نتایج جستجو برای: anodization technique

تعداد نتایج: 612174  

Journal: :Nanotechnology 2013
Chih-Yi Liu Ming-Yu Lai Kun-Tong Tsai Hsuan-Hao Chang Jr-Hau He Jessie Shiue Yuh-Lin Wang

Focused ion beam lithography and a two-step anodization have been combined to fabricate a vertical fan-out platform containing an array of unique probes. Each probe comprises three anodic alumina nanochannels with a fan-out arrangement. The lithography is used to pattern an aluminum sheet with a custom-designed array of triangular 'cells' whose apexes are composed of nanoholes. The nanoholes gr...

Journal: :Nanoscale research letters 2015
Yuanjing Lin Qingfeng Lin Xue Liu Yuan Gao Jin He Wenli Wang Zhiyong Fan

Due to the broad applications of porous alumina nanostructures, research on fabrication of anodized aluminum oxide (AAO) with nanoporous structure has triggered enormous attention. While fabrication of highly ordered nanoporous AAO with tunable geometric features has been widely reported, it is known that its growth rate can be easily affected by the fluctuation of process conditions such as ac...

2015
M. M. Momeni M. G. Hosseini

To improve the photo-catalytic degradation of salicylic acid, we reported the fabrication of ordered TiO2 nanotube arrays by a simple and effective two-step anodization method and then these TiO2 nanotubes were treated in a methanol solution under UV light irradiation. The TiO2 nanotubes prepared in the two-step anodization process showed better photo-catalytic activity than those prepared in o...

2009
Mohammed K. IBRAHIM Soichiro MATSUMOTO Hiroshi OZAWA Koichi MORI Yoshiaki NAKAMURA

A new pressure measurement technique for measuring the pressure over rotating blades of industrial axial flow fan is described in this paper. The new technique is called pressure sensitive foil (PS-Foil) technique. In this technique a very thin aluminum foil is coated with pressure sensitive paint using anodization method. The resulting PS-Foil can be stick over any existing blade using a very ...

2016
Yonggang Dang Li Zhang Wen Song Bei Chang Tianxiao Han Yumei Zhang Lingzhou Zhao

Novel biomedical titanium (Ti) implants with high osteogenic ability for fast and good osseointegration under normal as well as osteoporotic conditions are urgently needed. Expanding on our previous in vitro results, we hypothesized that nanotubular, strontium-loaded (NT-Sr) structures on Ti implants would have favorable osteogenic effects and evaluated the in vivo osseointegration of these imp...

2012
Panpan Wang Weijian Dai Lei Ge Mei Yan Shenguang Ge Jinghua Yu

The Ti foil (0.1 mm thickness, 99.6 % purity, Goodfellow, England) was cleaned by using distilled water and acetone and dried off with N 2 gas. The bare Ti foil was anodized in an ethylene glycol solution containing NH 4 F (0.38 wt%) and H 2 O (1.79 wt%) and placed in a well-insulated bath for 3 h at 30 V and at 20 ℃ using a dc power supply (N5753A model, Agilent). The textured Ti surface was o...

2013
Josefin Nissa Fredrik Ejserholm Martin Bengtsson

With the aim of developing a process for surface enlargement on an electrode for measuring brain activity attempts have been made to fabricate a porous anodic alumina membrane directly on the electrode. The porous membrane was intended to be used as scaffold for deposition of an electrically conducting polymer on the electrode surface. A silicon wafer with gold electrodes was the base onto whic...

2014
Chan Lin Lixin Cao Shaowei Chen

Highly ordered TiO2 nanotube arrays on Ti substrates were prepared by an electrochemical anodization process in a mixture of glycerol and water containing 0.5 wt% NH4F and then thermally annealed from 400 C to 600 C. The sample structures were characterized by scanning electron microscopy and X-ray diffraction measurements, where the nanotube pore diameter and length were found to increase with...

Journal: :Nanotechnology 2010
Lan Zhang Yong Han

To understand the effect of substrate microstructure on the formation of TiO2 nanotubes, anodic oxidizations of commercially pure titanium subjected to surface mechanical attrition treatment (SMATed-Ti) and unSMATed-Ti in a glycol solution containing NH4F and small amounts of water were investigated. The SMATed-Ti exhibit a nanocrystallized surface layer containing a high density of grain bound...

Journal: :Nanotechnology 2008
B Marquardt L Eude M Gowtham G Cho H J Jeong M Châtelet C S Cojocaru B S Kim D Pribat

Porous alumina templates have been fabricated by applying an exponential voltage decrease at the end of the anodization process. The time constant η of the exponential voltage function has been used to control the average thickness and the thickness distribution of the barrier layer at the bottom of the pores of the alumina structure. Depending on the η value, the thickness distribution of the ...

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