Materials Literature
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A simple method based on hydrothermal synthesis of materials to prepare gadolinium silicate has been prescribed. It is found that molar ratio of Gd(NO3)3: TEOS plays a crucial role in the formation of Gd2SiO5. The effect of calcinations, concentration of the precipitating agent and dopant atoms on composition and morp…
The natural rubber (NR) was mixed with chlorosulfonated polyethylene (CSM), due to the difference of polarity in NR and CSM made this blend incompatible and the third component was used. Epoxidzed natural rubber (ENR) was used as a third component. NR/CSM blended with the blend ratio of 50/50 was prepared by using a t…
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The etch process of the Bi0.5(Na0.82K0.18)0.5TiO3(BNKT) thin films were performed in BCl3/Ar plasma. We investigated the etching characteristics of BNKT thin films and the selectivity of BNKT to SiO2 in inductively coupled plasma (ICP) system. The best etch rate of BNKT thin films was 27.8 nm/min in BCl3/Ar (4:16 sccm…
1,2,4,5-Tetracyanobenzene (TCNB) was reacted with [Cu(dppf)(CH3CN)2](BF4) and [Cu(dchpf)(CH3CN)](BF4), dppf = 1,1'-bis(diphenylphosphino)ferrocene and dchpf = 1,1'-bis(dicyclohexylphosphino)ferrocene, to produce a heterotetranuclear metallamacrocycle 1, {[Cu(dppf)(μ-TCNB)](BF4)}2, and a heterooctanuclear complex 2, [{…
The onion-like carbon composites prepared according to different technologies were studied by means of broadband dielectric/electric spectroscopy in a wide temperature range from 300 to 450 K. The value of complex dielectric permittivity of composites strongly increases after annealing. From complex dielectric spectra…
Under the TITAN project, in order to determine the contributions of different microstructural features to strength and to deformation mode, microstructure of deformed flat tensile specimens of irradiated reduced activation F82H IEA and its joint were investigated by transmission electron microscopy (TEM), following te…
Five novel pyrazolone derivatives containing a thiophene ring, 1-phenyl-3-(2-thiophenyl)-4-(3-bromobenzal)-5-hydroxypyrazole phenylsemicarbazone (1)/1-phenyl-3-(2-thiophenyl)-4-(3-chlorobenzal)-5-hydroxypyrazole phenylsemicarbazone (2)/1-phenyl-3-(2-thiophenyl)-4-benzal-5-hydroxypyrazole phenylsemicarbazone (3)/1-phen…
The configuration, bonding, molecule orbitals and the wavelength of absorption spectra of HgX (X = O, Te, Se, and S) molecules and their doping clusters have been systematically investigated at B3LYP level with LanL2DZ basis set. The calculated results showed that Hg2O2 had different bonding, orbitals and spectra than…
BiFeO3 ceramics were prepared by using the sol-gel technique with adding excess amount of bismuth. Different concentrations of excess bismuth were used to study the evolution of crystal structure and physical properties of BiFeO3. The phase purity and crystal structure of all samples have been studied by powder X-ray…
In this work, the thermal stabilities of a series of polyethylene glycols (PEG 4000, 6000 and 10000) were investigated after compositing with different kinds of inorganic salts, such as ammonium molybdate tetrahydrate (AMT), NH4VO3, (NH4)2SO4, NH4NO3, Na2SO4, Na2MoO4. It was first observed that all the ammonium salts…
Ytterbium doped TiO2 nano-particles were prepared via Sol-Gel Technique under varying conditions to investigate the effects of Ytterbium ion doping on the Titania optical properties in MID IR range. X-ray diffraction analyses show that prepared Yb3+ doped TiO2 samples have polycrystalline structure in Anatas phase. FT…
A method is described for the preparation of functional polybutadiene (PB) with hydroxyl groups along the polymer chain. This material can be used directly or as the starting substrate for further polymerization in both academic and industrial processes. We have developed a convenient method to obtain a polymer with a…
By reevaluating the experimental study of Zhang et al. (2005), here we demonstrate that the extent of grain growth, previously proposed to be solely driven by external stress, may have been significantly overestimated. A new physical mechanism, termed as free surface assisted stress‐driven grain growth (or self‐mechan…
We have prepared CaMoO4:Tb@Fe3O4 hybrid nanoparticles by co-precipitation and polyol method. Their temperature kinetics for hyperthermia temperature ∼43 °C under different applied AC fields and the luminescence properties under UV-radiation are investigated. A strong green emission is observed due to the presence of T…
A selective catalytic reduction process is generally used to treat NO(x); however, this approach results in the leakage of ammonia and requires expensive catalysts. In light of these issues, the specific objective of this study was to develop a new treatment method for a NO(x) gas stream with a Mg-Al oxide slurry. In…
The effect of thermal cycling on multistage martensitic transformation (MMT) in aged Ti–50.8 at% Ni alloy was investigated. The specimens were solution-treated at 1273 K for 3.6 ks and then aged at 773 K for 3.6 ks in vacuum without atmosphere regulation. Upon cooling, the aged specimens clearly showed quadruple-stage…
Highly selective nanoscale etching of a low-dielectric constant (low- k ) organosilicate (SiCOH) layer using a mask pattern of chemical-vapor-deposited (CVD) amorphous carbon layer (ACL) was carried out in CF 4 /C 4 F 8 /Ar dual-frequency superimposed capacitively-coupled plasmas. The etching characteristics of the Si…
A new ionic conjugated polymer with pentafluorobenzoyl moieties, poly(2-ethynyl-N-pentafluorobenzoylpyridinium chloride) [PEPBPC], was synthesized via the non-catalyst polymerization of 2-ethynylpyridine using pentafluorobenzoyl chloride. The polymerization proceeded well to provide a high yield of polymer. The chemic…
Ferroelectric glass-ceramics of the sodium-niobate-aluminum-silicate (NaO-Nb2O5-SiO2+Al2O3) system, with various amounts of ZrO2 added, were synthesized through melt casting followed by controlled crystallization. The crystallization behavior, microstructure, and dielectric performances of the glass-ceramics were inve…