Ceramics International, Год журнала: 2023, Номер 49(24), С. 40031 - 40042
Опубликована: Сен. 28, 2023
Язык: Английский
Ceramics International, Год журнала: 2023, Номер 50(1), С. 2259 - 2270
Опубликована: Ноя. 1, 2023
Язык: Английский
Процитировано
5
Sustainability, Год журнала: 2024, Номер 16(8), С. 3169 - 3169
Опубликована: Апрель 10, 2024
The ancient building complex in Wudang Mountain, China, is known as the “Museum of Ancient Chinese Architectural Accomplishments”. However, valuable stone components are preserved open or semi-open environments and environmental factors such rain seriously threaten its sustainable conservation. In this context, a femtosecond laser processing method has been demonstrated to be able prepare hierarchical micro-nano structures on surface regulate wettability, achieving purpose paper, mechanism performance green schist, local material systematically investigated. It found that typical non-homogeneous material, exhibits significant differences absorption with different compositions. Among them, quartz, chlorite, muscovite three main compositions, they mainly characterized by cold ablation, thermal melting, expansion under irradiation (238 fs, 100 kHz, 40 μJ, 33 μm, 500–40,000 pulses), respectively, it difficult achieve uniform stable structure. Based this, we prepared grooves spacing 100–400 μm scanning laser. Through characterization morphology, elemental composition, three-dimensional structure, schist comprehensively revealed. Finally, wettability modulation result water contact angle up 147° achieved an optimal 400 μm. results research guiding significance for conservation buildings cultural relics.
Язык: Английский
Процитировано
1
Materials Today Communications, Год журнала: 2024, Номер 39, С. 108927 - 108927
Опубликована: Апрель 16, 2024
Язык: Английский
Процитировано
1
Опубликована: Янв. 1, 2024
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Язык: Английский
Процитировано
0
Chinese Journal of Lasers, Год журнала: 2024, Номер 51(20), С. 2002204 - 2002204
Опубликована: Янв. 1, 2024
Процитировано
0
Micromachines, Год журнала: 2024, Номер 15(11), С. 1390 - 1390
Опубликована: Ноя. 17, 2024
The efficient cutting of non-woven fabric shows great significance to the development textile industry. In recent years, laser technology has been widely applied in clothing industry due its high efficiency and quality. this work, a UV nanosecond pulsed with wavelength 355 nm max power 6.5 W is used cut thickness 0.15 mm. variation kerf width, surface morphology, chemical contents are investigated under different processing parameters, optimal parameter determined. experimental results demonstrate that degree crystallization composition on significantly influenced by parameters such as scanning speed (from 100 700 mm/s) frequency 20 70 kHz). 500 mm/s 30 kHz considered best for achieving abundant energy complete fabric. addition, level carbonization oxidation reaches relatively low value, width 0.214 mm, which reasonable value showing Furthermore, effect treatments morphology also studied. present possesses flat kerf, similar scissor cutting. Moreover, programmability patterns, it possible create more intricate designs This facilitates application promotion laser-cut fabrics. These can provide certain reference expected allow high-quality oxidation.
Язык: Английский
Процитировано
0
Lasers in Manufacturing and Materials Processing, Год журнала: 2024, Номер unknown
Опубликована: Дек. 28, 2024
Язык: Английский
Процитировано
0
Ceramics International, Год журнала: 2023, Номер 49(24), С. 40031 - 40042
Опубликована: Сен. 28, 2023
Язык: Английский
Процитировано
1