Improvement of corrosion properties of plasma in an aluminum alloy 6061-T6 by phytic acid anodization temperature
- Title
- Improvement of corrosion properties of plasma in an aluminum alloy 6061-T6 by phytic acid anodization temperature
- Author
- 정진욱
- Keywords
- Phytic acid; Anodization; Aluminum oxide; Corrosion properties; Plasma resistance
- Issue Date
- 2020-12
- Publisher
- ELSEVIER
- Citation
- JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, v. 11, page. 219-226
- Abstract
- We report on the formation of anodic aluminum oxide (AAO) film using phytic acid
(C6H18O24P6), a naturally obtainable and non-toxic organic acid electrolyte. When the
temperature of the phytic acid electrolytes changes from 0 C to 20 C, the pore size increases,
and the AAO film becomes less dense because the growth rate of the AAO film
increases. In particular, when the temperature of the phytic acid electrolyte is above 15 C,
the AAO film changes dramatically. According to XRD analysis, the alpha-alumina intensity
was relatively higher in the AAO film grown at low-temperatures (0, 5, 10 C) than
high-temperatures (15, 20 C). It was possible to obtain a result that the properties were
better. The microstructural change of the AAO film according to the temperature of the
phytic acid electrolytes affected the breakdown voltage and the number of contamination
particles that are generated, which are important properties for plasma corrosion protection
coating materials. The AAO film grown in the low-temperature has the most suitable
properties for use as a plasma corrosion protection coating material. Notably, the breakdown
voltage of the AAO film is 0.45 kV at 14.9 mm thickness, with no observable crack on
its surface after the plasma corrosion test. These findings provide significant evidence to
support the application of phytic acid as an electrolyte to grow AAOfilms, and the AAOfilm
grown in a phytic acid bath can be applied as a plasma corrosion protection coating
material.
- URI
- https://www.sciencedirect.com/science/article/pii/S2238785420321621?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/174983
- ISSN
- 2238-7854; 2214-0697
- DOI
- 10.1016/j.jmrt.2020.12.086
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
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