Materials Literature
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The synergistic effects of aluminum oxide (Al 2 O 3 ) with layered double hydroxides (LDH) in ethylene vinyl acetate copolymer/LDH (EVA/LDH) composites have been studied using limiting oxygen index, UL-94 tests, and cone calorimeter test (CCT). The results from the UL-94 tests show that the Al 2 O 3 can act as flame-r…
We enumerate and classify nearly all of the possible mechanically stable (MS) packings of bidipserse mixtures of frictionless disks in small sheared systems. We find that MS packings form continuous geometrical families, where each family is defined by its particular network of particle contacts. We also monitor the d…
In this paper, we demonstrated a facile hydrothermal route leading to the generation of a new cobalt hydroxide, Co(OH)(3), nanobelt. This new product of Co(OH)(3) nanobelts was well characterized and identified by SEM, TEM, XRD, EDX, XPS, EXAFS, Raman, TGA and SQUID. Additionally, through systematic investigations on…
Two kinds of different ZnO nanostructures, nanotubes, and nanoflowers were synthesized using an aqueous solution approach. It was demonstrated that the addition of Al 3+ and ZnO sol causes the different growth behavior of ZnO nanostructures, and leads to the formation of a nanotube array as well as self‐assembled nano…
Novel multi-color fluorescent nanoprobes were prepared by electrostatically assembling differently sized CdTe quantum dots on polyethylenimine (PEI) functionalized multi-walled carbon nanotubes (MWNTs). The structural and optical properties of the nano-assemblies (MWNTs-PEI-CdTe) were characterized by transmission ele…
-doped were synthesized by a solid-state reaction. The structure and luminescence were investigated. The main excitation bands located at a band extending from 380 to 450 nm could match the emission of UV light emitting diode chips. The phosphors exhibited the emission in the wavelength range of 600–750 nm. The lumine…
Aluminum nitride (AlN) ceramics has been prepared by nonaqueous gelcasting in air and sintering in nitrogen atmosphere. The influence of pH and dispersant on the ζ potential of AlN–ethanol slurry was studied. And the rheological behavior of the slurry was evaluated to optimize the dispersant content and solid loading.…
Photo‐thermo‐refractive (PTR) glass undergoes a refractive index change after UV exposure followed by heat treatment for nanocrystallization of NaF, allowing phase holograms to be permanently recorded in the glass. PTR glass was invented 60 years ago, and optical elements based on PTR glass have been produced for the…
ABSTRACT Good textile sensory characteristics required by the consumers incites textile industrialists to improve the sensory properties of fabrics. Therefore, several textile finishing processes have been proposed to improve the feel of fabrics. This work investigates the effects of some finishing treatments on the t…
Vernetzt: Ein ABA-Triblock-Copolymer mit geladenen Endgruppen und ein entgegengesetzt geladener Polyelektrolyt bilden Gele, die auf Änderungen in Konzentration, Temperatur, Ionenstärke, pH-Wert und Ladungszusammensetzung reagieren. Oberhalb der kritischen Gelbildungskonzentration verbrücken die Triblock-Copolymere Mic…
Polycrystalline BiFeO 3 and Bi 1− x Tb x FeO 3 (BTFO) ( x =0.05–0.16) thin films were deposited on indium tin oxide/glass substrates via a metal organic deposition method. The influence of Tb doping content on the structure and multiferroic properties was investigated. X‐ray diffraction results reveal that there may e…
Experiments in the past have only been able to suggest that Ga--Ga bonds are not favored in the cage structure of ${\text{Ba}}_{8}{\text{Ga}}_{16}{\text{Sn}}_{30}$ and other type-I clathrates. Here we show definitive evidence that this is indeed the case. Using the extended x-ray-absorption fine structure technique, w…
We carried out a molecular-dynamics (MD) study of the self-diffusion tensor of a Lennard-Jones-type fluid, confined in a slit pore with attractive walls. We developed Bayesian equations, which modify the virtual layer sampling method proposed by Liu, Harder, and Berne (LHB) [P. Liu, E. Harder, and B. J. Berne, J. Phys…
Based on analytical derivations and numerical simulations, we show that both reflection and transmission can be canceled at the surface of a metamaterial (MM) with a metal-dielectric stratified structure. Strong anisotropic absorption and the surface direction are found to play important roles in this phenomenon. For…
The one-dimensional nano/microstructures of metal−organic complex (Ag−TCNQ) were synthesized by solution route via the reaction between Ag film and TCNQ. We have grown micrometer-sized Ag−TCNQ crystals by simply spin-coating the TCNQ solution over Ag substrate and treating at elevated temperature. The reproducible mem…
A new main-chain NLO hyperbranched polymer (P1) was first prepared through a simple synthetic route, which demonstrated much better NLO properties (d33 value up to 143.8 pm/V) than its corresponding linear analogue (P2), since the three-dimensional spatial isolation from the highly branched structure could greatly enh…
1,3,5,7-Tetramethyl-1,3,5,7-tetrahydroxycyclotetrasiloxane has been synthesized in good yield from tetrapotassium tetramethylcyclotetrasiloxanolate. Methods for isolation of all-cis-isomer I and cis-trans-cis-isomer II as the only crystalline product have been developed. Both isomers have been characterized by single-…
The adsorption/dissociation of the O 2 molecule on the surface of silicon carbide nanotubes (SiCNTs) was investigated by density functional theory. We found several adsorption configurations, including chemisorption and cycloaddition configurations, for triplet and singlet O 2 . Unlike the case for carbon nanotubes, t…
In the present paper, Tm 3+ /Yb 3+ ‐codoped lanthanum aluminum germanate glasses are prepared by simply melting and quenching method. Quantum cutting (QC) between Tm 3+ and Yb 3+ ions in these samples is realized; in the QC process, one blue photon at about 467 nm is cut into two near‐infrared photons at about 1 μm. T…
We report a new “grafting to” technique for the functionalization of silica particles with anionically produced polymers. It is based on a two-step procedure. In the first step the silica nanoparticles were modified with multifunctional chlorosilanes. This procedure allows replacing the original Si−OH surface groups b…