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。
Abstract In this work, aluminate type phosphorescence materials were synthesized via the solid state reaction method and the photoluminescence (PL) properties, including excitation and emission bands, were investigated considering the effect of trace amounts of activator (Eu3+) and co-activator (Dy3+). The estimated t…
(Ba 0.5 Sr 0.5 )Nb 2 O 6 films were synthesized on a Pt(111)/Si(001) substrate by RF gas-discharge sputtering in pure oxygen atmosphere. It was found that the films have a dominant crystallographic orientation in the [001] direction and natural unipolarity, which was revealed through analysis of dielectric and piezoel…
Breakdown strength (BDS) of the interface between the two solid dielectrics is much lower than the BDS of the bulk materials due to formation of microscopic cavities at the interface. The main motivation of this paper is to explore the impact of the applied contact pressure and composite elastic modulus on the AC tang…
Hybrid composites find applications in many advanced fields that include aerospace and armour due to their high specific strength and high energy absorption capacity. The present study has attempted to develop cost effective E and S2 glass based hybrid composites for armour applications in order to get advantages of b…
In order to determine the durability of polymer coatings using investigation techniques based on X-rays diffraction and combined techniques for thermal analysis (TG-DTA-DTG), were determined the changes of structure and of their thermo-oxidative characteristics (6 different paint types having different characteristics…
A new method for constructing three-dimensional models of bimetallic nanoparticles is proposed. This method, which is based on X-ray absorption spectroscopy data on the number and type of nearest neighbors, provides information on the distribution of types of atoms over the nanoparticle volume. The application of the…
Abstract We have calculated the electronic structure and physical properties of metal thiophosphate compounds InPS4and AlPS4by means of pseudopotential density functional theory (DFT) coupled with the modern theory of polarization. The targeted physical properties are first and second order optical properties as well a…
Nitrogen-doped zinc oxide (N: ZnO) films have been prepared by oxidizing reactive RF magnetron-sputtering zinc nitride (Zn-N) films. The effect of oxidation temperature and oxidation time on the growth, transmittance, and electrical properties of the film has been explored. The results show that both long oxidation ti…
Three-factor orthogonal design (OD) of Er 3+ /Gd 3+ / T (calcination temperature) is used to optimize the luminescent intensity of NaY(Gd)(MoO 4 ) 2 :Er 3+ phosphor. Firstly, the uniform design (UD) is introduced to explore the doping concentration range of Er 3+ /Gd 3+ . Then OD and range analysis are performed based…
This paper presents a new high-sensing-capacity system for active imaging. The proposed system consists of a Compressive Reflector Antenna (CRA) coated with Metamaterial Absorbers (MMA). The Compressive Reflector Antenna creates a spatial codification in the imaging domain, while the MMA creates a frequency codificati…
The current paper discusses the design, modeling and control of a Light weight robotic arm actuated by Shape Memory Alloy (SMA) actuators, usable for applications such as Aerial Manipulator. Compared to servo motor based robotic arm the proposed design has an added advantage of light weight and high force to mass rati…
The effect of the working gas pressure (P ≈ 1.33–0.09 Pa) and the substrate temperature (T s ≈ 77–550 K) on the texture and the microstructure of nickel films deposited by magnetron sputtering onto SiO2/Si substrates is studied. Ni(200) films with a transition type of microstructure are shown to form at growth paramet…
A series of ceramic samples of the compositions BiF3:1%Ho3+, BiF3:4%Ho3+, BiF3:1%Ho3+ + 1%Yb3+, and BiF3:1%Ho3+ + 3%Yb3+ is synthesized and the conversion of Tm:YLF laser radiation (λ = 1908 nm) is studied. The luminescence spectra exhibit bands in the regions of 490, 545, and 650 nm. The kinetic measurements of the a…
The effects of crystalline orientation on the ferroelectric properties of lead zirconate titanate (PZT) thick films deposited on (111)-oriented Pt/Ti/SiO 2 /Si substrates by using a modified spincoating method have been studied. The texture and the microstructure of the thick films were characterized by using X-ray di…
We report two recent nanoelectrical characterizations of CdTe and Cu(In, Ga)Se2(CIGS) thin-film solar cells by developing atomic force microscopy-based nanoelectrical probes. Charges trapped at defects at the CdS/CdTe interface were probed by Kelvin probe force microscopy (KPFM) potential mapping and by ion-milling th…
Due to the shortage of wood as origin materials for paper-based production, agro-residue materials have been explored in the quest of finding the best alternative fibre. Oil palm leaf (OPL) is one of agro-residue that has potential due to its comparable characteristics with wood fibre. Studies on chemical compositions…
Though much excitement surrounds two-dimensional (2D) beyond CMOS fabrics like graphene and MoS2, most efforts have focused on individual devices, with few high-level implementations. Here we present the first graphene-based dot-product nanofunction (GDOT) using a mixed-signal architecture. Dot product kernels are ess…
New electrically conductive composites reinforced by single-walled carbon nanotubes were studied in this work. The main properties of conductive composites, which were developed, such as electrical (dielectric spectroscopy and volume resistivity), mechanical (elongation at break, Young's modulus, yield strength), and…
Abstract There is a general consensus to develop renewable energy storage and conversion technologies to replace fossil fuel energy for sustainable development. Currently, the development of high performance energy storage and conversion devices is an important step on the road to alternative energy technologies. With…
We present a predictive Boltzmann model for the cross-plane thermal conductivity in superlattices. The developed model considers particle-like phonons exhibiting wave characteristics at the interfaces and makes the assumption that the phonon heat transport in a superlattice has a mixed character. Exact Boltzmann equat…