Materials Literature
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The influence of the hydrodynamic effects of fluid flow on the hydrothermal deposition of 〈001〉 oriented epitaxial Pb(Zr 0.7 Ti 0.3 )O 3 (PZT) thin films onto single-crystal SrTiO 3 (100) substrates was investigated. The films were grown at 150 °C from lead acetate, zirconyl chloride, and titanium dioxide precursors a…
Thermoresponsive, pH-sensitive fibrous structures and gels are formed in aqueous mixtures of the amino acid lysine with oppositely charged sodium alkyl sulfate surfactants. The formation of these assemblies depends on the chain length of the surfactant, which is varied between 8 and 16, the chirality and degree of pro…
Experiments using nickel magnetostrictive oscillators as transducers that generate acoustic standing waves in a bubble column were conducted in this study. The acoustic frequencies employed are 16 and 20 kHz with power up to 400 W. The column is operated at a constant room temperature, with the heat generated from aco…
Three new homo- and heterometallic hexanuclear complexes [Mn(2)M(II)(4)O(2)(PhCOO)(10)(DMF)(4)] (with M = Mn (1), Co (2) or Ni (3) and DMF = dimethylformamide) have been synthesized by redox generation of benzoate ligands from benzaldehyde in a one-pot reaction. All of the compounds are isostructural and crystallize i…
X-ray diffraction and Vis-absorption spectroscopy with linearly polarized light are used to determine the orientation of rhodamine 6G (R6G) dye in the interlayer space of supported films of Laponite B (Lap) clay with different dye loadings. XRD profiles suggest that the d 001 interlayer space increases with the relati…
Trivalent rare earth metal borohydride complexes Ln(BH 4 ) 3 (THF) 3 (Ln = La, Nd, Sm) initiate the ring-opening polymerization of ε-caprolactone (ε-CL) to give, in quantitative yields and in a few minutes, α,ω-dihydroxytelechelic poly(ε-caprolactone) displaying a relatively narrow molar mass distribution (≤1.3). The…
We describe for the first time the full 3D atomic structure of room-temperature α-La 2 Mo 2 O 9 . The material, despite its simple chemical formula, has a remarkable 312 crystallographically unique atoms and is thus one of the most complex oxide structures reported to date. Despite this complexity, the structural resu…
Straightforward synthetic methodologies are reported for the functionalization of oligothiophenes with hydrogen-bonding motifs. Codeposition from a solution of symmetric melamine-terminated electron-donor oligomers with a complementary barbiturate-labeled electron-acceptor fullerene resulted in homogeneous films. Inco…
We used the combination of preparative electrophoresis and immunological detection to isolate two new proteins from the shell calcitic prisms of Pinna nobilis, the Mediterranean fan mussel. The amino acid composition of these proteins was determined. Both proteins are soluble, intracrystalline, and acidic. The 38-kDa…
We report on the effect of Ni substitution at the Co site on the physical properties of NaxCoO2 system by investigating the series NaxCo1-yNiyO2 (x=0.75, 0
A multi-band effective-mass Hamiltonian is derived for lattice-matched semiconductor nanostructures in a slowly varying external magnetic field. The theory is derived from the first-principles magnetic-field coupling Hamiltonian of Pickard and Mauri, which is applicable to nonlocal norm-conserving pseudopotentials in…
Premelting is the localized loss of crystalline order at surfaces and defects at temperatures below the bulk melting transition. It can be thought of as the nucleation of the melting process. Premelting has been observed at the surfaces of crystals but not within. We report observations of premelting at grain boundari…
Abstract Magnetocrystalline anisotropy and twinned microstructure are at the origin of the appreciable magnetic-field-induced strains found in some ferromagnetic thermoelastic martensites. The change of magnetization across the twinning plane leads to a force on the twinning dislocations when a magnetic field is appli…
The present paper deals with the nano-indentation of SiC-micro and Si3N4/SiCmicro/ nano ceramic materials. The investigated SiC-micro and Si3N4/SiC-micro/nano ceramics were prepared by liquid phase sintering. Liquid phase was formed from different sintering additives (Y2O3, Yb2O3, Sm2O3). In the case of Si3N4/SiC-micr…
BaTiO<sub>3</sub> thin films are commonly used as a pyroelecrtic sensor because this material has a good dielectric, ferroelectric and piezoelectric properties. This paper reports the pyroelectric sensor performance of BaTiO<sub>3</sub>/SiO<sub>2</sub> nanocomposite thin films. The BaTiO<sub>3</sub> nanoparticles were…
Blends of ethylene acrylic elastomer (AEM) and thermotropic liquid crystalline polymer (TLCP) have been prepared by melt mixing technique. Processing studies indicated a decrease in the viscosity of the blends with the addition of liquid crystalline polymer (LCP). At lower level of LCP the tensile strength and tear st…
Anisotropy of the nonlinear magnetoelectric effect in a single-crystal, single-domain sample of the β′ metastable ferroelectric paramagnetic phase of terbium molybdate Tb 2 (MoO 4 ) 3 was studied experimentally in dc magnetic fields of up to 6 T at temperatures of 4.2 and 1.8 K. It was shown that the existing models o…
In the literature review most important results of studies on biodegradability of aliphatic polycarbonates and copolymers of cyclic carbonates (ethylene carbonate or trimethylene carbonate) with heterocyclic monomers have been presented. A new idea about mechanism of poly(ethylene carbonate) degradation in vivo in the…
Potassium niobate (KNbO 3 ) single crystals were grown by a top-seeded solution growth (TSSG) method. At first, the electric field was applied along [001]c (cubic notification system) direction of KNbO 3 crystals to induce the engineered domain configurations into KNbO 3 crystals. Prior to domain engineering, the piez…
Abstract 6‐Phenyl‐2,2′‐bipyridine linked pyrene and anthracene were synthesized and their photophysical properties were measured in different solvents with different polarity. 4‐Pyren‐1″‐yl‐6‐phenyl‐2,2′‐bipyridine (Ppbpy) showed significant solvent‐dependent properities while 4‐anthracen‐yl‐9″‐yl‐6‐phenyl‐2,2′‐bipyri…