Materials Literature
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A basic bismuth(III) nitrate with the composition [Bi(6)O(4)(OH)(4)](0.5)[Bi(6)O(5)(OH)(3)](0.5)(NO(3))(5.5) formed in a slow crystal growth mode has an ordered crystal structure with the monoclinic space group P2(1) and lattice parameters a = 15.850(3), b = 14.986(3), c = 18.230(4) Å, β = 107.329(17)° and volume V =…
The structure-dynamics relationships in random copolymers of poly(trimethylene terephthalate) and poly(neopenthyl terephthalate) (PTT–PNT) have been investigated by means of X-ray scattering and dielectric loss spectroscopy experiments. The results show that the incorporation of neopenthyl terephthalate units into PTT…
The magnetic structures of ferromagnetic-film-coated carbon nanotube (CNT) probes and conventional pyramidal probes for a magnetic force microscope (MFM) were simulated using three-dimensional micromagnetic simulation. The CNT-MFM probes with a total probe diameter less than 60 nm are almost uniformly magnetized along…
The crystal structure and the ferroelectric phase transition are investigated in 4 mol % Ca-substituted BaTi 2 O 5 synthesized by a containerless method. The synchrotron radiation powder diffraction reveals that the Ca ion prefers to settle at one of two crystallographically nonequivalent Ba sites surrounded by a rath…
Carbon nanomaterials (CNMs) are promising in many potential applications for their attractive physical and chemical properties. Chemical vapor deposition technique (CVD) is used to synthesize CNMs on fixed substrate. Powdered activated carbon (PAC) was used as a successful substrate for CNMs growth in CVD reaction pro…
This study gives a generalised smectic–hexatic phase diagram calculated by the Landau mean field theory. Our calculated phase line equations are fitted to the experimental phase lines, which represent first-order transition for the liquid crystals studied here. The temperature- and concentration-dependent phase lines…
Abstract The piezoelectric polymeric sensors and actuators are widely valued because of their low density, availability to obtain complex shapes, and easy processing among other characteristics. However, there are not many useful piezoelectric polymers. Aromatic polyimides are high‐performance polymeric materials char…
We report the molecular beam epitaxy (MBE) growth of the iron-based superconductors, Ba 1- x K x Fe 2 As 2 and SmFeAs(O,F). In the growth of Ba 1- x K x Fe 2 As 2 films, the key to incorporating volatile K in films is low-temperature (≤350 °C) growth in reduced As flux. The highest T c thus far obtained is T c on ( T…
Nanotechnology mediated delivery of therapeutic agents is one of the rapidly emerging fields today that has gained significant commercial and academic attention. It is a promising approach to alleviate the drawbacks of conventional therapy and major limitations associated with drug development like poor water solubili…
Because the feature sizes of noble metal nanoparticles (NPs) are smaller than a few of nanometers, simulations including quantum effects and atomistic details are inevitable. In this work, we report a detailed electronic structure study on the plasmon resonance of isolated gold hollow nanoparticles (NPs) and NP pairs.…
The mechanism for the syntheses of inorganic framework materials based solely on polyoxometalate Keggin clusters has been examined and their electronic properties have been investigated. The assembly of the modular network compounds with the molecular formula (C 4 H 10 NO) n [W 72 M 12 O 268 X 7 ] (with the heteroatom…
In this paper we report the use of plasma-enhanced chemical vapor deposition (PECVD) for the simultaneous deposition and copolymerization of an amino acid with other organic and inorganic monomers. We investigate the fundamental effects of plasma-enhanced copolymerization on different material chemistries in stable ul…
The possibility of tuning the electronic properties of graphene by tailoring the morphology at the nanoscale or by chemical functionalization opens interesting perspectives towards the realization of devices for nanoelectronics. Indeed, the integration of the intrinsic high carrier mobilities of graphene with function…
The morphology and ontogenetic allometric trends of several taxa in the Pinnatae group of Surirella were studied using traditional morphometrics, landmark-based shape analysis, and light and electron microscopy. We investigated separately two groups of species: the first consisted of S. brebissonii Krammer & Lange-Ber…
We use density functional theory to study the properties of low index flat faces (i.e., not having steps) of lanthanum oxychloride LaOCl. We calculate the surface energies and the energies to make oxygen and chlorine vacancies on the surface by producing 1 / 2 O 2 or 1 / 2 Cl 2 in the gas phase. We find that the elect…
One-dimensional nanostructures such as ZnTe, CdTe, Bi(2)Te(3) and others have attracted much attention in recent years for their potential in thermoelectric devices among other applications. A better understanding of their mechanical properties is important for the design of devices. A combined experimental and comput…
Chiral polyoxometalates (POMs) have been a hot topic because of their potential applications in the fields of stereoselective catalysis, bio-simulation, sensing, nonlinear materials, and medicine. In view of the extensive work on chiral POMs, four parts are included in this review to give a broad overview on recent de…
Using zirconium propoxide as the precursor, a new method combining the advantages of electrospinning and sol–gel approaches is set up to facilely fabricate zirconia (ZrO2) nanofibers with controllable chemical and morphological structures in batch size on a standard electrospinning equipment. Interestingly, zirconia (…
Half-Heusler (HH) alloys constitute an important class of materials that exhibit promising potential in high-temperature thermoelectric (TE) power generation. In this work, we synthesized Zr1−x Yb x NiSn (x = 0, 0.01, 0.02, 0.04, 0.06 and 0.10) HH alloys using a time-efficient levitation melting and spark plasma sinte…
Glass fiber-reinforced polymer (GFRP) composite with neat epoxy matrix and GFRP nanocomposite with epoxy–organoclay nanocomposite matrix were prepared. Their tensile properties degradation at elevated temperatures and in alkaline as well as freeze–thaw cycling environments was studied by performing the uniaxial tensio…