Materials Literature
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New heterofullerides Cs 2 MC 60 , CsM 2 C 60 , Rb 2 MC 60 , K 2 MC 60 , and KM 2 C 60 (M = Be, Mg, Ca, Ba) have been synthesized; the temperature dependences of the magnetic susceptibilities of these compounds in the temperature range from 4.2 to 297 K have been measured. Among these heterofullerides, K 2 MgC 60 , KMg…
Single-crystal indium nanowires were grown from arrays of holes in diameter etched into a dielectric by potentiostatic electrodeposition from stagnant -based solutions. The monocrystallinity of the nanowires was confirmed by electron backscattered diffraction measurements. For given experimental conditions, indium wir…
The femtosecond laser induced void array inside Al2O3 crystals was discussed. The void array was formed spontaneously under the irradiation of a single beam of infrared femtosecond laser which was focused at a fixed point inside the Al2O3 crystal sample. It was found that the regular voids only could be fabricated nea…
Varestraint testing together with DSC and SEM-EDX analyses have been performed as\nmeans of investigating the hot cracking susceptibility of Allvac 718Plus, alloy 718 and Waspaloy. The\nsolidification sequences in Allvac 718Plus and alloy 718 were very similar to each other starting by an\ninitial solidification of th…
Nanosized Bi 4 Ti 3 O 12 (BIT) powders were prepared by a simple coprecipitation process. Differential scanning calorimetry (DSC) measurement was carried out to estimate the phase transition temperatures of the BIT powders calcined at different temperatures. The results showed a range of coexistence of the BIT and Bi…
Stable, artificial fibrous proteins that can be functionalized open new avenues in fields such as bionanomaterials design and fiber engineering. An important source of inspiration for the creation of such proteins are natural fibrous proteins such as collagen, elastin, insect silks, and fibers from phages and viruses.…
MgB2 bulk samples were prepared using high‐energy ball milling in nitrogen atmosphere followed by cold isostatic pressing and hot isostatic pressing to increase densification and grain connectivity. Higher values of critical current densities Jc at high magnetic fields could be obtained after milling than those obtain…
The aim of this paper is to demonstrate a Gibbs potential based approach for the development of the constitutive equations for a shape memory polymer where the shape retention and recovery upon heating is controlled by a glass transition process. The approach is motivated by the use of a simple spring‐dashpot type ana…
Surfactant micellar fluids, or viscoelastic surfactant fluids, have been used in the oil industry as completion and stimulation fluids. High fluid leak‐off and low thermal stability at elevated temperatures have, however, limited their application for hydraulic fracturing and frac‐packing applications. Improved therma…
This paper shows a study of the optical properties of the photosensitizer hypocrellin B and its complexes formed with the rare earth ions lanthanum, europium and terbium, in ethanol and dimethyl sulfoxide (DMSO) solutions, with the purpose of verify its potentiality for use in Photodynamic Therapy. Indeed, lanthanide…
Trace fluorescent labeling, typically less than 1%, can be a powerful aid in macromolecule crystallization. Precipitation concentrates a solute, and crystals are the most densely packed solid form. The more densely packed the fluorescing material, the brighter the emission from it; thus, fluorescence intensity of a so…
Organic and conventional wheat grain samples from a long-term field trial were tested with standardised biocrystallization method. In 1999-2006 the organic samples can be separated from the conventional samples using computerized texture analysis and standardised visual evaluation of the crystallization patterns. More…
Author: Schmitz, O. et al.; Genre: Book Chapter; Issued: 2008; Open Access; Keywords: International Conference on Research and Applications of Plasmas combined with the 4th German-Polish Conference on Plasma Diagnostics for Fusion and Applications and the 6th French-Polish Seminar on Thermal Plasma in Space and Labora…
Te ions existed as in the (BTT) film grown at under a high oxygen pressure (OP) of and contributed to the formation of the crystalline BTT phase after subsequent annealing at . However, for the BTT film grown under a low OP of (or ), ions, were converted to ions, which induced the phase transition of the BTT phase to…
Dynamic yield strength is one of the key variables in construction of the constitutive relationship for solids under shock loading. This paper reports the yield strength of LY12 aluminum alloy which was measured experimentally on the basis of the method proposed by J. R. Asay and L. C. Chhibildas, in which the test sa…
The rheological properties of colloidal suspensions depend on interactions between solid particles and medium. Within such suspensions, the particles above a certain volume fraction form a network. This structure may be broken under shear. In this study, the agglomerative silica suspension were studied using rheometry…
Surface modification of nanosized silica particles by polymer grafting is gaining attention.This can be attributed to the fact that it provides a unique opportunity to engineer the interfacial properties of these modified particles; at the same time the mechanical and thermal properties of the polymers can be improved…
Abstract : Urea-SCR, the selective catalytic reduction using urea as reducing agent, has been investigated for about 10 years in detail and today is a well established technique for deNOx of stationary diesel engines. In the case of the SCR-catalyst a non-uniform velocity and NH 3 profile will cause an inhomogeneous c…
Adhesive characteristics of blends of a room-temperature-curing epoxy and a dendritic hyperbranched polymer (HBP) were investigated. Significant improvements in both lap shear and T-peel strengths were observed as a result of blending of HBP. Dynamic mechanical analysis of the cured blend formulations indicates a two-…
This study is to investigate the effects of addition self synthesised multi-walled carbon nanotubes (MWCNTs), to the final properties of polypropylene (PP) matrix nanocomposites. The influences of melt blending parameters were evaluated, where the interrelationship between the temperatures of compounding and roller ro…