It was observed that the coercivity of CoCrPt films deposited on a polyimide tape was much lower than the coercivity deposited on a rigid glass substrate under identical conditions. X-ray diffraction showed that the desirable ~112! and ~110! texture of the NiAl/CrMn underlayers on the tape substrate was severely degraded during the deposition process. This resulted in the destruction of ~10.0! ...

Selective oxidation of the surface of an ordered alloy requires redistribution of the atomic species in the vicinity of the surface. This process can be understood in terms of the formation and movements of point defects in the compound. On the basis of ab initio density-functional calculation we found both the creation of exchange defects near the NiAl surface and segregation of Ni vacancies t...

The lineshape and intensity of SFG signals of CO adsorbed on supported Pd nanoparticles and Pd(111) are analyzed. For CO/Pd(111) nearly symmetric lorentzian lineshapes were observed. Applying two different visible wavelengths for excitation, asymmetric lineshapes observed for the CO/Pd/Al2O3/NiAl(110) system are explained by a lower resonant and a higher non-resonant SFG signal and a change in ...

The effects of Be additions on the oxidation behavior of ~-NiAl in moist air at 1000°C and borderline alumina-forming y (TiAI) + Laves Ti-Al-Cr based alloys at 800°C and 1000°C in dry and moist air were investigated. The addition of Be to ~-NiAl suppressed the formation of transient alumina, and resulted in the formation of a protective BeAl20 4 spinel phase. In dry air, the addition of Be to t...

Despite the well-known beneficial effect of reactive element dopants on improving oxidation resistance alumina-forming alloys, many open questions remain, including migration and segregation elements at oxide/alloy interface, a key zone in controlling global kinetics interface adhesion. Herein, we elucidate atomic processes governing interfacial dynamics hafnium with γ-Al2O3 θ-Al2O3, two domina...

The synthesis and characterization of M2+/Al (M2+=Ni, Mg) layered double hydroxide (LDH) intercalated polyoxometalate is presented. We have reported the growth on Ni/Mg for degradation methylene blue (MB). By considering variables such as pH dye solution, concentration, time variables, efficiency organic parameters (M2+ = Ni, LDH both composite LDH-polyoxometalate has been identified. X-Ray Dif...

Abstract The paper presents a quick method for the quantification of nickel species in spent FFC catalysts; known quantities NiO and $$\hbox{NiAl}_2\hbox{O}_{4}$$ NiAl 2 O 4 is first done matrix fresh ...

The Cover Feature shows high-performing and stable Cu/NiAlOx catalysts derived from NiAl-hydrotalcite for continuous catalytic conversion of ethanol into butanol, which is one the pivotal processes in biorefinery production renewable fuels value-added chemicals. In their Research Article, Y. Tan, W. Luo, Y.-J. Ding co-workers report that significant enhancement performance terms activity, selec...