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。
ZnS nanotetrapods synthesized via a solvothermal route have a octahedral core with a zincblende (ZB) structure and four hexprism-shaped arms consisting of alternately stacking ZB and wurtzite (WZ) phases, where the WZ phase has a higher volume percentage. In situ angular-dispersive X-ray diffraction (ADXRD) measuremen…
In this manuscript, we investigate the influence of loading rate and fibril length on viscoelastic and failure behavior of collagen nanofibrils. The computational experiments were performed using three-dimensional shape-based Coarse-Grained models of collagen nanofibrils, with parameters derived from atomistic simulat…
For more than one decade, were the only three confirmed commensurate SmC* variant phases with periodicities less than or equal four layers. In 2006, employing ellipsometry and resonant X-ray diffraction (RXRD), our research team first discovered a new liquid crystal mesophase having a six-layer periodicity in one tern…
While the Mg–Y–Nd system is used for industrial applications, the details of the precipitation sequence and exact role of each alloying element during ageing have not been fully quantified. Focusing on WE43, a Mg–Y–Nd alloy containing Zr, the chemistry of β′ precipitates and matrix during isothermal ageing at 250 °C i…
Integrating graphene into nanoelectronic device structure requires interfacing graphene with high-κ dielectric materials. However, the dewetting and thermal instability of dielectric layers on top of graphene makes fabricating a pinhole-free, uniform, and conformal graphene/dielectric interface challenging. Here, we d…
The effect of sintering temperature on the giant electric field-induced strain was observed in lead-free Bi0.5(Na0.77 Li0.05K0.18)0.5(Ti0.975Ta0.025)O3 ceramics. The grains size and dense structure increased with increasing of the sintering temperature. The growth of polar phases was observed in non-polar phase when s…
A series of poly(methyl methacrylate) derivatives containing polyhedral oligomeric silsesquioxane (POSS) groups (MCP#) were synthesised via free radical polymerisation (FRP) using methacryl isobutyl POSS (MA-POSS) and methyl methacrylate as monomers to investigate liquid crystal (LC) alignment property of these polyme…
Cadmium selenide (CdSe) nanocrystals ingrained dielectric nanocomposites in a B 2 O 3 –SiO 2 –Al 2 O 3 –Na 2 O–K 2 O borosilicate glass system were synthesized by a single step in situ melt quenching technique. The sizes of the nanocrystals as well as the band gap of the nanocomposites were controlled by both concentr…
The electropolymerization of furan, pyrrole and thiophene in strong basic media was mathematically described. Two models for the cases of the insoluble and soluble anodes were described and analyzed by using the linear stability theory and bifurcation analysis and compared with the models for other cases of electropol…
The George Washington University (GWU) has developed a CubeSat-class thruster called the Micro-Cathode Arc Thruster (μ CAT). The μCAT is a high Isp (2000–3500s), solid metal fueled, low average power (<0.1 W when operating) micro-thruster of small cross section (5 mm), with a mass of less than 200g, and no pressurant…
A mathematical model is developed to simulate the production of bio‐based polytrimethylene ether glycol (PO3G) using 1,3‐propanediol. The effect of super‐acid catalyst is accounted for in the model, as is mass transfer of small species (water, monomer, and propanal) and linear oligomers (dimer to heptamer). This model…
A low voltage polymer-stabilised blue-phase liquid crystal display (PSBP-LCD) with triple-penetrating fringe fields (TPFF) is proposed. The PSBP-LCD employs in-plane switching (IPS) electrodes and two etched substrates to generate the TPFF. These fields including strong horizontal electric fields are symmetrically dis…
Strain-hardening in tri-component nano-scale metallic multilayers was investigated using nanoindentation and micro-pillar compression. Cu/Ni/Nb films were made in tri-layer structures as well as bi-layers consisting of an alloy of Cu–Ni/Nb. Strain-hardening increases as the layer thickness decreases, with 5 nm layers…
In the present study, double sintered nanocrystalline silica xerogel (NSX) bulk material has been produced from amorphous silica xerogel (ASX) powders extracted from sago waste ash. The ASX powders have been sintered at 1200°C, milled, pressed and then re-sintered at temperatures ranging from 1200° to 1600°C. The crys…
The corrosion of duplex stainless steel 2205 was investigated both under service conditions and via an electrochemical study in chlorinated media. The steel sample surfaces showed pitting, crevice and selective dissolution, with the ferrite phase being more susceptible to dissolution in this media. The dissolution of…
Binary phase diagrams were constructed from laterally substituted methyl azo/ester derivatives, namely 4-(4″-substituted phenylazo)-3-methyl phenyl-4″-alkoxy benzoates (Ina–d). In this group of compound the unsubstituted and chloro-substituted derivatives possess the nematic phase monotropically, while the nitro and m…
Abstract The review presents the state-of-the-art analysis of investigations in the field of a new line of research of photochromism – nanophotochromism. The design, properties, and possible applications of photochromic nanoparticles prepared by different methods with the use of photochromic substances (aggregates, ho…
Collagen can absorb and associate with nanoparticles, which can have significant impact on the biological behavior of collagen and nanoparticles in a biological fluid. Iron oxide nanoparticles encapsulated with polystyrene-block-poly(acrylic acid) has been synthesized and characterized. Viscosity, circular dichroism,…
High‐efficiency III–V solar cells typically incorporate an indirect wide‐bandgap semiconductor as a passivation layer to limit surface recombination at higher photon energies. The poor extraction efficiency of the carriers photogenerated in this window layer limits the performance of the devices in the high‐energy reg…
Solution-casting technique was employed for the preparation of solid polymer electrolyte based polyethylene oxide (PEO) with 0, 1, 3 and 5 weight percentage cobalt chloride (CoCl2) films were characterized by X-ray Diffractometry (XRD), Differrential Scanning Calorimetry (DSC), Scanning Electron Microscope (SEM) and U…