Journal
NANO LETTERS
Volume 15, Issue 2, Pages 963-968Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl504694s
Keywords
Metallic glass; thermoplastic embossing; hierarchical patterns; wetting; functional surfaces
Categories
Funding
- National Science Foundation [CMMI-1266277, MRSEC DMR 1119826]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1266277] Funding Source: National Science Foundation
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Surface engineering over multiple length scales is critical for electronics, photonics, and enabling multifunctionality in synthetic materials. Here, we demonstrate a sequential embossing technique for building multi-tier patterns in metals by controlling the size-dependent thermoplastic forming of metallic glasses. Sub-100 nm to millimeter sized features are sculpted sequentially to allow an exquisite control of surface properties. The process can be integrated with net-shaping to transfer functional patterns on three-dimensional metal parts.
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