Materials Literature
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Poppiite, a new mineral from Gambatesa mine (Val Graveglia, Genova, Northern Italy), is the V 3+ end-member of the pumpellyite group [ [VII] (Ca 7.68 Na 0.27 K 0.03 Rb 0.02 ) Σ8.00 [VI] (V 3+ 1.26 Fe 3+ 1.02 Mg 0.78 Mn 2+ 0.59 Al 0.31 Cu 2+ 0.04 ) Σ4.00 [VI] (V 3+ 6.89 Al 1.07 Ti 0.04 ) Σ8.00 [IV] (Si 11.69 Al 0.31 )…
Having nanosize and unique electrical properties, carbon nanotubes (CNTs) attract lot of interest among scientific community all over the world. One of the recent observations is its role as nanosensors. Obviously the nanosize and high strength of CNT are most preferred parameter for technical and electromechanical fi…
Zeolites are crystalline porous aluminosilicate framework solids. Although there are many reports of how the structures change as a function of temperature, similar studies as a function of high pressure are relatively scarce. With the increasing availability of synchrotron X-ray sources and greater knowledge in the c…
Differential thermal analysis (DTA) method was applied to study the pressure–temperature phase diagrams for four members of the 4′-alkyl-4-isothiocyanato-biphenyl (nBT) homologous series (n = 9–12). These compounds exhibit a smectic E polymorphism enriched by a smectic A phase for two longest members. Measurements wer…
Chenille yarns are vulnerable to abrasion because of easy pile loss. In this study different chenille yarns were produced from sirospun and two-folded ring, 100% wool and 50% wool-50% polyester blend yarns of different fiber fineness. A yarn abrasion device was designed in order to measure the abrasion resistance of c…
Complex compound material (activated carbon fiber, saturated with salts, or metal hydrides) was developed as an efficient gas (ammonia, methane, hydrogen) adsorbent for new gas storage and transportation system application. To enhance the performance and thermodynamic efficiency of the gas storage vessels a heat pipe…
This article presents a novel method to measure the in situ thickness of porous alumina (PA) films. The PA films were prepared in oxalic acid at 30, 40, and 60 V direct current. Based on the atomic force microscope measurements, PA film porosities and refractive indexes measurements were acquired. With the observation…
Article High Strength Aluminum Alloys Reinforced by Nanosize Quasicrystalline Particles for Elevated Temperature Application was published on April 1, 2006 in the journal High Temperature Materials and Processes (volume 25, issue 1-2).
The electrical resistivities of liquid Bi–Sb alloys have been measured by DC four-probe method within Bi-rich composition through a wide temperature range. The distinct anomaly of a hump shape was observed on resistivity–temperature (ρndash;T) curves for liquid Bi–Sb alloys on heating at the relatively high temperatur…
Diamondlike carbon thin films may provide next generation medical device surfaces with unique hardness, friction, wear, corrosion, and cell interaction properties. In the present paper, laser processing, mechanical properties, and medical applications for diamondlike carbon thin films are reviewed. Diamondlike carbon…
The advent of super computers for large scale atomic simulations and the invention of proximal testing devices such as atomic force microscope, friction force microscope, surface force apparatus, nanoScratcher etc., have led to the development of micro- and nano-tribology. This paper reviews some fundamental concepts…
Poly (ethylene glycol) (PEG)-grafted nanoparticles have been described as potential intravenously injectable, long-circulating drug carriers. The in vivo behaviour of intravenous administered nanoparticles is decisively influenced by the interaction of the particles with the blood proteins. Two-dimensional electrophor…
To better understand the mechanical response of ultrananocrystalline diamond (UNCD) and its grain boundary mechanism, a numerical study is performed of the specimen size and rate effects on the mechanical properties of single crystal diamond and UNCD films under uniaxial and shear loading paths, respectively. To compa…
Methods of improving the thermal conductivity of wool fabrics have been investigated. Thermal conductivity measurement techniques, influence of synthesis parameters on the thermal conductivity of polypyrrole (PPy)-coated wool fabrics, and the relationship between electrical conductivity and thermal conductivity of PPy…
The luminescence properties of barium borate phosphate phosphors doped with trivalent terbium ions and the effects of codoping cerium and sodium ions on their emission characteristics were investigated. BaBPO 5 :Tb 3+ phosphors exhibit intense green emissions upon excitation at 230 nm. The emissions can be assigned to…
Electrical Properties of Phase Change and Channel Current Control in Ultrathin Phase-Change Channel Transistor Memory by Annealing, Yin, You, Miyachi, Akihira, Niida, Daisuke, Sone, Hayato, Hosaka, Sumio
This paper addresses the 2D and 3D micro- and nanofabrication of ElectroMagnetic MetaMaterials (EM 3 ) for the terahertz range. EM 3 refers to artifbial composite materials which consist of a collection of repeated metal elements designed to have a strong response to applied electromagnetic felds, so that near resonan…
This review traces the evolution of our understanding of the periodic patterns observed in crystals, as described by geometric crystallography and in related group theoretical methods. Succinct introductions are also presented on aperiodic fractal, geometries and quasicrystals, as well as the development of the field…
The purpose of the QUENCH experimental program at the Karlsruhe Research Center is to investigate the hydrogen source term that results from quenching an uncovered core, to examine the physicochemical behavior of overheated fuel elements under different flooding/cooling conditions, and to create a database for model d…
By X-ray structure analysis it could be shown that from the solution equilibrium of pyochelin I and II, differing in the stereochemistry at C-2" (1a and 1b), crystals of the Fe3+ complex of the steroisomer 1a are formed with a 1:1 metal-to-ligand ratio. Ligand sites are the carboxylate and the phenolate anions and the…