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。
SUMMARY The decomposition characteristics of an artificial biogas, which is a mixture of CH 4, CO 2, and H 2 S, using a low‐pressure DC glow discharge have been investigated. It is found that H 2, CO, C 2 H 2, H 2 O, CS 2, and COS are produced from the artificial biogas in the glow discharge. About 65% of the hydrogen…
Abstract The interest in the development of polymer nanocomposites by reactive extrusion has been growing in the past years. This work aims to investigate the effect of the polymer reactive groups on chemical reaction extension and consequently, on the morphology of the nanocomposites. For that, two polymers, polyprop…
Abstract A series of cationic Ester-containing Gemini surfactants, alkanediyl-α- and ω-bis(dimethyl acyloxyethylammonium bromide), were synthesized and symbolized as II-m-n (m = 12; n = 3, 4, 6). The surfactants were characterized by 1H-NMR. The surface active properties and thermodynamic properties of these surfactan…
Shape Memory Alloys (SMAs), as a branch of smart material actuators, are widely researched in the areas of control applications. These actuators exhibit considerable hysteresis between the supply voltage (conventionally used in resistive heating) and position characteristics of the SMA. Unless a model matches the actu…
We use theoretical simulations to study how oxidative and humid environments affect the chemical composition, shape and structure of ceria nanoparticles. Based on our calculations, we predict that small stoichiometric ceria nanoparticles will have a very limited stability range when exposed to these environments. Inst…
Biological anions have often proven to be difficult analytes to differentiate in solution. Many of the anions bear similar structural characteristics and similar charge states. Using a commercially available indicator and AT-PAMAM dendrimers, a sensing ensemble for a number of biological anions was constructed. The sy…
The revolutionary multiple memory material technology allows local modification of shape memory alloy functional properties to create monolithic actuators that exhibit several different thermomechanical characteristics. In this work, high density laser energy was used to process a monolithic piece of NiTi shape memory…
Laser-assisted localized growth of semiconducting nanostructures is reported. As is the case of conventional crystal growth, localized laser enables three kinds of crystal growth: (1) melt growth (recrystallization) of amorphous silicon nanopillars by pulsed laser; (2) vapor growth (chemical vapor deposition) of germa…
Three supramolecular compounds based on Keggin phosphomolybdate and different flexible ligands, Cu3(bei)6(PMo12O40)2·6H2O (1), (H2bbi)(Hbbi)(PMo12O40)·2H2O (2), and (H2bpp)3(PMo12O40)2·6H2O (3) (bei = 1,1’-(1,2-ethanediyl)bis(imidazole), bbi = 1,1’-(1,4-butanediyl)bis(imidazole), bpp = 1,3-bi(4-pyridyl)propane)), have…
The effect of precipitation on the thermo-mechanical properties of Ni-rich near-equiatomic NiTi Shape Memory Alloys (SMAs) is investigated via the finite element method. The thermo-mechanical response is simulated using a Representative Volume Element (RVE), which takes into account the structural effect of the precip…
In this paper, we report a comprehensive analysis of the adsorption of argon in cylindrical pores of finite length having different dimensions and adsorbent energies. We determine the mechanisms of adsorption and desorption in the hysteresis region, and use the recently introduced mid-density scheme, as an approximate…
RETURN TO ISSUEPREVAdvertisementNEXT2014 Winter Conference on Plasma SpectrochemistryCite this: Chem. Eng. News 2013, 91, 37, 20Publication Date (Print):September 16, 2013Publication History Published online31 March 2014Published inissue 16 September 2013https://doi.org/10.1021/cen-09137-ad06Copyright © 2013 Chemical…
The formation/disruption of the electron hopping pathways is considered to be one of the dominant mechanisms affecting macroscale effective piezoresistive response of carbon nanotube (CNT)-polymer nanocomposites. In this study, a computational micromechanics model is developed using finite element techniques to captur…
This article is a brief summary of my plenary talk at the World Biomaterials Congress in Chengdu, Sichuan, China, June 1–5, 2012. It highlights the trend to design and develop biomaterial implants and devices that are more compact and more efficient, as they “shrink” from the macro- to the micro- and down to the nano-…
Abstract In this study, porous TiO2 thin films were prepared by the sol‐gel method employing polyethylene glycol 1000 (PEG 1000) as an organic template. Pore sizes were adjusted by varying the concentration of PEG 1000. The optimal PEG concentration range required to form TiO2 films with a regular porous structure was…
FeCo / PZT / FeCo cylindrical heterostructures were prepared by electroless deposition. Scanning electron microscopy shows that the magnetostrictive FeCo layers are in contact with piezoelectric PZT directly. To control the resonant frequency at which the magnetoelectric coupling shows an obvious improvement, the heig…
We compare two types of laser ablation for ARC removal on polished and textured surfaces. Selective ablation with limited impact on the underlying substrate is performed with short wavelength picosecond sources working at relatively low repetition rate (<200 kHz). By adapting wavelength and fluence, the SiNx could be…
This contribution shows the potential of cold gas spraying for the production of photoelectrodes employing photoelectrocatalysts for the water oxidation reaction. Conventional methods of coating usually employ sol-gel methods and calcination to obtain a good binding of the coating to the substrate. In cold gas sprayin…
Shape memory alloys (SMA) are smart materials with the ability to remember a previous imprinted shape after plastic deformation. The shape memory actuator effect is induced by thermal energy. Its bases on crystalline transformation of NiTi-alloys from the austenitic B2 to the martensitic B19′ phase. Usually, SMA actua…
To optimize pulse field magnetization processes for high-temperature superconducting (HTS) bulk magnets, it is important to control the magnetic field amplitude and the driving temperature. Many publications have reported on the experimental and numerical results of the pulsed-field magnetization method. In the numeri…