Povzetek

This work investigates the influence of the direct laser texturing at high fluences (DLT-HF) on surface mor - phology, chemistry, and wettability. We use a Nd:YAG laser (gamma= 1064 nm) with pulse duration of 95 ns to process stain- less steel surface. The surface morphology and chemistry after the texturing is examined by using scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), and electron backscatter diffraction (EBSD), while the surface wettability is evaluated by measuring the static contact angle. Immediately after the texturing, the surface is superhydrophilic in a saturated Wenzel regime. However, this state is not stable and the superhydrophilic-to-superhy - drophobic transition happens if the sample is kept in atmos- pheric air for 30 days. After this period, the laser-textured stainless steel surface expresses lotus-leaf-like behavior. By using a high-speed camera at 10,000 fps, we measured that the water droplet completely rebound from this superhydro- phobic surface after the contact time of 12 ms.

Ključne besede

surface engineering;laser microstructuring;surface functionalization;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 535(045)
COBISS: 15750427 Povezava se bo odprla v novem oknu
ISSN: 0947-8396
Št. ogledov: 2321
Št. prenosov: 518
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: inženiring površin;lasersko mikrostrukturiranje;funkcionalizacija površin;
Vrsta dela (COBISS): Delo ni kategorizirano
Konec prepovedi (OpenAIRE): 2018-11-13
Strani: str. 1-8
Zvezek: ǂVol. ǂ123
Čas izdaje: Nov. 2017
DOI: 10.1007/s00339-017-1392-5
ID: 10914917
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