Szczegóły publikacji
Opis bibliograficzny
Laser-induced alteration of microstructural and microscopic transport properties in porous materials: experiment, modeling and analysis / Keerti Vardhan Sharma, Olga M. O. de Araujo, João V. Nicolini, Robert STRAKA, Helen C. Ferraz, Ricardo T. Lopes, Frederico Wanderley Tavares // Materials and Design ; ISSN 0264-1275. — Tytuł poprz.: Materials in Engineering ; ISSN: 0261-3069. — 2018 — vol. 155, s. 307–316. — Bibliogr. s. 316, Abstr. — Publikacja dostępna online od: 2018-06-06
Autorzy (7)
- Sharma Keerti Vardhan
- Araujo Olga M. O. de
- Nicolini João V.
- AGHStraka Robert
- Ferraz Helen C.
- Lopes Ricardo T.
- Tavares Frederico Wanderley
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 117381 |
|---|---|
| Data dodania do BaDAP | 2018-10-26 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.matdes.2018.06.002 |
| Rok publikacji | 2018 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Materials & Design |
Abstract
Porous materials are of great importance in various industrial applications. Microscopic modifications in the pore structures of these materials can change their functional behavior. We treat Indiana limestone by lasers to modify its pore structures microscopically. Microcomputed tomography (micro-CT) of the treated samples reveal that pulsed Nd:YAG laser with energy 330 mJ increases open porosity of limestone by 15% and almost doubles the total porosity. This laser increases the limestone pore connectivity by 460%. High power CO2 laser increases the open porosity by 20% but it reduces the pore connectivity of limestone. Our findings show that pulsed laser beams induce high increase in porosity and connectivity. 3D pore scale modeling using Cascaded lattice Boltzmann method (CLBM) on a D3Q27 model shows that regions treated by pulsed Nd:YAG lasers exhibit enhanced fluid transport efficiency compared to untreated regions. The obtained results successfully demonstrate that lasers can be used to induce a well controlled heat transfer in porous materials directly enhancing their morphometric characteristics and microscopic fluid transport behavior.
