Materials Literature
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The coercivity in soft and hard magnetic materials has different origin. The high coercivity of barium ferrite, SmCo 5 , Sm 2 Co 17 or Nd 2 Fe 14 B is due to high magnetocrystalline anisotropy, and the processing aims very small grain size (nanocrystalline). In the case of soft magnetic materials, the coercivity has o…
The hardness, and corrosion behaviour of ferromanganese modified Cu-Al alloys in selected industrial and biological fluids has been investigated. Cu-Al alloys containing approximately 12wt% Al were produced by casting with varied lean additions of ferromanganese ranging from 0.1 – 0.4 wt% of the charge. The alloys wer…
The VO2 (B) was synthesized via a simple solvothermal route at 160oC in ethanol. The initial discharge capacity of VO2 (B) anode, in saturated aqueous solution of LiNO3, was 177 mAh g-1 at a current rate of 50 mA g-1. After 50 cycles capacity fade was 4%, but from 20th-50th cycle no capacity drop was observed. The VO2…
Good ambipolar charge-transport characteristics have been revealed for the halogenated anthanthrone crystals by DFT and MD calculations.
We investigate theoretically how ferromagnetic resonance (FMR) in a multiferroic heterostructure provides quantitative information on multiferroic coupling. In particular, we analyze the asymmetry of the angular dependence of FMR on the direction of resonance magnetic fields as experimentally reported for ${\mathrm{Co…
The development of dry self-lubricating materials is directly linked to the rising requirements of performance. Iron and steel are the most used metals around the world and molybdenum disulfide (MoS 2 ) one of the most used solid lubricant. Therefore it is expected that one might try to develop self-lubricating steels…
The presence of BaCl 2 nanocrystals and the crystallographic phase that they adopt controls the optical behavior of fluorochlorozirconate glass‐ceramics. We have used in situ X‐ray diffraction heating experiments and ex situ transmission electron microscopy to follow the BaCl 2 nanocrystal nucleation and growth proces…
Titanium and its alloys are largely used for many industrial applications due to their high mechanical and corrosion resistance and low specific mass. Ti-6Al-4V alloy is the most used in aerospace industry and it is applied for the manufacturing of aircraft blades and steam turbines. This alloy has high affinity with…
The influence of three preparation methods on the properties and reaction performances of a titania-supported Mn–Cr bimetallic nanocatalyst for high-temperature water–gas shift reaction has been studied. Impregnation, co-precipitation and thermal decomposition of the [Mn(H 2 O) 6 ] 3 [Cr(NCS) 6 ] 2 ·H 2 O/TiO 2 precur…
Oriental Journal of Chemistry is a peer reviewed quarterly research journal of pure and applied chemistry. It publishes standard research papers in almost all thrust areas of current chemistry of academic and commercial importance. It provides a platform for rapid publication of quality research papers, reviews and ch…
Zn1 xNixO thin films were prepared on glass substrate by sol-gel dip coating method. The concentration of Ni in the films varies as x=0.02,0.04,0.06,0.08 and 0.10.To understand about the influence of annealing temperature on the structural and optical properties, the Zn0:94Ni0:06O thin films are annealed at three diff…
Zn1 xCuxO thin films are prepared from inexpensive sol-gel dip coating technique using PVA as a polymer precursor. The concentration on the films x varies from 0.02 to 1 insteps of 0.02. The effect of doping concentration and annealing temperature on the structural and optical properties are thoroughly studied. It has…
In the scope of this study, acesulfame ace, acs -nicotinamide na mixed ligand complexes of Mg II , Ca II , Sr II and Ba II were synthesized for the first time. Possible formulas for complexes were determined as [Mg H2O 4 na 2] acs 2, [Ca H2O 6 na 2] acs 2, [Sr H2O 7 na 2] acs 2, [Ba H2O 7 na 2] acs 2 . It was observed…
Solid-state reactions were used to synthesize pure and doped barium titanate powder. Barium titanate formation with tetragonal perovskite structure was detected by X-ray diffraction and occurred at a temperature above 700°C for pure powder and 500°C for doped powder. However, quite crystalline samples were observed on…
ABSTRACT The synthesis of new series of PPH (poly(phosphorhydrazone)) dendrimers with amino‐PEG phosphonates or the corresponding amino‐PEG phosphonic acids as terminal groups is presented, from generations 1–3. The size of PEG‐terminated dendrimers is experimentally measured by diffusional NMR, and by means of dynami…
Superparamagnetic maghemite nanoparticles were prepared by chemical co-precipitation, followed by a temperate oxidation stage, and investigated using FE-SEM, XRD, TGA, VSM, and M<TEX>$\ddot{o}$</TEX>ssbauer spectroscopy. Through SEM image and XRD analysis, its average particle size was found to be 13.9 nm. While VSM m…
Thin metal films can be used to catalyze the growth of nanomaterials in place of the bulk metal, while greatly reducing the amount of material used. A big drawback of copper thin films (0.5-1.5 μm thick) is that, under high temperature/vacuum synthesis, the mass loss of films severely reduces the process time due to d…
We report improvement of hole injection efficiency of a graphene anode by tuning its work function (WF) via surface fluorination. We used chemical vapor deposition to synthesize high-quality graphene sheets and then treated them with CHF3 plasma to induce fluorination. We used x-ray photoelectron spectroscopy to exami…
The aim of this study was to investigate the dimensional stability, mechanical and biological performance and thermal degradation of wood–plastic composites made from high-density polyethylene and recycled wood treated with chromated copper arsenate (CCA), a commonly used wood preservative chemical. Virgin pine wood s…
Semiconductor–metal hybrid nanostructures (HNs) are promising materials for photovoltaics and photocatalysis because of their efficient charge separation in the excited state. However, analysis of their carrier dynamics has been limited to only a handful of HNs, such as CdSe–Au and CdS–Au. Herein, we synthesized and c…