Surface properties of copper based cermet materials

Voinea, Mihaela; Vladuta, Cristina; Bogatu, Cristina; Duţă, Anca

doi:10.1016/j.mseb.2008.06.020

Cited by 23 publications

(14 citation statements)

References 16 publications

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“…For example, if the surface is chemically hydrophilic, it will become more hydrophilic with added surface roughness. In general metal oxides with inferior oxidation states such as Cu 2 O have a strong interaction with water molecules resulting in higher surface wettability as compared to pure metals 39. As previously shown, the LT‐Cu process creates a textured high surface roughness covered by a hydrophilic metal oxide coating which results in a superhydrophilic behavior.…”

Section: Resultsmentioning

confidence: 99%

Hierarchical Micro/Mesoporous Copper Structure with Enhanced Antimicrobial Property via Laser Surface Texturing

Vidhya

Zareei

Elkashif

et al. 2020

Adv Materials Inter

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Co, Ni, Cu, Zn, Hg) and metalloids from group 13-16 of the periodic table (e.g., Al, Ga, As, Sn, Sb, Pb, Bi) have increasingly Copper (Cu) and its alloys have been shown to eradicate a wide range of multidrug-resistant microbes upon direct contact. In this study, a facile one-step laser texturing (LT) process is demonstrated to effectively enhance the bactericidal properties of copper surfaces via concurrent selective modification of surface topography and chemistry of laser textured copper (LT-Cu). Surface morphology and elemental composition are analyzed via field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), and Raman spectroscopy. Surface area and pore size of LT-Cu is determined by Barrett-Joyner-Halenda (BJH) and Brunauer-Emmett-Teller (BET) analysis. It reveals direct formation of mesoporous structures with higher surface oxide (Cu 2 O and CuO), which provide a highly stable superhydrophilic property to the LT-Cu surfaces. The antibacterial properties of LT-Cu are tested against pathogenic bacterial strains with different concentrations including Pseudomonas aeruginosa, and methicillinresistant Staphylococcus aureus (MRSA USA300) at 10 5 CFU mL −1 , and Escherichia coli and Staphylococcus aureus at high bacterial concentrations of 10 8 CFU mL −1 using standard contact killing tests. The analysis shows that LT-Cu needs 40, 90, 60, and 120 min to completely eradicate the respective bacterial strain. The LT-Cu causes membrane damage to the bacterial cells immediately after exposure. Furthermore, the biocompatibility of LT-Cu is investigated by in vitro immune-staining assays with mammary stromal fibroblasts and T4-2 cells.

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Section: Resultsmentioning

confidence: 99%

Hierarchical Micro/Mesoporous Copper Structure with Enhanced Antimicrobial Property via Laser Surface Texturing

Vidhya

Zareei

Elkashif

et al. 2020

Adv Materials Inter

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“…This suggests the Ar plasma treatment has changed the Cu surface to a more porous state with ion bombardments. Also, Ar plasma treatment may improve the wettability of Cu surface since the increase of wettability is due to a lack of -OH contaminants on the Cu surface [21].…”

Section: Resultsmentioning

confidence: 99%

Argon plasma treatment on Cu surface for Cu bonding in 3D integration and their characteristics

Park

Baek

Kim

et al. 2015

Applied Surface Science

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“…The type of matrix also influences the quality of the film. In this regard, a porous matrix is the optimum host for metal particle inclusion [6,26,46,91,95]. The surface morphology of cermet also plays a significant role in determining the surface absorptance and can favor multiple reflections in the surface, thus enhancing the solar radiation absorption [12].…”

Section: Incorporation Of Metal Particles In Dielectric Matrixmentioning

confidence: 99%

“…This is because the cermet structure is unique and it is one of the highest performance selective surfaces [95]. However, to the best of our knowledge, the synthesis of this type of absorber using sol-gel methods is relatively scarce.…”

Section: Incorporation Of Metal Particles In Dielectric Matrixmentioning

confidence: 99%

Developments in the synthesis of flat plate solar selective absorber materials via sol–gel methods: A review

Amri

Jiang

Pryor

et al. 2014

Renewable and Sustainable Energy Reviews

145

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Surface properties of copper based cermet materials

Cited by 23 publications

References 16 publications

Hierarchical Micro/Mesoporous Copper Structure with Enhanced Antimicrobial Property via Laser Surface Texturing

Hierarchical Micro/Mesoporous Copper Structure with Enhanced Antimicrobial Property via Laser Surface Texturing

Argon plasma treatment on Cu surface for Cu bonding in 3D integration and their characteristics

Developments in the synthesis of flat plate solar selective absorber materials via sol–gel methods: A review

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