Materials Literature
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Multivalued logic has always attracted the attention of digital system and logic designers. However, the high-performance and low-power CMOS process, which has been developed over the last two decades, has traditionally assisted successful circuit implementation of binary logic. Consequently, in spite of its large pot…
Different shapes of ZnO microcrystals have been achieved controllably by a capping-molecule-assisted hydrothermal process. The flowerlike, disklike, and dumbbell-like ZnO microcrystals of hexagonal phase have been obtained respectively using ammonia, citric acid (CA), and poly(vinyl alcohol) (PVA) as the capping molec…
Three hexa-peri-hexabenzocoronenes (HBCs) with branched, bulky alkyl substituents of different lengths in the periphery of the aromatic core have been synthesized to tune the self-association properties in solution. 1H NMR and photophysical measurements were used to probe the solution organization in comparison to the…
Gold nanocrystals of various shapes, which were produced in high yield in the presence of cetyltrimethylammonium bromide (CTAB), showed a range of two-dimensional self-assembly patterns upon drying from aqueous solution. The interparticle spacings were independent of the size and shape of the gold nanocrystals. Energy…
Determining whether power transformers are suffering from internal arcing or dangerous levels of partial discharge (PD) is important because failure without warning can result in damage to neighboring equipment, customer dissatisfaction, disruption to economic activity, and the imposition of regulatory fines. This pap…
Ferromagnets have been known since ancient times. Ferroelectrics were discovered 80 years ago, and both properties are important in many areas of technology and electronics. Materials displaying both ferroelectricity and ferromagnetism combine the potential applications of both parent phases, with a range of new appli…
Carbon nanotubes (CNTs) constitute a class of nanomaterials that possess characteristics suitable for a variety of possible applications. Their compatibility with aqueous environments has been made possible by the chemical functionalization of their surface, allowing for exploration of their interactions with biologic…
A brief review is given of electronic and transport properties of carbon nanotubes obtained mainly in a k · p scheme. The topics include a giant Aharonov–Bohm effect on the band gap and a Landau-level formation in magnetic fields, magnetic properties, interaction effects on the band structure, optical absorption spect…
An overview of the wide range of nanoreactors that have been constructed from synthetic and biological building blocks using both covalent and noncovalent approaches is given. Focus is on self-assembled systems, varying in size from a few nanometers to tens of micrometers. The review is divided into several sections t…
Applications of nanotechnology for treatment, diagnosis, monitoring, and control of biological systems has recently been referred to as "nanomedicine" by the National Institutes of Health. Research into the rational delivery and targeting of pharmaceutical, therapeutic, and diagnostic agents is at the forefront of pro…
Abstract The electrical conductivity and conductivity relaxation of x K 2 O–(100– x )TeO 2 glasses have been investigation in the frequency range 40 Hz to 200 kHz and temperature range 300 to 473 K. From the density and molar volume, it may be noticed that with increasing K 2 O content the density decreases while the…
This paper provides some experimental investigation on the influence of the surface roughness on the flashover performance of ceramics in vacuum. The test samples were prepared with four kinds of ceramics (99.9% Alumina) which were polished by four different SiC abrasives. The flashover performances of 20 kinds of tes…
Abstract The correlation between sizing formulation, bundle mechanical characteristics, and bundle–matrix static and dynamic interactions are investigated. Two glass‐fiber sizing formulations are considered, one containing polyvinyl acetate (PVAc) and the other polyester/PVAc, as conventionally used in sheet molding c…
The multivariate statistical method is introduced in this paper to diagnose insulation performance and identify its aging stages. Based on the lifetime model obtained by lifetime tests, a reasonable experimental condition is chosen to age several oil-paper samples for about 240 hours. Determination of partial discharg…
Radiation-induced damage during plasma processing of semiconductor materials can adversely affect device reliability. However, it has been shown that vacuum ultraviolet (VUV) radiation (8–20 eV) can beneficially deplete previously deposited charge on the surface of dielectrics by temporarily increasing their conductiv…
Abstract Summary: Pulsed‐IR laser‐induced decomposition of poly(vinyl acetate) (PVAC) differs remarkably from its conventional pyrolysis, which results in the formation of acetic acid and non‐polar carbonaceous residue. In contrast, the products in the former case are (i) vinyl acetate (low energy channel), (ii) produ…
Creep motion of the charge-density wave (CDW) and its change through optical excitation in the low-temperature plastic state of ${\mathrm{K}}_{0.3}{\mathrm{MoO}}_{3}$ is analyzed in terms of a local pinning theory. The nonlinear $I\text{\ensuremath{-}}V$ curve below the sliding threshold field can be well reproduced w…
Peter C. Junk * E-mail: peter.junk@sci.monash.edu.au a School of Chemistry, Monash University , Clayton, Vic, 3800, Australia Potassium tris(oxalato)ferrate(III) trihydrate crystallises in the monoclinic space group P21/c with a = 7.7422(10), b = 19.9168(10), c = 10.3457(10) Å, β = 107.846(10)°, V = 1518.5(3) Å3, for…
Abstract Ethylene vinyl alcohol (EVOH) copolymer is studied as a host for low concentrations, up to 1 wt%, of organically treated clay. The clay develops a high interaction level with EVOH and thus high torque levels accompany the structuring process leading to the formation of nanocomposites. Extrusion residence time…
Tetranuclear heterometallic complexes, [Tb2Zn2(Bzo)10(phen)2] (1) and [Tb2Zn2(TPA)10(phen)2] (2) ( , phen = 1,10-phenanthroline), were synthesized by the rheological phase reaction method and characterized by elemental analysis, IR and X-ray crystallography. Both complexes are tetrameric and the carboxylate ligands di…