نتایج جستجو برای: anodization technique

تعداد نتایج: 612174  

2014
Josep Ferré-Borrull Mohammad Mahbubur Rahman Josep Pallarès Lluís F Marsal

The influence of the anodization temperature and of the number of applied voltage cycles on the photonic properties of nanoporous anodic alumina-based distributed-Bragg reflectors obtained by cyclic voltage anodization is analyzed. Furthermore, the possibility of tuning the stop band central wavelength with a pore-widening treatment after anodization and its combined effect with temperature has...

2014
Azhang Hamlekhan Arman Butt Sweetu Patel Dmitry Royhman Christos Takoudis Cortino Sukotjo Judy Yuan Gregory Jursich Mathew T. Mathew William Hendrickson Amarjit Virdi Tolou Shokuhfar

The primary objective of this study was to fabricate a TiO2 nanotubular surface, which could maintain hydrophilicity over time (resist aging). In order to achieve non-aging hydrophilic surfaces, anodization and annealing conditions were optimized. This is the first study to show that anodization and annealing condition affect the stability of surface hydrophilicity. Our results indicate that ma...

2013
V. Sadasivan C. P. Richter P. F. Williams

Porous alumina templates are fabricated by anodization of Al in an acid. The characteristics of the template, such as the pore diameter, interpore separation, and the periodicity of the porous structure depend on the conditions of anodization and the acid that is used as electrolyte. The variation of pore diameter and interpore separation as a function of anodization parameters are described. T...

2012
A. Apolinário C. T. Sousa J. Ventura J. D. Costa D. C. Leitão J. M. Moreira J. B. Sousa A. M. Mendes J. P Araújo

Highly-ordered TiO2 nanotubes (NTs) have gained much importance for application in hydrogen production by water splitting (photoelectrochemical cells) and the dye-sensitized solar cells (DSCs) [1,2]. The TiO2 NTs can be synthesized using a titanium foil in fluoride containing electrolytes via electrochemical anodization method. The NTs geometry depends on different anodizing parameters (electro...

2007
Siglinda Perathoner Rosalba Passalacqua Gabriele Centi Gisela Weinberg

Titania nanostructured thin films have been prepared by anodization of titanium foils at different voltages in the 10–20 V range. They have been characterized by field emission scanning electron microscopy (FESEM), glancing angle X-ray diffraction (GAXRD), UV–vis diffuse reflectance and current–time transients during the anodization process. The observed nanostructure differs from that reported...

2015
Mukta Kulkarni Anca Mazare Patrik Schmuki Ales Iglic

Titanium (Ti) is one of the most promising biomaterial for biomedical devices due to its high corrosion resistance and specific combination of strength and biocompatibility. Titanium dioxide (TiO2) nanostructures are obtained by electrochemical anodization of Ti foils under self-organization condition; anodization parameters such as anodization time, voltage, temperature and most important elec...

2012
Mohammad Mahbubur Rahman Enric Garcia-Caurel Abel Santos Lluis F Marsal Josep Pallarès Josep Ferré-Borrull

A detailed study of the pore-widening rate of nanoporous anodic alumina layers as a function of the anodization voltage was carried out. The study focuses on samples produced under the same electrolyte and concentration but different anodization voltages within the self-ordering regime. By means of ellipsometry-based optical characterization, it is shown that in the pore-widening process, the p...

Journal: :ACS applied materials & interfaces 2013
Hee Han Sang-Joon Park Jong Shik Jang Hyun Ryu Kyung Joong Kim Sunggi Baik Woo Lee

Wet-chemical etching of the barrier oxide layer of anodic aluminum oxide (AAO) was systematically investigated by using scanning electron microscopy (SEM), secondary ion mass spectrometry (SIMS), and a newly devised experimental setup that allows accurate in situ determination of the pore opening point during chemical etching of the barrier oxide layer. We found that opening of the barrier oxid...

2014
Hiroyo Segawa Hironaga Okano Kenji Wada Satoru Inoue

Anodization techniques by alternating current (ac) are introduced in this review. By using ac anodization, laminated alumina films are fabricated. Different types of alumina films consisting of 50-200 nm layers were obtained by varying both the ac power supply and the electrolyte. The total film thickness increased with an increase in the total charge transferred. The thickness of the individua...

2016
Marco Salerno Wojciech J. Stępniowski Grzegorz Cieślak Małgorzata Norek Marta Michalska-Domańska Krzysztof Karczewski Paulina Chilimoniuk Wojciech Polkowski Paweł Józ´wik Zbigniew Bojar

Citation: Salerno M, Stępniowski WJ, Cieślak G, Norek M, MichalskaDomańska M, Karczewski K, Chilimoniuk P, Polkowski W, Jóźwik P and Bojar Z (2016) Advanced Image Analysis of the Surface Pattern Emerging in Ni3Al Intermetallic Alloys on Anodization. Front. Mater. 3:34. doi: 10.3389/fmats.2016.00034 advanced image analysis of the surface Pattern emerging in ni3al intermetallic alloys on anodization

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید