Exploring Fast Room Temperature Oxygen Diffusion in Pr2NiO4+δ Stand-Alone Single-Crystalline Electrodes

ABSTRACTLow and high temperature tensile tests were performed on single crystals of pure Ni3Al and Ni3Al+B in order to determine the effect of B additions on the ductility and fracture behavior. Tests were carried out in air at a constant strain rate of 1.3 × 10−3 s−1. The orientations tested were [001] for which the yield stress in tension is always greater than in compression, and those for which the tension/compression asymmetry is zero ([T=C]) for each particular composition. At room temperature, the results show a positive effect of B additions on both the fracture stress and on the ductility. The ductility at 800K appears to decrease monotonically with B additions. The largest ductilities are found for [T=C] at room temperature where an improvement of about 26% (resolved strain) for an addition of 0.2 at% B was obtained. However, the most dramatic increase in ductility occurs for the [001] oriented samples at room temperature where a 55% improvement was measured over that of pure Ni3Al. Fracture surfaces show a combination of massive slip, some cleavage, and heavily dimpled areas. These observations show that B additions not only increase the ductility of polycrystalline Ni3Al, as has been previously observed by many investigators, but also that of the already-ductile single crystalline material, indicating that a “bulk effect” should be added to the grain boundary strengthening effect of B when explaining the improvement in ductility of polycrystalline Ni3Al due to B additions.

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Thermal annealing induced multiple phase in V/V2O5 alternating multilayer structure

International Journal of Modern Physics B ◽

10.1142/s0217979216502106 ◽

2016 ◽

Vol 30 (27) ◽

pp. 1650210 ◽

Cited By ~ 7

Author(s):

B. Ilahi ◽

M. Abdel-Rahman ◽

Z. Zaaboub ◽

M. F. Zia ◽

M. Alduraibi ◽

...

Keyword(s):

Thin Films ◽

Thermal Annealing ◽

Oxygen Diffusion ◽

Multilayer Structure ◽

Room Temperature ◽

Optical And Electrical Properties ◽

Film Resistance ◽

Dc Magnetron Sputtering ◽

Temperature Coefficient Of Resistance ◽

Multiple Phase

In this paper, we report on microstructural, optical and electrical properties of alternating multilayer of vanadium pentoxide (V2O5), 25 nm, and vanadium (V), 5 nm, thin films deposited at room temperature by radio frequency (RF) and DC magnetron sputtering, respectively. Raman and photoluminescence (PL) spectroscopy have been employed to investigate the effects of thermal annealing for 20, 30 and 40 min at 400[Formula: see text]C in Nitrogen (N2) atmosphere on the multiple phase formation and its impact on the film resistance and temperature coefficient of resistance (TCR). We demonstrate that the oxygen free annealing environment allows the formation of multiple phases including V2O5, V6O[Formula: see text] and VO2 through oxygen diffusion and consequent deficiency in V2O5 layer.

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Deep-blue DBR laser at room temperature from single-crystalline perovskite thin film

Optical Materials ◽

10.1016/j.optmat.2020.110130 ◽

2020 ◽

Vol 107 ◽

pp. 110130

Author(s):

Cheng Tian ◽

Shiqi Zhao ◽

Tong Guo ◽

Wanjin Xu ◽

Yanping Li ◽

...

Keyword(s):

Thin Film ◽

Room Temperature ◽

Single Crystalline ◽

Deep Blue

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Retracted Article: Monodisperse Ni3Fe single-crystalline nanospheres as a highly efficient catalyst for the complete conversion of hydrous hydrazine to hydrogen at room temperature

Journal of Materials Chemistry A ◽

10.1039/c3ta10321h ◽

2013 ◽

Vol 1 (21) ◽

pp. 6425-6432 ◽

Cited By ~ 56

Author(s):

Dong Ge Tong ◽

Dong Mei Tang ◽

Wei Chu ◽

Gui Fang Gu ◽

Ping Wu

Keyword(s):

Catalytic Activity ◽

Room Temperature ◽

Complete Conversion ◽

Efficient Catalyst ◽

Single Crystalline ◽

Highly Efficient ◽

Retracted Article

Monodisperse Ni3Fe single-crystalline nanospheres exhibited highly catalytic activity for the complete conversion of hydrous hydrazine to hydrogen at room temperature.

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