Nanoporous alumina formed by self-organized two-step anodization of Ni3Al intermetallic alloy in citric acid

2013 ◽  
Vol 264 ◽  
pp. 605-610 ◽  
Author(s):  
Wojciech J. Stępniowski ◽  
Grzegorz Cieślak ◽  
Małgorzata Norek ◽  
Krzysztof Karczewski ◽  
Marta Michalska-Domańska ◽  
...  
Keyword(s):  
Citric Acid ◽  
Intermetallic Alloy ◽  
Nanoporous Alumina ◽  
Self Organized ◽  
Ni3al Intermetallic

Quantitative fast Fourier transform based arrangement analysis of porous anodic oxide formed by self-organized anodization of FeAl intermetallic alloy

2016 ◽  
Vol 164 ◽  
pp. 176-179 ◽  
Author(s):  
Wojciech J. Stępniowski ◽  
Jinsub Choi ◽  
Hyeonseok Yoo ◽  
Marta Michalska-Domańska ◽  
Paulina Chilimoniuk ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Anodic Oxide ◽  
Intermetallic Alloy ◽  
Self Organized

scholarly journals Molecular self-assembly of nylon-12 nanorods cylindrically confined to nanoporous alumina

IUCrJ ◽  
2014 ◽  
Vol 1 (6) ◽  
pp. 439-445 ◽  
Author(s):  
Yan Cao ◽  
Hui Wu ◽  
Yuji Higaki ◽  
Hiroshi Jinnai ◽  
Atsushi Takahara
Keyword(s):  
Hydrogen Bonding ◽  
Self Assembly ◽  
Growth Direction ◽  
Two Dimensional ◽  
Nanoporous Alumina ◽  
Self Organized ◽  
Selected Area Electron Diffraction ◽  
Transmission Electron ◽  
Nylon 12 ◽  
Different Diameters

Molecular self-assembly of nylon-12 rods in self-organized nanoporous alumina cylinders with two different diameters (65 and 300 nm) is studied with transmission electron microscopy (TEM) and wide-angle X-ray diffraction (WAXD) in symmetrical reflection mode. In a rod with a 300 nm diameter, the tendency of the hydrogen-bonding direction of a γ-form crystal parallel to the long axis of the rod is not clear because of weak two-dimensional confinement. In a rod with a diameter of 65 nm, the tendency of the hydrogen-bonding direction of a γ-form crystal parallel to the long axis of the rod is more distinct because of strong two-dimensional confinement. For the first time, selected-area electron diffraction (SAED) is applied in a transmission electron microscope to a polymer nanorod in order to determine the hydrogen-bond sheet and lamellar orientations. Results of TEM–SAED and WAXD showed that the crystals within the rod possess the γ-form of nylon-12 and that thebaxis (stem axis) of the γ-form crystals is perpendicular to the long axis of the rod. These results revealed that only lamellae with 〈h0l〉 directions are able to grow inside the nanopores and the growth of lamellae with 〈hkl〉 (k≠ 0) directions is stopped owing to impingements against the cylinder walls. The dominant crystal growth direction of the 65 nm rod in stronger two-dimensional confinement is in between the [−201] and [001] directions due to the development of a hydrogen-bonded sheet restricted along the long axis of the rod.

FABRICATION OF SELF-ORGANIZED METAL NANOWIRE ARRAY USING POROUS ALUMINA TEMPLATE FOR OFF-CHIP INTERCONNECTS

2006 ◽  
Vol 05 (04n05) ◽  
pp. 453-458 ◽  
Author(s):  
S. BALAKRISHNAN ◽  
V. KRIPESH ◽  
SER CHOONG CHONG
Keyword(s):  
Silicon Wafer ◽  
Porous Alumina ◽  
Nanowire Array ◽  
Oxalic Acid Solution ◽  
Aluminum Film ◽  
Native Oxide ◽  
Alumina Template ◽  
Nanoporous Alumina ◽  
Self Organized ◽  
Nickel Nanowire

Porous anodic alumina formation on silicon substrate is an example of a nanostructured porous array that is well-suited as a template for growing metallic nanowires. Commercial silicon wafer deposited with aluminum is used as substrate. Prior to anodization, the aluminum film is cleaned with mixture of acids solution to remove its native oxide growth. Anodization of aluminum film on silicon wafer is performed in oxalic acid solution to generate uniform and self-organized nanoporous alumina film. The pores are in the range of 60 nm diameter and pore density is about 9 × 109/ cm 2. The nanoporous alumina template is filled with nickel nanowires by wet electrodeposition process. After nanowire is grown on silicon wafer, the alumina template is etched and the as grown nickel nanowire forest is patterned using laser pruning method. The crystallinity pattern of the as grown nickel naowire forest is characterized using X-ray diffraction technique.

Laser-welding behaviour of cast Ni3Al intermetallic alloy

1992 ◽  
Vol 27 (7) ◽  
pp. 1857-1868 ◽  
Author(s):  
P. A. Molian ◽  
Y. M. Yang ◽  
T. S. Srivatsan
Keyword(s):  
Laser Welding ◽  
Intermetallic Alloy ◽  
Ni3al Intermetallic

Influence of smelting on the structure and properties of an Ni3Al intermetallic alloy

2017 ◽  
Vol 47 (4) ◽  
pp. 280-286 ◽  
Author(s):  
A. A. Drozdov ◽  
O. A. Skachkov ◽  
P. O. Zhukov ◽  
T. A. Berezina
Keyword(s):  
Intermetallic Alloy ◽  
Structure And Properties ◽  
Ni3al Intermetallic

An electrochemical study of the effect of Li on the corrosion behavior of Ni3Al intermetallic alloy in molten (Li+K) carbonate

2009 ◽  
Vol 51 (8) ◽  
pp. 1619-1627 ◽  
Author(s):  
J.G. Gonzalez-Rodriguez ◽  
E. Mejia ◽  
M.A. Lucio-Garcia ◽  
V.M. Salinas-Bravo ◽  
J. Porcayo-Calderon ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Intermetallic Alloy ◽  
Electrochemical Study ◽  
Ni3al Intermetallic

The Microstructure and Mechanical Properties of Friction Welded Cast Ni3Al Intermetallic Alloy

2016 ◽  
Vol 71 (3) ◽  
pp. 775-779
Author(s):  
Ibrahim Celikyürek ◽  
Bedri Baksan ◽  
Osman Torun ◽  
Gökhan Arıcı ◽  
Akın Özcan
Keyword(s):  
Mechanical Properties ◽  
Intermetallic Alloy ◽  
Microstructure And Mechanical Properties ◽  
Ni3al Intermetallic
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