Materials Literature
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The following article investigates the interface thermal conductance in a functionalized CNT-epoxy composite system and how does it change with respect to the nature of the surrounding matrix. We have used non-equilibrium molecular dynamics simulations to study the interface thermal conductance in both cured as well a…
International audience
Abstract Melt extrusion of polyvinyl alcohol (PVOH) is desirable over commonly practiced solution film casting due to reduced energy input, environmental footprint, and processing cost, however, melt extrusion processing of plasticized polyvinyl alcohol (PVOH) presents a significant processing challenge due to inheren…
An organic–inorganic coplanar-shaped hexa-CuII sandwiched hybrid, (H2en){[Cu(en)2]2[Cu2(en)2Cu4(H2O)2](B-α-AsW9O34)2} · 5H2O (en = ethylenediamine) (1), has been synthesized via hydrothermal method and further characterized by IR spectroscopy, thermogravimetric analysis, and X-ray single-crystal diffraction. Single-cr…
In this work, polyaniline (PANI) nanorods and magnetite (Fe3O4) nanoparticles have been synthesised by using ammonium persulphate as oxidant via in-situ chemical oxidative polymerisation of aniline in presence of excess of organic sulphonic acid. The resulting PANI/Fe3O4 nanocomposites materials were characterised usi…
Abstract Experimental data are reported on isotactic polypropylene in uniaxial tensile cyclic tests with a strain‐controlled program (oscillations between fixed minimum and maximum strains). The following characteristic features of stress–strain diagrams are observed: (i) logarithmic decay in maximum and minimum stres…
Endowing conventional microcrystalline materials with nanometer-scale grains at the surfaces can offer enhanced mechanical properties, including improved wear, fatigue, and friction properties, while simultaneously enabling useful functionalizations with regard to biocompatibility, osseointegration, electrochemical pe…
Nanocrystalline CdSe films are deposited on glass substrates by the chemical bath deposition method at different molarities and at room temperature. The structural parameters such as lattice constant, internal strain and dislocation density of CdSe nanocrystals are measured from X-ray diffractrograms using the William…
By using first-principles calculations and classical image force model, we studied the image force induced Schottky barrier (SB) height reduction in carbon nanotube (CNT)-metal contact. A low dielectric constant leads to a stronger band bending and therefore strongly reduces the SB height. This reduction depends on ca…
Abstract Sodium caseinate (NaCAS) was blended with commercially available biodegradable polyester, poly(butylene adipate‐ co ‐terephtalate) (PBAT) with the aim to obtain environmentally friendly materials for packaging applications with increased oxygen barrier properties. Mechanical properties (tensile strength, elon…
The aggregation of macrocyclic oligocholates with introverted hydrophilic groups and aromatic side chains was studied by fluorescence spectroscopy and liposome leakage assays. Comparison between the solution and the membrane phase afforded insight into the solvophobically driven aggregation. The macrocycles stacked ov…
The adsorption and desorption of hydrogen on Ir/SiO(2) catalyst were studied by using in situ diffuse reflection infrared Fourier transform spectroscopy (DRIFTS) combined with curve-fitting analysis. The results indicate that there are three different surface species formed on the catalyst that correspond to the peaks…
This article proposes an improved surrogate model for the prediction of the elastic modulus of carbon nanotube–reinforced-nanocomposites. By statistically combining micromechanical modeling results with limited amounts of experimental data, a better predictive surrogate model is constructed using a two-stage sequentia…
Hard template-based fabrication of mesoporous carbon unavoidably goes through the removal process of the template to generate template-free carbon replica, including troublesome disposal of template waste often accompanied by toxic etchant, which not only increases the fabrication cost of materials but also raises ser…
We report a differential scanning calorimetry investigation of the adsorption of normal alkanes on the surface of hexagonal boron nitride. The alkanes investigated (pentane–hexadecane) all show small transitions above the bulk melting point. On the basis of similar results on graphite, we assign these transitions as t…
Recently, the ability of polymeric collagen-like peptides to regulate cell behavior has generated great interest. A triple-helical peptide known as collagen-related peptide (CRP) contains the sequence (Gly-Pro-Hyp)(10). With Gly-Pro-Cys triplets appended to both of its termini, designated CRP(cys), chemical cross-link…
In this paper, we propose a charge-trap flash memory device using a ferroelectric material, Sr0.7Bi2.3Nb2O9 (SBN), with spontaneous polarization as a blocking layer. This device consists of metal/SBN/nitride/oxide/silicon and has an advantage in the carrier injection into the nitride from the silicon due to polarizati…
Reaction of the n = 3 Ruddlesden-Popper oxychloride Sr(4)Mn(3)O(7.5)Cl(2) with calcium hydride yields the topotactically reduced phase Sr(4)Mn(3)O(6.5)Cl(2). The deintercalation of oxide ions from the central MnO(1.5) layer of the starting phase is accompanied by a rearrangement of the anion lattice, resulting in a la…
Zone-coated diesel oxidation catalysts (DOCs) can be used to obtain overall improved performance in oxidation reaction extents. However, why this occurs and under what conditions an impact is expected are unknown. In order to demonstrate why these catalysts work better than their standard counterparts and how signific…
To improve electrical properties a high temperature annealing treatment was applied to several transparent conductive oxides (TCO), namely tin doped indium oxide (ITO), Ga- or Al- doped ZnO (ZnO:Al/Ga), ion beam assisted deposited (IBAD) ZnO:Ga and Ga doped zinc magnesium oxide (ZnMgO:Ga). All these films were grown b…