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Paper Abstract and Keywords
Presentation 2025-12-27 11:05
Anodic oxidation of aluminum alloys by electrolytic sulfuric acid -- Effect of oxidants --
Masaaki Tsutsumi, Yukihiro Sakamoto (CIT) OME2025-49
Abstract (in Japanese) (See Japanese page) 
(in English) Anodic oxidation is a process in which an oxide film is formed on the surface layer by energizing the metal as an anode in the electrolytic solution.
In this study, we examined the effect of various oxidants on the anodic oxidation of aluminum alloys by electrolytic sulfuric acid.
The Raman spectrum after anodization shows that the peak of peroxodisulfuric acid is lower than before anodization. It was also found that the total concentration of oxidants decreased by approximately 0.5–1.0 g/l. Vicker’s hardness was slightly harder in the electrolyzed sulfuric acid bath than in the sulfuric acid bath, approximately 1.1 times harder. Surface observation by FE-SEM revealed that micropores of about 5~10 nm in all samples. Chemical bonding state analysis of the surface by XPS revealed a peak of Al2O3 in both samples.
Keyword (in Japanese) (See Japanese page) 
(in English) Aluminum / Anodic oxidation / Electrolytic sulfuric acid / Diamond electrode / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 309, OME2025-49, pp. 37-41, Dec. 2025.
Paper # OME2025-49 
Date of Issue 2025-12-19 (OME) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF OME2025-49

Conference Information
Committee OME  
Conference Date 2025-12-26 - 2025-12-27 
Place (in Japanese) (See Japanese page) 
Place (in English) OKINAWAKEN SEINENKAIKAN 
Topics (in Japanese) (See Japanese page) 
Topics (in English) biotechnology, surface and interfacial phenomena, measurement technology, electronics, etc. 
Paper Information
Registration To OME 
Conference Code 2025-12-OME 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Anodic oxidation of aluminum alloys by electrolytic sulfuric acid 
Sub Title (in English) Effect of oxidants 
Keyword(1) Aluminum  
Keyword(2) Anodic oxidation  
Keyword(3) Electrolytic sulfuric acid  
Keyword(4) Diamond electrode  
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1st Author's Name Masaaki Tsutsumi  
1st Author's Affiliation Graduate school Chiba Institute of Technology (CIT)
2nd Author's Name Yukihiro Sakamoto  
2nd Author's Affiliation Chiba Institute of Technology (CIT)
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Speaker Author-1 
Date Time 2025-12-27 11:05:00 
Presentation Time 15 minutes 
Registration for OME 
Paper # OME2025-49 
Volume (vol) vol.125 
Number (no) no.309 
Page pp.37-41 
#Pages 5 
Date of Issue 2025-12-19 (OME) 

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