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 pressure-induced structure transitions of PbSe were investigated at pressures up to 50 GPa in diamond anvil cells using synchrotron powder and single-crystal X-ray diffraction methods. A phase transition from the initial NaCl-type structure to an intermediate phase was observed at 4.8 GPa, followed by another phas…
We present a new niche application of quasicrystalline powders that leads to a commercially successful development of polymer-matrix composites. The process is based upon selective laser sintering, which is one of the current most powerful additive manufacturing technologies in use in the mechanical industries. Charac…
In this paper, we report on the synthesis of BaTiO3 nanowires via the anodic aluminum oxide template method. To fill in the precursors of BaTiO3 into anodic aluminum oxide templates, the vacuum and drop loading method developed in our previous study was used. Ba(CH3COO)2 (barium acetate) and C12H28O4Ti (tetraisopropyl…
Y/MCM-48 composite molecular sieve was hydrothermally synthesized at different crystallization temperatures and crystallization times using ethyl orthosilicate as Si source and cetyltrimethyl ammonium bromide as template with the aid of fluoride ions and was characterized by X-ray diffraction, N2 physical adsorption t…
Superparamagnetic Fe 3 O 4 implanted and CdS coupled ZnO (Fe 3 O 4 /ZnO–CdS) microrods were synthesised by a two‐step hydrothermal method. Fe 3 O 4 /ZnO–CdS is superparamagnetic and is activated by visible light for solar photocatalysis. It is magnetically recoverable and reusable and exhibits excellent photocatalytic…
Generally, the insulation degradation and contacts failure happened inside the On Load Tap Changer (OLTC). Besides, the OLTC performance can be dropped due to contact wear. Hence., the worn contact creates hotspots inside OLTC tank and affects the insulating oil. Due to this phenomenon, the insulating oil will degrade…
The presented work is focused on the analysis of stress distribution around the graphitic particles in microstructure of ductile cast iron with the spheroidal shape of graphite (SGCI) and grey cast iron with the lamellar shape of graphite (LGCI). The analysis was made with help of the finite element method in the soft…
Polymer nanocomposites, synthesized using acid-functionalized multi-walled carbon nanotubes (MWCNTs) as filler material, are proposed for space radiation-shielding applications. The morphology and quality of the functionalized MWCNTs (f-MWCNTs) were evaluated using field emission scanning electron microscopy (FESEM),…
The Effect of 1 wt% and 3 wt% of polypropylene-methyl polyhedral oligomeric silsesquioxane (PP-POSS) as compatibilizer on polypropylene/silica (PP/SiO2) nanocomposites, prepared in the thermo Haake internal mixer was studied. The 3 wt% of PP-Methyl POSS added into PP/SiO2 system showed highest value of tensile strengt…
Even though metamaterials have been around for over 15 years, their optical applications have yet to gain significant commercial traction. Inspired by the Gartner Hype Cycle, which tracks the evolution of a technology over time, in this paper we examine the field of metamaterials from this perspective.
Here we show that transport-generated phase separation at the air-liquid interface in systems containing self-assembling amphiphilic molecules and polymers can be controlled by the relative humidity (RH) of the air. We also show that our observations can be described quantitatively with a theoretical model describing…
The possibility of magnetic ordering at dangling bonds in dislocation cores has been investigated theoretically. It has been experimentally shown that magnetic ordering in dislocations affects the spin-dependent effects occurring in dislocation crystals of silicon. It has been found that preliminary magnetic treatment…
지르코니아를 고정한 실리카(ZrO2-SiO2)와 망가니즈 산화물(MnOx)에 백금을 담지하여 제조한 촉매에서 수소에 의한 일산화질소의 선택적 촉매 환원(H2-SCR) 반응을 조사하였다. Pt-MnOx 촉매에서는 NO 전환율이 낮으며, N2O와 NO2생성이 억제되었다. 반면, Pt/ZrO2-SiO2 촉매에서는 NO 전환율이 높지만, 100~150 ℃에서는 N2O가, 200~300 ℃에서는 온도가 높아지면 NO2 수율이 높아져, N2 수율이 낮았다. ZrO2-SiO2에 MnOx와 백금을 같이 담지한 Pt-MnOx/ZrO2-SiO2 촉매에서는 100~150 ℃에서 이들…
Titanium is widely used in biomedical implants because of its excellent mechanical properties, good biocompatibility and high resistance to corrosion. However, the fabrication of titanium components often involves high cost due to the long processing time and difficulty in metalworking. Powder metallurgy is a near-net…
The peculiarities of the growth of PZT films on heteroepitaxial Ir/YSZ/Si structures under conditions of cathode radio-frequency sputtering of a ceramic target in argon-oxygen mixtures have been studied. It is shown that sputtering in a gas mixture with a high partial pressure of oxygen results in crystallization of t…
Poly acrylic acid (PAA) was synthesized by solution polymerization. We analysed that MBA dosage, acrylic acid percentage, neutralization degree and surface crosslink have affections on PAA, mainly about three properties (including 0.9%NaCl solution's absorptivity, absorptivity under 2068Pa, and holding ability of mois…
In this work we exploit the use of a new promising class of light harvesting materials, namely the hybrid organic halide perovskites (CH3NH3PbI3-xClx), for the fabrication of mesoscopic perovskite solar cells and series-connected monolithic perovskite module. To achieve this goal, important innovative procedures were…
In order to study heat generation and dissipation of water-cooled permanent magnet synchronous motor in electric vehicle, the major energy loss was calculated and the finite element model for interior heat transfer simulation was established based on appropriate simplification and equivalent processing. The fluid-soli…
The efficiency of internal combustion engines in trucks and passenger cars are low (<;40%). Much work has been done to make the engines more efficient internally, by improving the mechanical and electrical components. However, there is still a large amount of fuel power, which gets converted into heat and escapes thro…
Ken Harada, Hiroto Kasai; Accumulated Reconstruction Method for Electron Holography, Microscopy and Microanalysis, Volume 20, Issue S3, 1 August 2014, Page