Nonylphenol polyethoxylate coated body-center-cubic iron nanocrystals for ferrofluids with technical applications

2013 ◽  
Vol 113 (17) ◽  
pp. 17B505 ◽  
Author(s):  
D. Ortega ◽  
N. Pérez ◽  
J. L. Vilas ◽  
J. S. Garitaonandia ◽  
K. Suzuki ◽  
...  
Keyword(s):  
Body Center Cubic ◽  
Iron Nanocrystals ◽  
Body Center ◽  
Nonylphenol Polyethoxylate

Transformation from icosahedral phase to body center cubic phase in cut description

1989 ◽  
Vol 6 (10) ◽  
pp. 465-468 ◽  
Author(s):  
Li Fanghua ◽  
Pan Guangzhao ◽  
Cheng Yifan
Keyword(s):  
Icosahedral Phase ◽  
Cubic Phase ◽  
Body Center Cubic ◽  
Body Center

scholarly journals Dynamical stability of body center cubic iron at the Earth's core conditions

2010 ◽  
Vol 107 (22) ◽  
pp. 9962-9964 ◽  
Author(s):  
W. Luo ◽  
B. Johansson ◽  
O. Eriksson ◽  
S. Arapan ◽  
P. Souvatzis ◽  
...  
Keyword(s):  
Dynamical Stability ◽  
Earth’S Core ◽  
Earth's Core ◽  
Body Center Cubic ◽  
Body Center ◽  
Core Conditions

scholarly journals Clean Grain Boundary Found in C14/Body-Center-Cubic Multi-Phase Metal Hydride Alloys

Batteries ◽  
2016 ◽  
Vol 2 (3) ◽  
pp. 22 ◽  
Author(s):  
Hao-Ting Shen ◽  
Kwo-Hsiung Young ◽  
Tiejun Meng ◽  
Leonid Bendersky
Keyword(s):  
Grain Boundary ◽  
Metal Hydride ◽  
Body Center Cubic ◽  
Body Center ◽  
Metal Hydride Alloys ◽  
Multi Phase

scholarly journals Nanofabrication of Iron-Cobalt (FeCo) Alloy by Sol-gel Method

2021 ◽  
Vol 1 (1) ◽  
pp. 111-114
Author(s):  
Majid Farahmandjou ◽  
Parastoo Khalili
Keyword(s):  
Electron Microscopy ◽  
Sol Gel ◽  
Sem Analysis ◽  
The Body ◽  
X Ray Diffraction ◽  
Body Center Cubic ◽  
Transmission Electron ◽  
Structure Morphology ◽  
Bcc Structure ◽  
Body Center

Background and Introduction: Metal oxides (MOs) have been extensively used in a large range of engineering and medical applications. Methods: FeCo nanoparticles (NPs) were successfully synthesized by the solgel method in the presence of a powerful reducing agent-sodium borohydride (NaBH4). The structure, morphology, and optical properties of NPs were analyzed by X-ray diffraction (XRD), field effect scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FTIR) at room temperature. Results: The XRD spectrum showed the body center cubic (BCC) structure of the samples after heat treatment at 500 °C. The SEM analysis exhibited that the particle size of as-synthesized and annealed samples was approximately 40 nm and 22 nm, respectively. Conclusion: The TEM investigations showed the rod-shaped sample of annealed NPs. The optical studies of the FTIR analysis revealed the starching bound of Fe-Co at the frequencies of 673 cm-1, 598 cm-1, and 478 cm-1.

Preparations Effects on Amorphous/Nanocrystal Ni-Mo Alloys Structure and Properties

2011 ◽  
Vol 217-218 ◽  
pp. 21-26
Author(s):  
Ning Li ◽  
Cheng Hui Gao ◽  
Guang Ming Cheng
Keyword(s):  
Chemical Properties ◽  
Xrd Analysis ◽  
Dimensional Structure ◽  
Structure And Properties ◽  
X Ray Diffraction ◽  
Forming Mechanism ◽  
Body Center Cubic ◽  
The Face ◽  
Body Center ◽  
Binary Compounds

Ni-Mo alloys have been studied as a prospected cathode for its higher hydrogen evolution reaction properties than other binary compounds. The eletrodeposition parameters and its effects have been investigated in forming Ni-Mo alloys in the present study by measuring the structure and properties of deposits. The forming mechanism of Ni-Mo amorphous deposit is discussed from point of the elements component of view. The X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) microstructures show that the molybdenum content in the deposit is increased with the molybdate concentration increase, and the deposit structure can be parted several stages- nanocrystal, nanocrystal/amorphous, amorphous, crystalline, or the mixed configuration due to the variation of Mo atom content. The forming mechanism of the deposit of Ni-Mo alloys is attributable to the repulsive aggradations as of the molybdenum chemical properties and electronic shell structure. When the atom rate of Ni/Mo is higher than 0.35, the deposit is the face center cubic (fcc) configuration, while lower than 0.35, the deposit is the monoclinic hexagon crystalloid configuration or body center cubic (bcc) dimensional structure.

Creation of biaxial body center cubic tungsten nanorods under dynamic shadowing effect

2013 ◽  
Vol 539 ◽  
pp. 65-69 ◽  
Author(s):  
Liang Chen ◽  
Toh-Ming Lu ◽  
Gwo-Ching Wang
Keyword(s):  
Body Center Cubic ◽  
Shadowing Effect ◽  
Body Center

A Study of Crack Propagation in BCC Iron by Molecular Dynamics Method

2008 ◽  
Vol 385-387 ◽  
pp. 453-456 ◽  
Author(s):  
Yuan Gao ◽  
Cheng Lu ◽  
Guillaume Michal ◽  
A. Kiet Tieu
Keyword(s):  
Molecular Dynamics ◽  
Crack Propagation ◽  
Atomic Level ◽  
Molecular Dynamics Method ◽  
Simulation Efficiency ◽  
Body Center Cubic ◽  
Iron Crystal ◽  
Bcc Iron ◽  
Body Center ◽  
Dynamics Method

In this paper, molecular dynamics method has been employed to model mode I crack propagation in body center cubic (BCC) single iron crystal. To maximize the simulation efficiency the parallel computing was performed. Six cases with different lattice orientations have been simulated to investigate the crack propagation behaviors at atomic level. The strain distributions have been calculated to indicate the density of dislocation. It has been found that the lattice orientation significantly affects the propagation behaviors. The crack in BCC iron propagates more readily along the direction <111> on the plane {1-10}.

Direct Alpha Ta Formation on TaN by Resputtering for Low Resistive Diffusion Barriers

2008 ◽  
Vol 8 (5) ◽  
pp. 2582-2587 ◽  
Author(s):  
Jung-Chih Tsao ◽  
Chuan-Pu Liu ◽  
Ying-Lang Wang ◽  
Kei-Wei Chen
Keyword(s):  
Surface Treatment ◽  
Resistivity Measurement ◽  
Beta Phase ◽  
Alpha Phase ◽  
Phase Changes ◽  
X Ray Diffraction ◽  
Body Center Cubic ◽  
Argon Ion Bombardment ◽  
Body Center ◽  
Two Phases

The Ta/TaN bilayer exhibits the best performance in the Cu metal multilevel interconnects, because it provides good coherence between Cu and dielectric layer. In the Ta/TaN bilayer, Ta has two phases: alpha-phase of body center cubic is preferred due to its lower resistivity (15–60 μΩ-cm), whereas beta-phase of tetragonal should be avoided due to high resistive (∼150–250 μΩ-cm). However, beta Ta most commonly forms on fcc TaN. Here we provide a simple scheme to bypass this high resistive phase by resputtering TaN prior to Ta deposition. We found that, with surface treatment by argon ion bombardment for enough time, alpha Ta phase can be directly formed, which is supported both by X-ray diffraction and resistivity measurement. Depth profiles of all elements from Auger electron spectroscopy reveals that the surface treatment induces a nitrogen deficient surface layer due to different sputtering yield, which causes phase changes from fcc TaN to hcp Ta2N followed by bcc Ta(N) and provide a favorable lattice constant for Ta alpha-phase formation.

Sign in / Sign up

Export Citation Format

Share Document