Kordijazi, Amir and Behera, Swaroop Kumar and Akbarzadeh, Omid and Povolo, Marco and Rohatgi, Pradeep (2020) A statistical analysis to study the effect of silicon content, surface roughness, droplet size and elapsed time on wettability of hypoeutectic cast aluminum-silicon alloys. In: Light Metals Symposia at the 149th The-Minerals-Metals-and-Materials-Society (TMS) Annual Meeting and Exhibition, 23-27 February 2020, San Diego, CA.
Full text not available from this repository.Abstract
In this study, the effect of silicon content, surface roughness, water droplet size, and elapsed time on contact angle (CA) of Aluminum-Silicon alloys were examined. To study wettability the static water contact angle was measured on a given sample using a goniometer. A laser confocal microscopy was used for measuring surface roughness. A full factorial design was utilized for the design of the experiment that includes all possible combinations of the independent factors and their levels (120 combinations). CA for each combination was measured three times, so in total 360 CA measurements were performed. To find the significant factors in CA variation and correlation between the significant factors and CA, Analysis of Variance (ANOVA) and Regression Analysis were performed, respectively. A significance level (alpha) of 0.05 was used for all statistical analyses. Contact angle values averaged 77 degrees +/- 5 degrees with maximum value of 90 degrees and minimum value of 64 degrees, respectively. ANOVA results show that surface roughness and droplet size are significant factors. Regression analysis shows that CA increases by increasing surface roughness and water droplet size.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Funders: | NSF Fundamental (1331532), National Science Foundation (NSF) NSF - Office of the Director (OD) |
| Additional Information: | Light Metals Symposia at the 149th The-Minerals-Metals-and-Materials-Society (TMS) Annual Meeting and Exhibition, San Diego, CA, Feb 23-27, 2020 |
| Uncontrolled Keywords: | Cast Al-Si alloys; Contact angles; Factorial design; Analysis of variance; Regression analysis |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 01 Jun 2023 04:18 |
| Last Modified: | 01 Jun 2023 04:18 |
| URI: | http://eprints.um.edu.my/id/eprint/37070 |
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