Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The durability of the springs is limited by plastic deformation, fatigue and fracturing. From this point of view, the use of spring steel with following properties is recommended: high ductility and toughness at operation temperatures from −40°C to +50°C, good hardenability that provides required mechanical properties…
Analytical treatment of a slotted piezoelectric ceramic ring transducer vibrating in flexure is presented. The mode shape of the slotted ring vibration is determined, and parameters of the equivalent electromechanical circuit of the transducer are calculated. Possibilities to optimize the effective electromechanical c…
Zinc Oxide (ZnO) Nanoparticles are most widely used in the field of Biotechnology and Nanoelectronics due to their good transparency, high electron mobility, strong room-temperature luminescence and nontoxic. Due to their increasing demand, highly specified and monodispersed nanoparticles formation is a revolutionary…
The tritium breeding blanket is an essential part of a future DT fusion power reactor. Test Blanket Modules (TBM) will be installed in the experimental reactor ITER with the aim to investigate the nuclear performance of different designs. Currently there is no qualified neutronics instrumentation for the TBMs which is…
The formation of deprotonated forms of tetra(t-butyl)phthalocyanine ((H2 tButPc) and octa(pentoxy)-phthalocyanine (H2OAmPc) in the system acetonitrile-1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) at 298 K was studied by the method of spectrophotometric titration. With increasing DBU concentration sequential formation occu…
This paper proposes a model for the internal temperature of a SI engine catalyst. The modeling approach is grounded on a one-dimensional distributed parameter model, which is approximated by a time-varying input-delay system whose dynamics parameters (time constant, delay, gains) are obtained through a simple analytic…
In this paper, we study a three-resonant metamaterial with the combination of dual-resonant and single-resonant metamaterials. We present a new method to design multi-resonant metamaterial, which has a smaller dimension than general symmetric and asymmetric multi-resonant metamaterials. Theoretical and experimental re…
Abstract The new mineral aluminopyracmonite, ideally (NH4)3Al(SO4)3, was found in a medium-temperature (∼250°C) intracrater active fumarole at La Fossa crater, Vulcano, Aeolian Islands, Sicily, Italy. It occurs on a pyroclastic breccia as colourless to white prismatic crystals up to 0.2 mm long, in association with ad…
The effect of different wood flour sizes on strength and dimensional properties of wood-plastic composites were examined. Wood flour of different particle sizes viz; 1.00mm, 2.00mm and >2.00mm were compounded with recycled low-density polyethylene (LDPE) at different wood/plastic ratio of 1: 1, 2: 3 and 3: 2. The resu…
In this paper, dielectric spectroscopy is adapted to investigate the dielectric response, in the frequency range 10-2-106Hz, of a low-voltage cable for nuclear power plants. Cable samples were aged under accelerated stress conditions up to an equivalent aging time of 60 years. The aging procedure consisted of two phas…
Using various transport and magnetotransport probes, we study the coexistence of spin-density wave and superconductor states in (TMTSF) 2 ClO 4 at various degrees of ClO 4 anions ordering. In the two-phase complex state when both superconductivity and spin-density wave are observed in transport, we find prehistory eff…
The electronic structure and phase composition of amorphous multilayered nanostructures (Co 45 Fe 45 Zr 10 / a -Si) 40 and (Co 45 Fe 45 Zr 10 /SiO 2 ) 32 have been investigated by means of the X-ray absorption near-edge structure (XANES) technique, which is the most sensitive and useful in investigation of the chemica…
Graphene oxide (GO) and chemically modified graphene oxide have been dispersed in low amount (until 0.5 wt%) into epoxy resin. Comparing the dielectric responses of the polymer nanocomposites with those of neat epoxy, no significantly changes were noted. Relevant differences were recorded after a post-curing heating t…
Previous studies have shown that using biodegradable magnesium alloys such as Mg-Zn and Mg-Zn-Al possess the appropriate mechanical properties and biocompatibility to serve in a multitude of biological applications ranging from endovascular to orthopedic and fixation devices. The objective of this study was to evaluat…
Epoxy resin (EX) is widely used for insulation in electric devices, but it has a relatively low thermal conductivity. One approach to obtain a higher thermal conductivity is to introduce inorganic fillers which have high thermal conductivity. Tracking failure is a thermal breakdown phenomenon which has a close relatio…
We demonstrate a method for engineering substrates for surface enhanced Raman spectroscopy (SERS) by Ag− ion implantation in Si. The implantation dose and beam current density are chosen such that the Ag concentration in Si exceeds the solid solubility limit, causes aggregation of Ag and nucleates Ag nano particles. T…
Abstract This paper relates an infrared (IR) (6000–2500; 1400–400 cm–1) spectroscopic study of sideronatrite, Na2Fe3+(SO4)2(OH)·3H2O. Spectra in the 600–1250 cm–1 range are dominated by fundamental S–O absorption bands. Factor-group analysis based on the space group P212121(D42) is in accordance with the observed band…
We have been proposing a new oxide compound semiconductor, gallium oxide (Ga2O3), as a promising candidate for power device applications because of its excellent material properties and suitability for mass production. The 4.8-eV bandgap and the Baliga's figure of merit of Ga2O3are much larger than those of SiC and Ga…
In this work the amorphous matrix of polystyrene provides a homogenous basis into which nanosilica particles are added. Composites are made with four different types of nanosilica particles which are subsequently compared. The DC breakdown strength of the resulting nanocomposite materials is measured as a function of…
Broken gap metal oxide tunnel junctions have been created for the first time by sputtering. Using a ceramic ZnO-SnO2target and a reactively sputtered copper target we created ZnSnO3and Cu2O for the n-type and p-type layers, respectively. The band structure of the respective materials have theoretical work functions wh…