Log in

Relevant bibliographies by topics / Aluminum – Surfaces / Journal articles

To see the other types of publications on this topic, follow the link: Aluminum – Surfaces.

Journal articles on the topic 'Aluminum – Surfaces'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Aluminum – Surfaces.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Lazarevic, Zorica, Vesna Miskovic-Stankovic, Zorica Kacarevic-Popovic, and Dragutin Drazic. "Epoxy coatings electrodeposited on aluminium and modified aluminium surfaces." Chemical Industry 56, no. 11 (2002): 468–72. http://dx.doi.org/10.2298/hemind0211468l.

Full text

Abstract:

The corrosion behaviour and thermal stability of epoxy coatings electrodeposited on modified aluminum surfaces (anodized, phosphatized and chromatized-phosphatized aluminium) were monitored during exposure to 3% NaCl solution, using electrochemical impedance spectroscopy (EIS) and thermogravimetric analysis (TGA). Better protective properties of the epoxy coatings on anodized and chromatized-phosphatized aluminum with respect to the same epoxy coatings on aluminum and phosphatized aluminum were obtained: higher values of Rp and Rct and smaller values of Cc and Cd, from EIS, and a smaller amount of absorbed water inside the coating, from TGA. On the other hand, a somewhat lower thermal stability of these coatings was obtained (smaller values of the ipdt temperature). This behavior can be explained by the less porous structure of epoxy coatings on anodized and chromatized-phosphatized aluminum, caused by a lower rate of H2 evolution and better wet ability.

APA, Harvard, Vancouver, ISO, and other styles

2

Luo, Tianhui, Peng Xu, and Chang Guo. "Controllable Construction and Corrosion Resistance Mechanism of Durable Superhydrophobic Micro-Nano Structure on Aluminum Alloy Surface." Sustainability 15, no. 13 (July 4, 2023): 10550. http://dx.doi.org/10.3390/su151310550.

Full text

Abstract:

Aluminum alloy corrosion resistance could be improved by micro-nanostructures on superhydrophobic surfaces, but inadequate mechanical stability remains a bottleneck concern in the sector. Herein, femtosecond laser processing and spray modification techniques are employed to fabricate “armor-style” micro-nanostructures on aluminum alloy surfaces. The construction of durable superhydrophobic surfaces was controllably constructed using this strategy. Applying a spray of hydrophobic nano silica onto the surface of aluminum alloys is an effective method for creating a low surface energy coating, while the femtosecond laser-processed “armor-style” micro-nano structure offers additional adhesion sites for the hydrophobic nano-silica. The findings indicated that the treated surface’s contact angle (CA) reached 152.5° while the slide angle (SA) was only 2.3°, exhibiting favorable superhydrophobic performance. Being worn 100 times with 400# sandpaper, the superhydrophobic surface retained a contact angle above 150°. Electrochemical tests demonstrated significant reductions in the self-corrosion current of superhydrophobic surfaces. Meanwhile, the impedance increased significantly, showing good thermal, mechanical, and chemical stability, enabling better sustainable use of aluminum alloys. These results will serve as a theoretical foundation for the surface protection of aluminum alloys.

APA, Harvard, Vancouver, ISO, and other styles

3

Yang, Jin, Zhaozhu Zhang, Xianghui Xu, Xuehu Men, Xiaotao Zhu, and Xiaoyan Zhou. "Superoleophobic textured aluminum surfaces." New Journal of Chemistry 35, no. 11 (2011): 2422. http://dx.doi.org/10.1039/c1nj20401g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Huang, Ying, Dilip K. Sarkar, and X. Grant Chen. "Preparation of Nanostructured Superhydrophobic Copper and Aluminum Surfaces." Advanced Materials Research 409 (November 2011): 497–501. http://dx.doi.org/10.4028/www.scientific.net/amr.409.497.

Full text

Abstract:

Preparation of nanostructured superhydrophobic surfaces requires both an optimum roughness and low surface energy. Application of a direct voltage between two copper plates immersed in a dilute ethanolic stearic acid solution transforms the surface of the anodic copper electrode to superhydrophobic due to the formation of micro-nanofibrous low surface energy flower-like copper stearate as confirmed by scanning electron microscope (SEM). Nanostructured superhydrophobic aluminum surfaces have also been prepared by electrodeposition of copper films on aluminum surfaces followed by electrochemical modification by ethanolic stearic acid. The X-ray diffraction (XRD) analyses confirmed the formation of copper films on aluminum substrates. The electrodeposited copper films are composed of microdots of copper whose density increases with the decrease of deposition potential as observed by SEM. The deposited copper microdots on aluminum substrates were electrochemically modified to low surface energy copper stearate nanofibres to obtain superhydrophobicity. The copper films deposited at potentials above-0.6 V did not exhibit superhydrophobic properties. However, the copper films deposited at potential-0.6 V and below exhibited superhydrophobic properties with water drop rolling-off those surfaces.

APA, Harvard, Vancouver, ISO, and other styles

5

Li, Jing, Guo Hua Cao, Xin Ming Zhang, Cheng Yu Xu, and Qiang Li. "Fabrication on Hydrophobicity of the Etched Aluminium Alloy Surfaces." Advanced Materials Research 924 (April 2014): 134–37. http://dx.doi.org/10.4028/www.scientific.net/amr.924.134.

Full text

Abstract:

Hydrophobic surfaces with contact angles greater than 90° and roll-off angles below 10° for water have been developed, based on low energy surfaces and rough texture on the micro-and nanometer scales. In this study, we fabricated a hydrophobic surface on a aluminum alloy substrate using the method of chemical etching without being modified by organic liquids such as surfactant-based solutions, alcohols, or alkanes. The measurement showed that the as-prepared surfaces possessed roughness on the micrometer scales by laser scanning confocal microscopy. The etched aluminum alloy surfaces had a maximum water contact angle of 120o by using a water contact angle measurement. The forming course of the aluminum alloy etched surfaces with pores was analyzed. The wettability of the etched aluminum alloy surfaces is reinforced by means of controlling the surface rough texture on the micrometer scales.

APA, Harvard, Vancouver, ISO, and other styles

6

Lagoyskaya, M. V. "Influence of abrasive materials on the quality of analytical surfaces during preparation of samples for spectral analysis." Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY), no. 3 (October 20, 2020): 112–16. http://dx.doi.org/10.21122/1683-6065-2020-3-112-116.

Full text

Abstract:

The article considers the possibility of contamination of the surface of steel samples with abrasive materials when preparing samples for determining the chemical composition on optical emission spectrometers.The standards for sample preparation methods describe in detail the methods of surface treatment, the materials used, and the requirements for the quality of the analyzed surface. The sample surface can be milled or sanded using various abrasive materials. In practice, the laboratory found that the surface of samples during sample preparation is contaminated with aluminum and calcium.In order to determine how the contamination of analytical surfaces occurs, the chemical composition of all materials used in the preparation of samples was studied, and an experiment was conducted to establish a method for preparing the sample surface that does not lead to contamination of the surface with aluminum and calcium. For the experiment, three standard samples of steel composition were selected with certified values of the mass fraction of aluminum and calcium in different ranges. The surface of each sample was processed in three ways and optical emission spectral analysis was performed on each analytical surface at five points to determine the value of the mass fraction of aluminum and calcium and to estimate the spread of the results obtained. As a result of tests it was found that by grinding the sample surface by using abrasive white corundum and abrasive paper grit P40 is the surface contamination of the analyzed sample in aluminum and calcium, therefore, when determining the mass fraction of aluminium and calcium in steel are required for surface preparation to use the method of milling.

APA, Harvard, Vancouver, ISO, and other styles

7

Kim, Jin Yong, John S. Hardy, and K. Scott Weil. "Use of aluminum in air-brazing aluminum oxide." Journal of Materials Research 19, no. 6 (June 2004): 1717–22. http://dx.doi.org/10.1557/jmr.2004.0221.

Full text

Abstract:

A commercial aluminum foil was used to braze alumina plates in air. Although the outer surface of the aluminum oxidizes in air, the majority of the aluminum underneath remains unoxidized during brazing, allowing the ceramic pieces to be joined together with adequate strength. Joint strength testing and subsequent examination of the fracture surfaces of the joints indicate that the joints are inherently ductile, even after long-term, high-temperature air exposure.

APA, Harvard, Vancouver, ISO, and other styles

8

Deng, Jian, Guanrong Zhao, Jieheng Lei, Lin Zhong, and Zeyong Lei. "Research Progress and Challenges in Laser-Controlled Cleaning of Aluminum Alloy Surfaces." Materials 15, no. 16 (August 9, 2022): 5469. http://dx.doi.org/10.3390/ma15165469.

Full text

Abstract:

Aluminum alloys have been widely utilized in automobiles, aircraft, building structures, and high-speed railways industries due to their excellent structural and mechanical properties. Surface oxide film removal prior to aluminum alloy welding and old paint removal prior to repainting aluminum alloy surfaces are critical factors in ensuring the welding quality and service life of aluminum alloy products. Because of its unique advantages, such as environmental protection and precision control, laser-controlled cleaning has great application potential as a surface cleaning technology in removing oxide films and paint layers on aluminum alloy surfaces. In this paper, the mechanism of laser cleaning of oxide films and paint layers on aluminum alloy is discussed. Furthermore, the impact of various processing parameters such as laser beam power, energy density, scanning speed, and so on is analyzed in detail. After laser cleaning, the corrosion resistance, welding performance, adhesive performance, and other properties of the aluminum alloy are optimized. This paper also discusses several real-time detection technologies for laser cleaning. A summary and the development trend are provided at the end of the paper.

APA, Harvard, Vancouver, ISO, and other styles

9

Hoque, E., J. A. DeRose, G. Kulik, P. Hoffmann, H. J. Mathieu, and B. Bhushan. "Alkylphosphonate Modified Aluminum Oxide Surfaces." Journal of Physical Chemistry B 110, no. 22 (June 2006): 10855–61. http://dx.doi.org/10.1021/jp061327a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

JIN, Jin-sheng. "SURFACE MORPHOLOGIES OF ALUMINUM FILMS ON SILICONE OIL SURFACES." Journal of Zhejiang University SCIENCE 2, no. 4 (2001): 384. http://dx.doi.org/10.1631/jzus.2001.0384.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Naeem, Aneeqa, Esham Butt, Hamza Khawaja, Irfan Nadeem, Rehan Akhter, and Anjum Tauqir. "Microsecond Laser Texturing of an Aerospace Grade Aluminum Alloy to Synthesize Superhydrophobic, Anti-Water Clogging Surfaces." Key Engineering Materials 875 (February 2021): 322–28. http://dx.doi.org/10.4028/www.scientific.net/kem.875.322.

Full text

Abstract:

Traditionally superhydrophobic surfaces are prepared by applying liquid repellant organic coatings or nano-based coatings. These superhydrophobic coatings are prone to wear and can be easily damaged by abrasion and cleaning. Recently researchers are switching interest to more efficient and promising technology of pulse laser texturing for engineering sub-micron topographies to have superhydrophobic surfaces. In this research, the micro-second Laser Pulses are used to feature sub-micron textures on titanium nitride coated aluminum and polished aluminum surfaces in order to achieve the water contact angle greater than 150°. Titanium nitride coated aluminum surface with scan line separation of 50 µm shows superior hydrophobicity having a water contact angle of 156º. These superhydrophobic aluminum surfaces have applications for anti-water clogging and anti-corrosion use.

APA, Harvard, Vancouver, ISO, and other styles

12

Huang, Hao, Jintao Niu, Jiliang Li, Qichao Lin, and Yang Qiao. "Comparison Study on Machined Surface Integrity and Corrosion Resistance of 2024 Aluminum Alloy." Journal of Physics: Conference Series 2338, no. 1 (September 1, 2022): 012053. http://dx.doi.org/10.1088/1742-6596/2338/1/012053.

Full text

Abstract:

Abstract 2024 aluminum alloy is an engineering equipment material with broad application prospects, which can be used in space flight and shipbuilding industry. However, the lack of corrosion resistance hinders its further application. The effects of milling and further shot peening processes on the surface integrity of 2024 aluminum alloy were investigated. Electrochemical polarization measurements were performed in 3.5wt% NaCl solution to characterize the corrosion resistance of milling alone surfaces and the further shot-peening process surfaces after milling. Experimental results reveal that the surface residual stress and microhardness of the shot-peened surfaces are much higher than those of the only milling surfaces owing to the severer plastic deformation induced by further shot peening process. While the shot-peened surfaces are roughened with the higher surface roughness. Under the synergic effects of three terms mentioned above, the corrosion potential of shot-peened surfaces is much positive than that of milled ones, meaning the corrosion resistance after shot peening is better. The comparison test gives a way to enhance the corrosion behavior of 2024 aluminum alloy milled surfaces.

APA, Harvard, Vancouver, ISO, and other styles

13

Seo, Youngkyun, Jung-Yeul Jung, Jihoon Chung, and Sangmin Lee. "Enhancement of Corrosion Resistance of Aluminum 7075 Surface through Oil Impregnation for Subsea Application." Applied Sciences 9, no. 18 (September 9, 2019): 3762. http://dx.doi.org/10.3390/app9183762.

Full text

Abstract:

This study investigated the corrosion resistance of oil impregnated anodic aluminum oxide (AAO) surfaces of aluminum 7075 for subsea application. Although aluminum 7075 has high strength, it is scarcely used in the subsea industry because of its corrosion issue. Some treatment of aluminum 7075 is required for subsea application. In this study not only a plate shape but also a cylindrical shape were investigated because a cylindrical shape is frequently used in the subsea industry for electronic device housing. Contact angles of bare aluminum and oil impregnated AAO surfaces of aluminum 7075 were measured after a salt spray test and a pressure test. The results showed that the contact angle of bare aluminum was considerably decreased after the salt spray test, whereas the oil impregnated AAO surface presented a relatively high contact angle after the salt spray test and the pressure test. These results showed that the corrosion resistance of aluminum 7075 could be enhanced by oil impregnation on the AAO surface, and thus can be utilized in the subsea industry.

APA, Harvard, Vancouver, ISO, and other styles

14

Conroy, C. M., J. D. Guthrie, A. J. Sharkins, B. J. Sparr, R. A. Crocombe, and R. Curbelo. "An Infrared Accessory for Studying the Emissivity of Aluminum Surfaces." Applied Spectroscopy 41, no. 4 (May 1987): 688–92. http://dx.doi.org/10.1366/0003702874448436.

Full text

Abstract:

Temperature measurement of aluminum surfaces by remote sensing of infrared radiation is difficult because of the low and varying emissivity of aluminum. The variation in emissivity may be dependent on factors like surface roughness, surface oxides, temperature, or wavelength of the measurement. In order that the factors which affect the emissivity of pure aluminum might be studied, a specialized emission accessory was built to be used in conjunction with a Fourier transform infrared spectrometer. This paper describes the design of the accessory and presents emission spectra and emissivity curves demonstrating the accessory's capabilities.

APA, Harvard, Vancouver, ISO, and other styles

15

Winkler, A., Ch Resch, and K. D. Rendulic. "Aluminum hydride desorption from hydrogen covered aluminum single crystal surfaces." Journal of Chemical Physics 95, no. 10 (November 15, 1991): 7682–88. http://dx.doi.org/10.1063/1.461342.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Kubicki, J. D., and S. E. Apitz. "Molecular cluster models of aluminum oxide and aluminum hydroxide surfaces." American Mineralogist 83, no. 9-10 (October 1, 1998): 1054–66. http://dx.doi.org/10.2138/am-1998-9-1014.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

YU, ZHIJIA, YUEFEI YU, YANFENG LI, SHANPENG SONG, SUBIN HUO, and XIUYAN HAN. "PREPARATION AND CHARACTERIZATION OF SUPER-HYDROPHOBIC SURFACES ON ALUMINUM AND STAINLESS STEEL SUBSTRATES." Surface Review and Letters 17, no. 03 (June 2010): 375–81. http://dx.doi.org/10.1142/s0218625x10014132.

Full text

Abstract:

Hierarchical alveolate structures in nano- to microscale were fabricated on both aluminum and stainless steel substrates via a chemical etching. On aluminum surfaces, sharp edged caves and plateaus were found. On stainless steel substrate, fine papillae stand on protuberances. These surfaces exhibit super-hydrophobic properties after the fluorination treatment, their water contact angles are 158° and 160°, respectively, with the contact angle hysteresis of about 5°. The roll off angle is about 5°. Ice melting behaviors on a plate of aluminum super-hydrophobic surface were compared with those on a hydrophilic one, their difference shows that the new feature of super-hydrophobic surface could be expected.

APA, Harvard, Vancouver, ISO, and other styles

18

Ludwig, Bellamarie. "Infrared Spectroscopy Studies of Aluminum Oxide and Metallic Aluminum Powders, Part II: Adsorption Reactions of Organofunctional Silanes." Powders 1, no. 2 (April 1, 2022): 75–87. http://dx.doi.org/10.3390/powders1020007.

Full text

Abstract:

A gas phase, probe molecule doser was fabricated and connected to a diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) reaction chamber to study the reactions and stability of two organosilanes with the surfaces of metallic aluminum and boehmite powders in situ. Two metallic aluminum powder surfaces were studied, including an as-received, native oxide layer surface, and a laboratory prepared, boehmite-like surface. Neat boehmite powder was also used for reference and comparison to the laboratory prepared surface. We found that the metalloxane bond (Al-O-Si) was observed in the 1100–950 cm−1 region for all surfaces, which indicates chemisorption between the adsorbate and available surface hydroxyls. We were also able to draw correlations between the loss of surface –OH and the subsequent growth of –CH for additional confirmation of adsorbate retention. Hydrothermal stability was probed through intentional exposure to water after chlorotrimethyl silane dosing, which showed adsorbate loss through fractional decreases in intensity of the –CH stretches. These results provide clear evidence of metalloxane bonds formed on aluminum powder and insight into their stability, supporting the identification of these bonds on bulk scale silane treated powders.

APA, Harvard, Vancouver, ISO, and other styles

19

Chen, Jian Jun, Zhen Ma, Xue Ting Duan, Qiong Liu, Juan Han, and Xing Fu. "Analysis on the Scattering Characteristics of Two Stray Light Removing Metal Surfaces." Advanced Materials Research 571 (September 2012): 115–19. http://dx.doi.org/10.4028/www.scientific.net/amr.571.115.

Full text

Abstract:

For the purpose of stray light suppression, black anodized and sandblasted aluminum alloy is widespread used in spaceborne cameras. Base on the relative measuring method, in the white light irradiation, measure relative backscatter intensity and BRDF of two black anodized and sandblasted sample surfaces. Contrast these surfaces scattering characteristics. Finally BRDF curves have been drawn with measurement data. In the curves, the BRDF of sandblasted aluminum surface is nearly linear relation. Anodized surface curve, it’s pulse pattern that BRDF sharply increases among the region of critical angles. It is indicate that in critical angle range, anodized aluminum surface specularity is visible and can be treated as specular reflection which harm for stray light suppression. This experiment research can provide objective reference of these two material’s scattering characteristics in specific optical system design.

APA, Harvard, Vancouver, ISO, and other styles

20

Kadlečková, Markéta, Antonín Minařík, Petr Smolka, Aleš Mráček, Erik Wrzecionko, Libor Novák, Lenka Musilová, and Radek Gajdošík. "Preparation of Textured Surfaces on Aluminum-Alloy Substrates." Materials 12, no. 1 (December 31, 2018): 109. http://dx.doi.org/10.3390/ma12010109.

Full text

Abstract:

The ways of producing porous-like textured surfaces with chemical etching on aluminum-alloy substrates were studied. The most appropriate etchants, their combination, temperature, and etching time period were explored. The influence of a specifically textured surface on adhesive joints’ strength or superhydrophobic properties was evaluated. The samples were examined with scanning electron microscopy, profilometry, atomic force microscopy, goniometry, and tensile testing. It was found that, with the multistep etching process, the substrate can be effectively modified and textured to the same morphology, regardless of the initial surface roughness. By selecting proper etchants and their sequence one can prepare new types of highly adhesive or even superhydrophobic surfaces.

APA, Harvard, Vancouver, ISO, and other styles

21

Wu, Ruo Mei, Zhao Fei Sun, Guang Hua Chao, Hai Yun Jiang, and Wan Tsang Lin. "Study on Wettability of Aluminum Alloy Superhydrophobic Surface." Advanced Materials Research 1081 (December 2014): 192–95. http://dx.doi.org/10.4028/www.scientific.net/amr.1081.192.

Full text

Abstract:

Wettability is interfacial phenomena by a solid interface changes from solid-gas interface to solid-liquid interface, and the contact angle is often used to characterize it. The super hydrophobic surfaces with contact angle over 150° have various excellent characteristics. In the paper, the wettability of aluminum alloy surfaces was studied. Based on the Wenzel and Cassie models, the relationship of wettability between roughnesses were investigated on body surface and coating surface. The results indicated that the hydrophobicity of surfaces could greatly enhance with high roughness on surface, and then coating process was analyzed, wettability of aluminum alloys were transformed from hydrophilicity to superhydrophilicity, when they were coated with organic materials with the low surface free energy, such as polypropylene (PP) or maleic anhydride grafted polypropylene (PP-g-MAH), so modified PP can enhanced the hydrophobicity of solid surface mostly.

APA, Harvard, Vancouver, ISO, and other styles

22

Mirafiori, Matteo, Marco Tancon, Stefano Bortolin, Alessandro Martucci, and Davide Del Col. "Mechanisms of dropwise condensation on aluminum coated surfaces." Journal of Physics: Conference Series 2177, no. 1 (April 1, 2022): 012046. http://dx.doi.org/10.1088/1742-6596/2177/1/012046.

Full text

Abstract:

Abstract Dropwise condensation (DWC) is a complex phase-change phenomenon involving the formation of randomly distributed droplets on the condensing surface. The promotion of DWC instead of the traditional filmwise condensation (FWC) is a promising solution to enhance the efficiency of heat exchangers by increasing the condensation heat transfer coefficient. The interaction between the condensing fluid and the surface (wettability) is important in defining the condensation mode. On metallic surfaces widely employed in heat transfer applications, the condensing process occurs in filmwise mode. Ideally, an engineered surface designed to achieve high DWC heat transfer coefficients should present low contact angle hysteresis and low thermal resistance. Among the different available techniques to modify the surface wettability, hybrid organic-inorganic sol-gel silica coatings functionalized with hydrophobic moieties (phenyl or methyl groups) have been identified as a feasible solution to promote DWC on metallic surfaces. In the present paper, different aluminum sol-gel coated surfaces have been tested during DWC of steam in saturated conditions. The realized coatings have been characterized by means of dynamic contact angles and coating thickness measurements. Condensation tests have been performed using a two-phase thermosyphon loop operating in steady-state conditions that allows visualization of the condensation process and simultaneous heat transfer measurements. Heat transfer coefficients have been measured by varying the heat flux, at 106 °C saturation temperature and with vapor velocity equal to 2.7 m s−1. A high-speed camera is used for the visualization of the DWC process.

APA, Harvard, Vancouver, ISO, and other styles

23

Huang, Zhen, Yu Feng Li, Pu Jin, Meng Shan Hu, Bo He, Nai Kui Gao, Hao Zhang, and Hai Yun Jin. "Fabrication of Aluminum Superhydrophobic Surface with Facile Chemical Etching Method." Materials Science Forum 804 (October 2014): 103–6. http://dx.doi.org/10.4028/www.scientific.net/msf.804.103.

Full text

Abstract:

Superhydrophobic surfaces have attracted much interest for its potential applications. In this study, the superhydrophobic aluminum surfaces were fabricated by method of chemical etching. Aluminum surfaces were firstly chemically etched by hydrochloric acid, and modified with stearic acid. The relationship between the etching time and the surface hydrophobicity was investigated. The contact angle and the sliding angle were tested, the results showed that with increasing etching time, the contact angle experienced a rise and then decrease, while the sliding angle dropped first and then started to climb. A maximum value of 152 degrees for the contact angle and a minimum value of 3 degrees for the sliding angle were obtained with etching time of 1 minute. The results indicated an ideal superhydrophobic property of the aluminum surfaces.

APA, Harvard, Vancouver, ISO, and other styles

24

Jans, S., P. Wurz, R. Schletti, T. Fröhlich, E. Hertzberg, and S. Fuselier. "Negative ion production by surface ionization at aluminum-nitride surfaces." Journal of Applied Physics 87, no. 5 (March 2000): 2587–92. http://dx.doi.org/10.1063/1.372223.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Baranova, L., V. Strunin, and B. Baysova. "The dependence of the surface roughness of aluminum nitride films on the processing methods when magnetron sputtering is used." Journal of Physics: Conference Series 2270, no. 1 (May 1, 2022): 012005. http://dx.doi.org/10.1088/1742-6596/2270/1/012005.

Full text

Abstract:

Abstract The paper investigates the dependence of the surface roughness of aluminum nitride films on the modes of magnetron deposition. The paper shows the difference between the surfaces of polycrystalline aluminum nitride films on ceramized glass and silicon substrates grown under the same conditions. Atomic force microscopy was used to compare the surface roughness parameters of aluminum nitride obtained at different substrate temperatures and the power dissipation in the target. The optimal conditions for forming aluminum nitride films through magnetron sputtering have been determined.

APA, Harvard, Vancouver, ISO, and other styles

26

Huggins, B. A., and Paul D. Ellis. "Aluminum-27 nuclear magnetic resonance study of aluminas and their surfaces." Journal of the American Chemical Society 114, no. 6 (March 1992): 2098–108. http://dx.doi.org/10.1021/ja00032a025.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Wu, C. I., A. Kahn, E. S. Hellman, and D. N. E. Buchanan. "Electron affinity at aluminum nitride surfaces." Applied Physics Letters 73, no. 10 (September 7, 1998): 1346–48. http://dx.doi.org/10.1063/1.122158.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Bernasek, Steven L., and Jeffrey Schwartz. "Monolayer Stabilization on Hydroxylated Aluminum Surfaces." Langmuir 14, no. 6 (March 1998): 1367–70. http://dx.doi.org/10.1021/la970710r.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Yang, Jin, Haojie Song, Haiyan Ji, and Beibei Chen. "Slippery lubricant-infused textured aluminum surfaces." Journal of Adhesion Science and Technology 28, no. 19 (July 7, 2014): 1949–57. http://dx.doi.org/10.1080/01694243.2014.933563.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Dodiuk, H., A. Buchman, S. Kenig, M. Rotel, J. Zahavi, and T. J. Reinhart. "Preadhesion Laser Treatment of Aluminum Surfaces." Journal of Adhesion 41, no. 1-4 (June 1993): 93–112. http://dx.doi.org/10.1080/00218469308026556.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Stoltze, P., J. K. Nørskov, and U. Landman. "Disordering and Melting of Aluminum Surfaces." Physical Review Letters 61, no. 4 (July 25, 1988): 440–43. http://dx.doi.org/10.1103/physrevlett.61.440.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Salou, M., S. Yamazaki, N. Nishimiya, and K. Tsutsumi. "Wettability characteristics of treated aluminum surfaces." Colloids and Surfaces A: Physicochemical and Engineering Aspects 139, no. 3 (September 1998): 299–310. http://dx.doi.org/10.1016/s0927-7757(98)00343-4.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Wang, Hui, Dan Dai, and Xuedong Wu. "Fabrication of superhydrophobic surfaces on aluminum." Applied Surface Science 254, no. 17 (June 2008): 5599–601. http://dx.doi.org/10.1016/j.apsusc.2008.03.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Liu, YC, JR Huang, CY Wu, and JR Chen. "Thermal outgassing study on aluminum surfaces." Vacuum 44, no. 5-7 (May 1993): 435–37. http://dx.doi.org/10.1016/0042-207x(93)90066-j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Koyama, Shinji, and Van Phu Nguyen. "Solid-State Diffusion Bonding of Titanium by Using Metal Salt Coated Aluminum Sheet." Key Engineering Materials 741 (June 2017): 31–35. http://dx.doi.org/10.4028/www.scientific.net/kem.741.31.

Full text

Abstract:

In this study, the effect of metal salt coating processing of aluminum surface on the bond strength of the solid-state diffusion bonded interface of titanium and aluminum has been investigated by SEM observation of the interfacial microstructures and fractured surfaces after tensile test. Aluminum surfaces were coated by boiling in 5% aqueous solution of NaOH for 90 s and 98% formic acid for 60 s. Bonding process was performed at a bonding temperature of 713 ~ 773 K under a load of 12 MPa (for a bonding time of 900 s). As a result of the metal salt coating processing, high strength joint can be achieved with lower bonding temperature compared with unmodified joints. From this study, it is found out that metal salt coating processing is effective at removing oxide film and substitution to metal salt on the aluminum bonding surface.

APA, Harvard, Vancouver, ISO, and other styles

36

Barkarmo, Sargon, Anna-Karin Östberg, Carina Birgitta Johansson, Sebastian Franco-Tabares, Petra Hammarström Johansson, Ulf Dahlgren, and Victoria Stenport. "Inflammatory cytokine release from human peripheral blood mononuclear cells exposed to polyetheretherketone and titanium-6 aluminum-4 vanadium in vitro." Journal of Biomaterials Applications 33, no. 2 (July 12, 2018): 245–58. http://dx.doi.org/10.1177/0885328218786005.

Full text

Abstract:

Objective To investigate the cytokine expression profiles of blood cells exposed to polyetheretherketone and titanium-6 aluminum-4 vanadium materials in vitro. Materials and methods Coin-shaped samples composed of titanium-6 aluminum-4 vanadium, polyetheretherketone, and blasted polyetheretherketone were manufactured. The surfaces of the coins were characterized using optical interferometry, scanning electron microscopy, and contact angle measurements. Peripheral blood mononuclear cells collected from 10 blood donors were cultured for one, three, and six days in the presence or absence of the coins, and then assayed for cytokine production. Quantification of the peripheral blood mononuclear cells attached to the coins was performed using confocal microscopy after immunofluorescence staining. Results The machined titanium-6 aluminum-4 vanadium coins had a smoother surface topography compared to the machined polyetheretherketone and blasted polyetheretherketone. The highest mean contact angle was noted for the blasted polyetheretherketone, followed by the machined polyetheretherketone and titanium-6 aluminum-4 vanadium. The peripheral blood mononuclear cells produced significantly more proinflammatory cytokines when exposed to the polyetheretherketone surface compared to the titanium-6 aluminum-4 vanadium surface, while the blasted polyetheretherketone induced the highest level of proinflammatory cytokine release from the peripheral blood mononuclear cells. Significantly more cells attached to both polyetheretherketone surfaces, as compared to the titanium-6 aluminum-4 vanadium surface. Conclusion Polyetheretherketone induces a stronger inflammatory response from peripheral blood mononuclear cells than does titanium-6 aluminum-4 vanadium. Surface topography has an impact on cytokine release from peripheral blood mononuclear cells.

APA, Harvard, Vancouver, ISO, and other styles

37

Agbe, Henry, Dilip Kumar Sarkar, and X. Grant Chen. "Tunable Superhydrophobic Aluminum Surfaces with Anti-Biofouling and Antibacterial Properties." Coatings 10, no. 10 (October 15, 2020): 982. http://dx.doi.org/10.3390/coatings10100982.

Full text

Abstract:

Surfaces in a hygiene critical environment can become potential reservoirs for transmission of pathogenic infections. Engineering surfaces with the tunable anti-biofouling and antibacterial properties could reduce infections particularly in hospitals and public transport hubs. In the present work, a facile two-step process has been deployed to fabricate a superhydrophobic and antibacterial aluminum surface by chemical etching, followed by passivation with low surface energy octyltriethoxysilane (OTES) molecules. The wettability and antibacterial properties of the OTES passivated aluminum was monotonically tuned by adding quaternary ammonium (QUATs) molecules. An anti-biofouling property of 99.9% against Staphylococcus aureus, 99% against Pseudomonas aeruginosa and 99% against E. coli bacteria, was achieved.

APA, Harvard, Vancouver, ISO, and other styles

38

SHIMIZU, Kenichi, Kenzo KOBAYASHI, G. E. THOMPSON, and G. C. WOOD. "Smoothing of Aluminum Surfaces during Barrier Anodic Oxide Growth on Aluminum." Journal of the Surface Finishing Society of Japan 42, no. 6 (1991): 645–48. http://dx.doi.org/10.4139/sfj.42.645.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Ebisawa, T., and R. Saikudo. "Formation of aluminum nitride on aluminum surfaces by ECR nitrogen plasmas." Surface and Coatings Technology 86-87 (December 1996): 622–27. http://dx.doi.org/10.1016/s0257-8972(96)02967-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Hara, M., K. Domen, T. Onishi, H. Nozoye, C. Nishihara, Y. Kaise, and H. Shindo. "Formation and desorption of aluminum hydride from hydrogen adsorbed aluminum surfaces." Surface Science Letters 242, no. 1-3 (February 1991): A56. http://dx.doi.org/10.1016/0167-2584(91)90490-i.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Hara, M., K. Domen, T. Onishi, H. Nozoye, C. Nishihara, Y. Kaise, and H. Shindo. "Formation and desorption of aluminum hydride from hydrogen adsorbed aluminum surfaces." Surface Science 242, no. 1-3 (February 1991): 459–63. http://dx.doi.org/10.1016/0039-6028(91)90309-g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Myronyuk, Oleksiy. "Determination of critical surface tension of wetting of textured water-repellent surfaces." Technology audit and production reserves 2, no. 1(70) (April 29, 2023): 10–13. http://dx.doi.org/10.15587/2706-5448.2023.277936.

Full text

Abstract:

The object of study is aluminum textured with a femtosecond laser and modified with silanes to reduce surface energy. The presence of a special texture on the surface, such as protrusions or hairs, and the inherently low surface energy of the material allow maximizing the water repellency properties. The determination of the critical wetting surface tension by the Zisman method has a pronounced wetting transition point, but the coordinates of this point cannot be accurately predicted. In this work, the Zisman method is considered as a tool for comparing the effectiveness of modifiers for femtosecond laser-textured surfaces. In this work, periodic structures were created by laser ablation on the surface of aluminum, the surface was modified to achieve the Cassie state when wetted with water, and the critical surface tension of wetting was determined by the Zisman method. As a result, it is shown that the Zisman method in combination with the data on the water contact angle values is an effective tool for characterizing the quality of surface modification of textured samples. It is shown that for textured aluminum surfaces, the most effective modifier is silane, which maintains the Cassie wetting state, with a contact angle increased from 155 to 160°. Paraffin has been shown to be a less effective modifier with an implicit wetting plateau and a transition in the range of 30 to 40 mN/m. It is shown that the textures that have acquired water repellency in the course of spontaneous hydrophobization are very unstable to the action of liquids with reduced polarity, although they have high values of the water contact angle. In practice, the creation of water-repellent coatings on aluminum is a promising substrate due to their widespread use in the aviation, automotive, and energy industries due to their high mechanical strength, lightness, and stability of properties.

APA, Harvard, Vancouver, ISO, and other styles

43

Yuvaraj, N. "Wear Characterization of Al/ B4C surface composite produced by TIG arc process." INTERNATIONAL JOURNAL OF ADVANCED PRODUCTION AND INDUSTRIAL ENGINEERING 3, no. 2 (April 15, 2018): 01–05. http://dx.doi.org/10.35121/ijapie201804221.

Full text

Abstract:

Aluminum-based surface composites were fabricated by the TIG arc process. B4C micro and nanoparticles were filled separately on the grooves of the Aluminum substrate and modified the surfaces with different TIG arc speeds. The modified composite surface was characterized by optical microscope, Scanning Electron microscope, and X-ray diffraction. The microhardness and wear properties of the composite surface were evaluated. The results of this study revealed that the newly formed nanocomposite surface enhances the hardness and wear characteristics. The wear worn-out surfaces of the composite surface were analyzed through SEM studies in order to understand the wear mechanisms

APA, Harvard, Vancouver, ISO, and other styles

44

Tao, Zhou, Masashi Yoshida, Masahiro Okumiya, Noah Utsumi, and Yoshiki Tsunekawa. "Surface Nitriding of Al-Mg Alloys Using a Rotary Barrel Tank." Key Engineering Materials 523-524 (November 2012): 1080–85. http://dx.doi.org/10.4028/www.scientific.net/kem.523-524.1080.

Full text

Abstract:

The authors developed a new nitriding process to form an aluminum nitride film on a pure aluminum surface. In this study, a rotary barrel polishing method was applied to gas nitriding in an attempt to form an aluminum nitride film on the surface of Al-Mg alloys. Nitriding was carried out at 823 K, 853 K, and 873 K for 3.6 ks to 25.2 ks. Alumina- and aluminum - 50mass% magnesium powders were used as the media that flowed in the barrel tank. An aluminum nitride film was formed on the aluminum alloy surfaces within a relatively short time. The effect of the treatment temperature on the formation and growth of the aluminum nitride was investigated. It was found that the formation and growth of the aluminum nitride film were greatly affected by differences in the Mg content in the aluminum substrate and by the treatment temperature.

APA, Harvard, Vancouver, ISO, and other styles

45

Erdoğan, Aygen A., Erol Feyzullahoğlu, Sinan Fidan, and Tamer Sinmazçelik. "Investigation of erosive wear behaviors of AA6082-T6 aluminum alloy." Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications 234, no. 3 (January 14, 2020): 520–30. http://dx.doi.org/10.1177/1464420719899686.

Full text

Abstract:

AA6082-T6 aluminum alloys are widely used in various applications in automotive and aircraft industries. They offer an attractive combination of surface properties, strength and corrosion resistance. The structural components manufactured by AA6082-T6 aluminum alloys can be exposed to impingement of solid particles throughout their service life. In this study, erosive wear behaviors of AA6082-T6 aluminum alloy were investigated. For the evaluation of erosive wear induced by solid particle impacts, a detailed study was conducted on AA6082-T6 aluminum alloy by using aluminum oxide (Al2O3) erodent particles. Two different particles were used in solid particle erosion tests, which are 60 mesh (212–300 µm) and 120 mesh (90–125 µm), respectively. Also, the aluminum alloy samples were tested under two different air pressures (1.5 bar and 3 bar). The erosive wear tests were carried out according to ASTM G76 standard at six various impact angles (15°, 30°, 45°, 60°, 75°, 90°). The surface roughness and morphology of worn samples were analyzed by using a non-contact laser profilometer. It was found that erodent particle size affected the surface erosion damage, erosion rate, crater morphology and roughness. The eroded surfaces of specimens were analyzed by SEM. The surfaces of specimens were also investigated by using EDS in SEM studies.

APA, Harvard, Vancouver, ISO, and other styles

46

Kang, Gilho, and Wonjong Choi. "A Study on the Effects of Surface Energy and Topography on the Adhesive Bonding of Aluminum Alloy." Korean Journal of Metals and Materials 59, no. 8 (August 5, 2021): 567–74. http://dx.doi.org/10.3365/kjmm.2021.59.8.567.

Full text

Abstract:

The bonding properties of adhesives are mainly affected by surface roughness, topography and chemical adsorption. In this paper, we studied the effects of surface pretreatment of Al 2024-T3 (bare) in terms of surface roughness, topography and surface free energy. Surface pre-treatment included solvent cleaning, FPL etching, PAA and CAA treatment. The surface energy and roughness of the aluminum surface were significantly increased by the anodizing treatment. Single lap shear and fatigue tests were performed to investigate bonding properties and durability. The evaluation revealed that the surface energy and surface roughness resulting from the aluminum surface treatment had a significant impact on bonding properties and durability. PAA treated surfaces had the highest bonding strength, and CAA treated surfaces had superior bonding retention performance in hot water or salt spray environments. The results of the fatigue test most clearly demonstrated how the surface pretreatment of the aluminum alloy differently affected bonding performance.

APA, Harvard, Vancouver, ISO, and other styles

47

Myronyuk, Oleksiy, Denys Baklan, Georgii S. Vasilyev, Aleksej M. Rodin, and Egidijus Vanagas. "Wetting Patterns of Liquid-Repellent Femtosecond Laser Textured Aluminum Surfaces." Coatings 12, no. 12 (November 29, 2022): 1852. http://dx.doi.org/10.3390/coatings12121852.

Full text

Abstract:

Although liquid-repellent surfaces are in demand in many applications, their use is limited by the Cassie state’s sustainability to environmental factors, such as the repellency of liquids with a surface tension lower than that of water. This phenomenon remains not fully understood, despite a well-developed theory. In the current work, wetting of femtosecond laser-textured aluminum surfaces for probe liquids with a surface tension of 72.8–21.2 mN/m was considered. The resulting patterns were an array of pillars at the micro level and fractal-like structures at the nano level. These structured surfaces were treated with alkoxysilanes and oleic acid. All textured samples exhibited a Cassie state with water, and contact angles greater than 150° were achieved with silane-treated surfaces. A decrease in the surface tension of the probe liquid led to а transition to the Wetzel state at 44–46 mN/m for alkoxysilanes and at 52 mN/m for oleic acid. A typical shape of the textured surface wetting curve is proposed. It was shown that the determined values of the surface tension of the Cassie-Wenzel transition were 10–15 mN/m lower than those predicted by the Cassie equations.

APA, Harvard, Vancouver, ISO, and other styles

48

Cai, M., S. C. Langford, J. T. Dickinson, and L. E. Levine. "Deformation of cube-textured aluminum studied using laser-induced photoelectron emission." Journal of Materials Research 22, no. 9 (September 2007): 2582–89. http://dx.doi.org/10.1557/jmr.2007.0313.

Full text

Abstract:

The evolution of the kinetic energy distribution of photoelectrons from a cube-oriented aluminum sample during tensile deformation was probed with a retarding field energy analyzer. Because of the anisotropy of the aluminum work function, the electron-energy distribution is altered as the area fractions of the major surface planes change during deformation. In cube-textured aluminum, deformation reduces the {100} area fraction and the relatively low energy electrons from these surfaces. Conversely, the {110} and {111} area fractions and the relatively high energy electrons from these surfaces both increase. These changes are quantitatively consistent with texture analysis by electron backscattered diffraction (EBSD). They reflect deformation-induced production of {111} surfaces by slip and the exposure of {110} surfaces by grain rotation. Photoelectron kinetic energy measurements supplement EBSD measurements and are readily acquired in real-time.

APA, Harvard, Vancouver, ISO, and other styles

49

Kłonica, Mariusz. "Analysis of selected surface roughness parameters the AW 6082 T6 aluminum alloy after turning process." Mechanik 91, no. 8-9 (September 10, 2018): 730–32. http://dx.doi.org/10.17814/mechanik.2018.8-9.117.

Full text

Abstract:

The paper presents selected research results concerning the surface roughness analysis of 2D and 3D after the turning process AW 6082 T6 aluminum alloy. The conical and spherical surfaces were analyzed. Samples made of aluminum alloy were made on a DMG MORI CTX450 numerically controlled lathe equipped with the Sinumerik 840D control system. The Hommel-Etamic T8000 RC-12-40 measuring device with a measuring radius of 2 μm was used to measure the selected surface roughness parameters. The Keyence VHX-5000 microscope was also used in the study to visualize the resulting surfaces.

APA, Harvard, Vancouver, ISO, and other styles

50

Ilinykh, Sergey, Anastasia Krivorigova, Nina Ilinykh, Boris Gelchinski, and Leopold Leontiev. "Modification of aluminum surfaces by supersonic plasma sputtering." MATEC Web of Conferences 329 (2020): 02027. http://dx.doi.org/10.1051/matecconf/202032902027.

Full text

Abstract:

Surface engineering allows you to change the physical and chemical properties of the surface layers of materials by modifying or applying protective coatings using various methods. Plasma technologies are widely used in various branches of engineering to produce hardening, wear-resistant, heat-resistant, corrosion-resistant, protective and decorative and other types of coatings that significantly improve the performance properties of products. In this work the results of laboratory studies of the physical and mechanical properties of Ni-B-Cr-Si coatings deposited by supersonic plasma deposition on an aluminum substrate are presented. It is shown that the use of this method of modification of metal surfaces is advisable.

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!