Materials Literature
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This research goal is to investigate the surfactant effects on carbon/epoxy composites nano-modified by graphene and carbon nanotubes (CNTs). Multi-layered graphene (MLG) and multiwall carbon nanotubes were dispersed with two different surfactants, one ionic and another non-ionic, i.e., sodium dodecylbenzenesulfonate…
As the nano-SiC has high hardness, high thermal conductivity, elastic modulus, excellent wear resistance and other properties, In this study, the use of nano-SiC as a reinforcing agent. The nano-SiC was wrapped via the method of reflux by KH-550 (γ-aminopropyltriethoxysilane), the SiC can be better dispersed in waterb…
IEEE 1459-2010 defines a set of power components for measuring power quality factors such as active power, reactive power and apparent power. In a recent paper, the stationary wavelet transform has been proposed to evaluate the power components. In this paper, the use of the stationary wavelet transform to evaluate th…
In recent years, solar cells, especially the bulk heterojunction (BHJ) polymer solar cells (PSCs), have attracted considerable attention. BHJ PSCs have several advantages such as easy fabrication, light weight, low cost and flexibility. The research on ternary BHJ PSCs will become a hot topic since incorporating near…
Titanium carbonitrides containing transition metal ((Ti, Me)(C, N), Me: transition metal) have been studied for applying them to cutting tools and wear- resistant tools. Thermal shock resistance is an important property of tool materials used in severer thermal environment. Therefore, the thermal conductivity of such…
Cordierite body with formulation of non-stoichiometric composition (2.5 MgO. 1.8 Al2O3. 5 SiO2) was synthesized using conventional techniques with standard raw materials. The sintering and crystallization behavior of the compositions was observed by Differential Thermal Analysis and Thermogravimetric Analysis (DTA/TG)…
In the present paper, we investigated microwave properties of polymer composites based on multiwall carbon nanotubes. The multiwall carbon nanotubes used in the composite were about 9.4 nm and 18.4 nm in diameter. The results show that the ultrasonic treatment modifies the dielectric properties of the composite. The d…
在水热条件下利用H2btpa配体合成了2个镧系金属配合物{[Ln(btpa)(H2O)(OH)]·bpy}n(Ln=Tb(1),Pr(2),H2btpa=5-(3',4'-二(四唑-5 '-基)苯氧基)间苯二甲酸,bpy--4,4'-联吡啶),并用元素分析、红外光谱、X射线粉末衍射、X射线单晶衍射对其进行了表征.配合物1和2中,双核镧系金属单元通过btpa2-配体以μ4∶η1,η2,η1,η2的配位模式连接,形成二维网状结构,客体分子4,4'-联吡啶通过分子间的氢键作用存在于结构中.相邻的二维网通过氢键的识别作用以锁链形式拓展为三维超分子结构.室温下配合物1呈现出TbⅢ的特征荧光发射峰.
A convenient high-yielding method for the preparation of very attractive lutetium( iii )–porphyrin complexes was developed (in sulfolane at reflux temperature, 0.5 h, up to 88%).
This study presents the comparison of impact duration between experiment and theory from impact signal through a Charpy test. Recently, the number of accidents on the highway has been increased and it depends on the impact duration of material that have the ability to provide adequate protection to passengers from har…
To assess the safety of the deep geological disposal that would store the spent nuclear fuel (SNF), studies are centred on the SNF behaviour under repository conditions. UO2, which is the most common compound of SNF matrix, is highly sensitive to the redox potential and it could be oxidised to more soluble phases, enh…
Polyaniline composites with multi-walled carbon nanotubes modified by benzene-, amino- and aminobenzene groups were chemically synthesized. FTIR spectroscopy suggests parallel orientation of polyaniline benzene rings to the surface of carbon nanotubes while aminobenzene groups previously grafted to the nanotubes surfa…
Articular cartilage is suffered from high mechanical loads under normal physiological conditions and articular chondrocytes regulate the composition of peri-cellular matrix (PCM), in response to mechanical signals. This study aims to investigate influence of cyclical dynamic compression on matrix metabolite and mechan…
This paper presents an inclusive study and analysis of graphene-based MOSFET device at 32nm gate length. The analysis was based on top-gated structure which utilized Hafnium Dioxide (HfO2) dielectrics and metal gate. The same conventional process flows of a transistor were applied except the deposition of bilayer grap…
Roll-to-roll nanoimprint lithography (RTR-NIL) has received considerable attention because it permits large-area nanopatterning with both high resolution and high throughput. However, the application of RTR-NIL is restricted by difficulties in fabricating nanoscale roll molds. Seamless roll molds are especially desira…
Impregnation of nanocrystalline magnesium and iron at different concentrations into Beta zeolite was studied employing two techniques: the Traditional Method (TM) and Mechanical Milling (MM). It is known that hydrogen is a potential fuel for the development of the society in a friendly environment with the world; howe…
Conducted laboratory studies of the threading in the details of ship machinery and ship armatures from hard materials helped to create the modern technology of internal threads of small diameters cutting. The reasons that impede the processing of hard materials are find out. Presented are various designs of taps for c…
Interfaces are important in the functionality of materials with composite structures. Focusing mainly on our studies, this article provides an overview of the functionality that can be achieved by the careful design of interfaces in inorganic composites. Molecular selective photocatalysts have been realized by develop…
Non-faradaic Electrochemical Modification of Catalytic Activity (NEMCA) of propane oxidation at Pt dispersed on yttria-stabilized zirconia (YSZ) discs by strong electrostatic adsorption (SEA) and wet impregnation (WI) in wireless configuration was studied and compared. With a stoichiometric gas mixture of propane and…
Attosecond transient reflectivity in the extreme ultraviolet is developed for monitoring band-gap excitation dynamics in germanium. The investigations unravel the fastest carrierscattering processes on the few-femtosecond time scale, and carrier thermalization on longer time scales.