Materials Literature
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We demonstrate the printing of carbon nanotube (CNT) solution using the electrostatic inkjet nozzle and the field emission from the printed CNT. The CNT solution was prepared from the water-soluble single-wall CNT. An electrostatic inkjet nozzle having a needle inside a capillary was built in-house, which was able to…
Defects in the SF6medium voltage (MV) switchgear can result in failure. Therefore it is important to detect defects, such as protrusion and particle, in time and to determine their risk for a possible breakdown. For high voltage apparatus, the ultra high frequency (UHF) partial discharge (PD) detection technology has…
We report the preparation of p-type ZnO thin films on (0001) sapphire substrates by a combination of sol-gel and ion-implantation techniques. The results of the Hall-effect measurements carried out at room temperature indicate that the N-implanted ZnO:Al films annealed at 600°C have converted to p-type conduction with…
A technique for spinning continuous filaments constructed of nano-scale fibers instead of non-woven obtained by general electrospinning was described in the paper. Polyamide 6/66 copolymer solution in 88% formic acid was used as the spinning material. The relationships between the fiber microstructures, filament mecha…
The hydration of kotoite, suanite, and szaibelyite with ultimate brucitization was considered by the example of skarn deposits of endogenous magnesium borates. This process involves isomorphic substitution of hydroxyl groups for equivalent amounts of boron radicals. The degree of kotoite hydration varies from 2 to 40%…
Ultra-high-molecular-weight polyethylene (UHMWPE) is a versatile polymer employed in many fields for its good chemical–physics characteristics. In particular, it is widely utilized in biomedical fields due to its high degree of biocompatibility and its easy control on wettability of the surface. In this work, the lase…
The nonisothermal crystallization and melting behavior of an additive‐free (blank) iPP(BPP) and iPP (isotactic polypropylene) containing 0.3 wt% of N,N′,N″‐tris‐tert.butyl‐1,3,5‐benzene‐tricarboxamide (NA) was investigated by the differential scanning calorimetry (DSC). The results showed that adding NA and increasing…
Interfaces play an important role in microscale and nanoscale heat transfer processes with molecular dynamics (MD) simulations often used to study these interfacial phenomena. In this study, two models were used to simulate thermal conduction across micro contact points and the thermal contact resistance using non-equ…
Low-temperature specific heat in a dichalcogenide superconductor 2H-NbSe2 is measured in various magnetic fields. It is found that the specific heat can be described very well by a simple model concerning two components corresponding to vortex normal core and ambient superconducting region, separately. For calculating…
Purpose: The goal of this publication is to demonstrate the laboratory metal casting simulation methodology based on controlled melting and solidification experiments. The thermal characteristics of the AM50 magnesium alloy during melting and solidification cycles were determined and correlated with the test samples’…
A new phosphate CsLi0.5Al0.5PO4 with a structure related to the β-tridymite structure has been synthesized by a precipitation method. X-ray powder diffraction, electron probe microanalysis, second harmonic generation of laser radiation, and IR spectroscopy have been used for studying the compound. Differential scannin…
A large number of beta-AgVO3 nanowires with diameter of 30-60 nm, and length of 1.5-3 microm have been successfully synthesized by a simple and facile low-temperature sonochemical route. The morphologies and structures of the nanowires were characterized by X-ray powder diffraction (XRD), X-ray photoelectron spectrosc…
Metamict minerals are characterized by an amorphization of their crystal structure due to radiation damage, and they present an interesting challenge to the mineral and material scientist.The mechanisms of the crystal structure's metamictization and thermally induced recrystallization have been found not only to be of…
Abstract The phase equilibria at 340°C of the Al – Ni – Zn system were investigated by combining the diffusion couple technique with the equilibrated alloys method. The samples were examined by means of optical microscopy, X-ray diffraction, scanning electron microscopy, and electron probe microanalysis. Two ternary c…
Design technologies for integrated systems beyond the current CMOS era will present unprecedented advantages such as very high device densities and challenges such as soaring power dissipation issues. Most of the research effort in the emerging area of nanoelectronics has revolved around creating novel devices to repl…
Six new poly(amide-imide)s were synthesized by the polycondensation reaction of 1,3-bis[4,4'-bis(trimellityimido) phenyl]-2-propenone (6) with 3,3'-diamino diphenyl sulfone (7a), 4,4'-diamino diphenyl sulfone (7b), 4,4'-diamino diphenyl ether (7c), 1,5-diamino naphth…
Highly-reliable Cu interconnects with Ru/Ti barrier metal have been developed, in which Ti is diffused into the Ru-layer to establish a Cu-diffusion barrier. The PVD-Ru/Ti barrier metal with preferable crystal-orientation to Cu texture achieves the low line resistance. The Ti-doping in the Cu grain boundary just under…
Static tearing is one of the most common types of failure in textile fabrics and determines the durability of an article. The tear resistance is the strength parameter, which characterizes the textile product with respect to its resistance to outer mechanical forces. In the presented work, we describe in detail the pr…
Overviewed are general approaches to mathematical modeling of SHS compaction/extrusion. Presented are some examples of successful implementation of modeling predictions in technological practice.
Abstract This paper briefly reviews work by the author identifying and describing in-reactor deformation mechanisms of materials and structures used in nuclear reactors, in particular, Zircaloy-2, Zircaloy-4, and Zr-2.5Nb, and the CANDU fuel channel (comprising Zr alloy pressure tubes, calandria tubes, and spacers). T…