Muramatsu, Yusuke, Nishina, Yuta, Asoh, Hidetaka

“…The electrochemical exfoliation of graphite has attracted considerable attention as a method for large-scale, rapid production of graphene and graphene oxide…”
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Effects of Nanoporous Structure of Anodic Films on Adhesive Strength between Aluminum Alloys and Polyamide Resin by Sato, Kota, Asoh, Hidetaka, Yamamoto, Hitomi

“…In this study, the effects of the nanoporous structure of anodic films on adhesive strength between aluminum alloys and polyamide resin were systematically…”
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Enhanced uniformity of apatite coating on a PEO film formed on AZ31 Mg alloy by an alkali pretreatment by Anawati, Asoh, Hidetaka, Ono, Sachiko

“…Anodization by plasma electrolytic oxidation (PEO) and subsequent apatite coating were performed on a biodegradable AZ31 magnesium alloy to enhance its…”
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Effects of ethanol on the efficiency of the formation of anodic alumina in sulfuric acid by Asoh, Hidetaka, Matsumoto, Mikimasa, Hashimoto, Hideki

“…In the interest of enabling practical applications of anodic oxide films, it is important to develop methods to improve the coulombic efficiency of film…”
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Effect of Electrolyte Concentration on the Structure and Corrosion Resistance of Anodic Films Formed on Magnesium through Plasma Electrolytic Oxidation by Ono, Sachiko, Moronuki, Shuichi, Mori, Yoichi, Koshi, Akihiko, Liao, Jinsun, Asoh, Hidetaka

“…[Display omitted] The thickness and corrosion resistance of films formed on AZ31 magnesium alloys through plasma electrolytic oxidation for the same amount of…”
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DC bipolar anodization of aluminum: Wider anode area than expected on the bipolar electrodes by Asoh, Hidetaka, Ishizuka, Fu, Kuroki, Shoma, Takeuchi, Ryo

“…[Display omitted] •The potential gradients on bipolar electrodes were investigated.•Bipolar anodization of aluminum was conducted in a direct current electric…”
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Unusual surfaces with structural gradients: Investigation of potential gradients on bipolar electrodes during bipolar anodization of aluminum by Asoh, Hidetaka, Takeuchi, Ryo, Hashimoto, Hideki

“…[Display omitted] •The potential gradients on bipolar electrodes were investigated.•Bipolar anodization of Al was conducted in an alternating current electric…”
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NMR Spectroscopic Analysis of the Local Structure of Porous-Type Amorphous Alumina Prepared by Anodization by Hashimoto, Hideki, Yazawa, Koji, Asoh, Hidetaka, Ono, Sachiko

“…Alumina is classified as an intermediate oxide that cannot form a glass and is industrially used as a multifunctional material. Intensive studies on the…”
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Fabrication of thick nanoporous oxide films on stainless steel via DC anodization and subsequent biofunctionalization by Asoh, Hidetaka, Nakatani, Madoka, Ono, Sachiko

“…Remarkably thick nanoporous anodic films have been formed through simple DC anodization by adding hydrogen peroxide as an oxidant to a sulfuric acid…”
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Fabrication and Characterization of Single Phase α-Alumina Membranes with Tunable Pore Diameters by Masuda, Tatsuya, Asoh, Hidetaka, Haraguchi, Satoshi, Ono, Sachiko

“…Nanoporous and single phase α-alumina membranes with pore diameters tunable over a wide range of approximately 60-350 nm were successfully fabricated by…”
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Potential of micrometer-sized graphite as a catalyst for chemical etching of silicon by Asoh, Hidetaka, Sekido, Daichi, Hashimoto, Hideki

“…The chemical etching of silicon substrates, using graphite microparticles as a catalyst, was investigated. Graphite-coated silicon substrates were fabricated…”
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Self-ordering of anodic porous alumina formed in organic acid electrolytes by Ono, Sachiko, Saito, Makiko, Asoh, Hidetaka

“…New self-ordering porous alumina films were fabricated in organic acid electrolytes. Highly ordered cell arrangements of porous alumina films were realized in…”
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Design of Multiphase Metal Balls via Maskless Localized Anodization Based on Bipolar Electrochemistry by Asoh, Hidetaka, Mizota, Kanako, Kokubo, Yuuka

“…Nanoporous metal‐oxide films formed on some metals and their alloys during anodization are crucial for both basic research and commercial applications. They…”
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Chemical reaction between lead-free multicomponent alkali borosilicate glass frit and hematite during heat treatment by Hashimoto, Hideki, Terasawa, Akane, Inada, Hirofumi, Takaishi, Taigo, Fujii, Tatsuo, Asoh, Hidetaka

“…A mixture of a lead-free multicomponent alkali borosilicate glass frit containing zinc ions and hematite was heat-treated under various conditions to elucidate…”
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Effects of anion incorporation on the local structure of porous-type amorphous alumina prepared by anodization: NMR study of Al coordination numbers by Hashimoto, Hideki, Fujita, Yuki, Yazawa, Koji, Asoh, Hidetaka

“…•Factors affecting local structure of porous-type anodic amorphous alumina was clarified.•Local structure of high-purity amorphous alumina does not depend on…”
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