Comparison of Citric Acid and Sulfuric Acid in Type III Aluminum Anodizing
Location
Allen E. Paulson College of Engineering and Computing (CEC)
Session Format
Poster Presentation
Co-Presenters and Faculty Mentors or Advisors
Dr. Mahmoud Baniasadi, Faculty Advisor
Abstract
Anodizing is the process by which a protective oxide layer is formed through an electrolytic process, on the base metal anode. MIL-A-8625 recognizes three types of Aluminum Anodic Oxide coating (AAO). The current industry standard for Type III Hardcoat anodizing is a chilled sulfuric acid aqueous solution. Type III Hardcoat requires a 0.002 coating thickness, and a uniform dye appearance. The purpose of this project is to compare the coatings achieved by different electrolytic solutions and determine if the properties of MIL-A-8625 Type III Hardcoat are achievable with a citric acid aqueous solution.
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.
Presentation Type and Release Option
Presentation (Open Access)
Recommended Citation
Bell, Kristifer, "Comparison of Citric Acid and Sulfuric Acid in Type III Aluminum Anodizing" (2021). GS4 Georgia Southern Student Scholars Symposium. 106.
https://digitalcommons.georgiasouthern.edu/research_symposium/2021/2021/106
Comparison of Citric Acid and Sulfuric Acid in Type III Aluminum Anodizing
Allen E. Paulson College of Engineering and Computing (CEC)
Anodizing is the process by which a protective oxide layer is formed through an electrolytic process, on the base metal anode. MIL-A-8625 recognizes three types of Aluminum Anodic Oxide coating (AAO). The current industry standard for Type III Hardcoat anodizing is a chilled sulfuric acid aqueous solution. Type III Hardcoat requires a 0.002 coating thickness, and a uniform dye appearance. The purpose of this project is to compare the coatings achieved by different electrolytic solutions and determine if the properties of MIL-A-8625 Type III Hardcoat are achievable with a citric acid aqueous solution.
