Development of a metal-to-metal imprinting process: Transcription quality analysis and surface wettability characterization
| Autor: | Sung Jea Park, Taek Yong Hwang, Jeong Young Choi, Jeongjin Kang, Moonwoo La, Dongwhi Choi, Seokkwan Hong |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Design of experiments General Physics and Astronomy Surfaces and Interfaces General Chemistry Condensed Matter Physics Laser Surfaces Coatings and Films law.invention Metal Contact angle Taguchi methods Chemical engineering Machining law visual_art Femtosecond visual_art.visual_art_medium Wetting |
| Zdroj: | Applied Surface Science. 527:146823 |
| ISSN: | 0169-4332 |
| Popis: | Micro- or nano-engineered (MNE) metal surfaces have high industrial utility because they have high mechanical strength, and also possess the electromagnetic properties of the metal and structure-mediated surface characteristics. Therefore, there is a large demand for mass production technologies for fabricating metallic surfaces having micro- or nano-patterns. In this study, we propose a process technology comprising femtosecond (fs) laser machining for fabricating a stamp, and metal-to-metal (M2M) imprinting for replicating its MNE surface. The major process conditions affecting the transcription quality (TQ) of the micro-/nano-patterns were investigated utilizing the design of experiments (DOE) based on the Taguchi method. The TQ analysis was carried out based on the signal-to-noise (S/N) ratios of the geometric parameters according to the process conditions applied during M2M imprinting. In addition, the water contact angles (CAs) for the fabricated stamps and imprinted Al substrates were measured, and their surface wettability with respect to the TQ thus characterized. |
| Databáze: | OpenAIRE |
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