Materials Literature
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Evaluation of the dielectric strength of transmission line insulation subjected to fast-front overvoltages is of major importance for the insulation coordination of overhead lines and the connected substations. Among models proposed in literature for the prediction of the dielectric behavior of air gaps and insulators…
This work presents a systematic plasma diagnostic approach for plasma processing using radio frequency (RF) and RF/UHF (ultra high frequency) hybrid plasmas. The present work also studies the influence of frequency on the deposition of Hydrogenated silicon nitride (SiNx: H) film using N2/SiH4/NH3 discharges. Analysis…
Large scale of wind generators is one of important methods to reduce the cost of the wind power system, and has been the growing trend of wind power market in recent years. In this paper, design strategies for large-scale permanent magnet (PM) generators with surface mounted PM (SPM) and V-shaped interior PM (IPM-V) a…
The increase of the copper fill factor is an essential production goal in stator winding technology in order to increase the degree of efficiency and the power density of electrical machines. Orthocyclic winding patterns allow the highest packing density. Currently for round-wire-windings there are only systems availa…
The research focuses on the fatigue and fracture toughness of Ti-6Al-4V manufactured by Selective Laser Melting (slm) of fine powder. This manufacturing approach offers remarkable design flexibility as layers can be built up at approximately 50-100 micron layer increments. Consequently very complex shapes can be achie…
Dielectric behavior was compared experimentally between polyethylene terephthalate (PET) and poly(ethylene 2,6-naphthalate) (PEN). Due to their similar chemical structures, the two polymers exhibit many parallel dielectric properties. While the two polymers exhibit fairly similar thermally stimulated polarization and…
In this study, we performed optical visualization experiments on lightning impulse current discharge phenomena on carbon-fiber-reinforced plastic (CFRP) laminates. Lightning discharge is a phenomenon in which an extremely intense flash of light and heat is caused by a large electric current flow over a very short peri…
The paper considers 3D movable cellular automata (MCA) models of contact interactions involved in nanoindentation, sclerometry, and tribospectroscopy. The system under study is a titanium substrate with a harden coating. The substrate and coating materials are both described in the elastoplastic approximation. It is s…
Silicification is the replacement of original skeletal material accomplished through the concurrent dissolution of calcium carbonate and precipitation of silica. The processes is aided by the nucleation of silica to organic matter which surrounds the mineral crystallites within the shell. Factors that control silicifi…
The pairing and superfluid phenomena in a two-component ultracold atomic Fermi gas is an analogue of Cooper pairing and superconductivity in an electron system, in particular, the high T c superconductors. Owing to the various tunable parameters that have been made accessible experimentally in recent years, atomic Fer…
This paper presents the calculated demagnetization characteristics of different types of permanent magnet synchronous machines (PMSMs) under the influence of demagnetizing MMF contributed by the stator currents (i.e., armature reaction). The demagnetization of NdFeB magnets is quantified in terms of demagnetized magne…
Abstract Maraging steels are highly alloyed low-carbon iron-nickel martensite steels that possess an excellent combination of strength and toughness superior to that of most carbon-hardened steels. This article provides a detailed account of the formation of martensite in maraging steels. It discusses the heat treatme…
Neutron spectroscopy measurements of tritium beam transport at JET, Nocente, M., Albergante, M., Eriksson, J., Conroy, S., Ericsson, G., Farina, D., Hellesen, C., Källne, J., Popovichev, S., Tardocchi, M., Gorini, G., JET-EFDA contributors
Near-infrared dyes can be used as theranostic agents in cancer management, based on their optical imaging and localized hyperthermia capabilities. However, their clinical translatability is limited by issues such as photobleaching, short circulation times, and nonspecific biodistribution. Nanoconjugate formulations of…
An orthogonal self-assembled system consists of different structures which coexist independently. Furthermore, the characteristic properties of the respective "base systems", i.e. of the systems which contain only one of the structures, are retained in the orthogonal self-assembled system. We have identified gelled bi…
The results of studying the physical properties of thin CdTe films obtained by the thermal evaporation method have been presented. The optical constants and the band gap of the films under study have been determined (E g = 1.46 eV). It has been established based on the investigation of optical properties and the Raman…
Coffee bean (Coffea arabica) processing generates high amount of residues that are sources of environmental pollution. Therefore, an appropriate solution is needed. The objective of this study was to determine the potential of coffee pulp to produce briquettes and pellets. The study included pulp drying (using air, so…
The construction of heterojunction photocatalysts has received much attention in the field of photocatalytic H 2 production from water splitting. The surface phase junction of semiconductors is very important to the activity of heterojunction photocatalysts. In this study, an effective anatase–graphene–rutile heteroju…
The massive production of graphene by jet cavitation method with high productivity is demonstrated. Effects of the critical processing parameters on the product dispersions are studied systematically. Experimental results show that high yield of graphene flakes relies on appropriate initial concentration of graphite,…
ABSTRACT In this study, the effectiveness of free‐radical grafting as a compatibilization method applied to composites containing Kraft lignin (KL) and esterified lignin was comparatively investigated. Maleated lignin (ML) was first obtained via esterification of KL with maleic anhydride. KL and ML were respectively i…