Materials Literature
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Tendon-based instruments are widely used in both robotic and manual minimally invasive surgical procedures. Direct measurement of the interaction forces at the tip of such instruments is difficult. As a result, methods for estimation of these forces are of substantial interest. In this paper, modeling of the input-out…
In the present study, the effect of deviations in the process has been determined during the process of the extraction processing of spent nuclear fuel (SNF) VVER-440 on RT-1 plant on the purification of uranium from 99 Tc, 125 Sb, 106 Ru, 137 Cs, 228 Th, etc. The uranium decontamination factors during purification fr…
Dielectric polymer composites with high thermal conductivity and high electric breakdown strength are needed for high voltage devices. Epoxy resins is an excellent electrically insulating material, but low thermal conductivity limits its applications. This work aims to effectively enhance the thermal conductivity and…
The local electronic structure of copper ions in a copper metaborate CuB 2 O 4 crystal is studied on the ESRF synchrotron using X-ray absorption polarization-dependent spectroscopy. The X-ray natural circular dichroism near the K absorption edge of copper is measured in the direction that is perpendicular to crystal a…
To predict the heat transfer behavior of A380 alloy in a shot sleeve, a numerical approach (inverse method) is used and validated by high pressure die casting (HPDC) experiment under non-shooting condition. The maximum difference between the measured and calculated temperature profiles is smaller than 3 °C, which sugg…
The decomposition of supersaturated solid solution in the Cu–0.06 wt% Zr alloy has been investigated. Upon aging of the initially quenched alloy the homogeneous precipitation of particles is dominating. The decomposition begins from the precipitation of a metastable copper–zirconium phase, the particles of which have…
Thermal conduction of the Frenkel-Kontorova (FK) lattices with interfacial coupling is investigated numerically. The results indicate that: (i) For appropriate lattice periods, as the system is symmetric, a bidirectional negative differential thermal resistance (NDTR) phenomenon will appear. If the system is asymmetri…
Dielectric spectroscopy measurements of Polycaprolactone over a frequency range of 12 mHz – 2.6 MHz were conducted for temperatures ranging from −160 °C to 40 °C. Relative permittivity, dissipation factor, ac conductivity, and modulus curves are plotted and discussed. Four relaxations: γ (− 150 °C to −140 °C; 12 mHz t…
For aqueous solutions with freezable bound water, vitrification and recrystallization are mingled, which brings difficulty to application and misleads the interpretation of relevant experiments. Here, we report a quantification scheme for the freezable bound water based on the water-content dependence of glass transit…
The polytypic structures of vaterite, CaCO 3 , described in recent literature, have been reinterpreted in terms of the order-disorder (OD) theory, which allows us to explain and systematize all the observed and predicted polytypes of the mineral in a unified fashion. In terms of this theory, the structure consists of…
In this paper, the predictions of different beam theories for the behavior of a shape memory polymer (SMP) beam in different steps of a thermomechanical cycle are compared. Employing the equilibrium equations, the governing equations of the deflection of a SMP beam in the different steps of a thermomechanical cycle, f…
Modern consumers of textiles are conscious about sustainability of the garments they are wearing. Drying process is an energy-intensive process that has an impact on sustainability. There is no specific standard test method available to measure the dry ability of a fabric. Some of the test methods cited in the literat…
Hybrid composites (HCs) made up of gallium oxide (GaO) and graphene oxide (GO) were investigated with the intent of enhancing a photocatalytic reaction under ultraviolet (UV) radiation. The material properties of both GaO and GO were preserved, even after the formation of the HCs. The incorporation of the GO into the…
Transparent aluminum oxynitride (AlON) ceramics have been prepared through a method based on direct reaction sintering of alumina and aluminum nitride powders using MgO and Y 2 O 3 as co-additives. The sintering additives could cause the formation of liquid phase during sintering, which would greatly promote the densi…
A series of novel organosoluble polyamides (PAs) bearing different functional groups such as flexible ether, substituted imidazole, and xanthene rings and electron-withdrawing CF3 groups were synthesized from diamines and various dicarboxylic acids. The structures of diamines and PAs were fully characterized by elemen…
We systematically examined the effects of number‐of‐layer, pressure, and temperature on the bond length and energy, Debye temperature, atomic cohesive energy, and binding energy density for layered black phosphorus using bond–phonon–photon spectrometric methods. We clarified the following: (1) atomic under‐coordinatio…
A polarization-insensitive unidirectional spoof surface plasmon polariton (SPP) coupler mediated by a gradient metasurface is proposed. The field distributions and average Poynting vector of the coupled spoof SPPs are analyzed. The simulated and experimental results support the theoretical analysis and indicate that t…
A new method for fabricating transparent conducting coatings based on indium-tin oxide (ITO) with a controlled refractive index is proposed. This method implies the successive deposition of material by electron-beam evaporation and magnetron sputtering. Sputtered coatings with different densities (and, correspondingly…
Unlike ferrous materials, where the cementite (Fe3C) phase acts as an abrasive that contributes to flank wear on the cutting tool, most titanium (Ti) alloys possesses no significant hard phase. Thus, the origin of flank wear is unclear in machining Ti alloys. To address this question, a Ti-6Al-4V bar was turned under…
Zinc oxide nanoparticles have been synthesized by a sol-gel microwave assisted method using either ethylene glycol (ZnO-EG) or poly ethylene glycol ethanolic solution (ZnO-PEG) as dispersing media. The nanoparticles were characterized by X-ray diffraction, field emission scanning electron microscopy, energy dispersive…