Materials Literature
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Silicon carbide ( SiC ) coatings were fabricated using a chemical vapor deposition (CVD) process onto a graphite substrate at different deposition temperatures. The mechanical properties such as hardness, modulus, and creep properties from room temperature to 500°C were investigated using nanoindentation techniques. T…
A facile synthesis method was developed to form a nanoporous metal oxide layer using poly(furfuryl alcohol) (PFA) as a thermosetting polymer template. A nanoporous Ce0.8Sm0.2O1.9 (SDC) layer with high sinterability was prepared on an anode-supported electrolyte film at 900 °C, and used as a sinter-active layer in cell…
Vanadium-doped magnesium nanostructures are fabricated by an oblique angle co-deposition method and hydrogenated/dehydrogenated for 21 cycles. The effective thermal conductivity and density of the MgH2 nanostructures is measured by using a photothermal system. A multilayer physical model is used to fit the experimenta…
The organic interprismatic layers of the mollusc Pinctada margaritifera are studied using a variety of highly spatially-resolved techniques to establish their composition and structure. Our results show that both the interlamellar sheets of the nacre and interprismatic envelopes form layered structures. Additionally,…
Microencapsulated n-octadecane with melamine-formaldehyde resin (MF) as shell was successfully fabricated by in-situ polymerization. Three kinds of emulsifiers, sodium dodecyl sulfate (SDS), styrene-maleic anhydride copolymer (TA) and sodium dodecylbenzene sulfonate (DBS) were used in the emulsification. The effects o…
Homogenous core-shell structured Cu 2 O microspheres have been successfully fabricated by a reductive transformation of in situ formed intermediate templates in an aqueous solution. The morphological evolution for these unique hollow structures was monitored via SEM observations and a detailed formation process has be…
The immunogold technique is a valuable method for labeling cellular macromolecules. However, multiple labeling using colloidal gold (cAu) nanoparticles of different sizes presents certain drawbacks; namely, as particle size increases, there is a decreased labeling efficiency and diminished spatial resolution with resp…
The effect of dynamic vulcanization on properties of PP/NBRr blends has been investigated. Natural weathering has been carried out for period of 3 months and 6 months. It has been observed that tensile properties and oil resistance of the blends improved by dynamic vulcanization. SEM results indicate that dynamic vulc…
Self-exploding microcapsules are core-shell capsules that consist of a degradable microgel core surrounded by a semi-permeable membrane. When the microgel core degrades, the swelling pressure increases and finally the rupture of the surrounding membrane leads to release of the encapsulated species. This type of capsul…
The self-assembly and disintegration behavior of polyzwitterion, poly(4-vinylpyridiniomethanecarboxylate) (PVPMC), and negatively charged polyelectrolyte, poly(acrylic acid) (PAA), layer-by-layer (LbL) multilayer films were investigated in detail by using UV-vis absorption spectroscopy, quartz crystal microbalance (QC…
Nanoscale sensors based on single-walled carbon nanotube (SWNT) networks have been considered impractical due to several fundamental limitations such as a poor sensitivity and small signal-to-noise ratio. Herein, we present a strategy to overcome these fundamental problems and build highly-sensitive low-noise nanoscal…
Electron-beam-induced carbon film deposition has long been recognized as a side effect of scanning electron microscopy. To characterize the nature of this type of contamination, silicon wafers were subjected to prolonged exposure to 15 kV electron beam energy with a probe current of 300 pA. Using Raman spectroscopy, t…
Electrically conductive paper was prepared via in-situ chemical oxidative polymerization of pyrrole by using ferric chloride as an oxidant and p-toluenesulfonic acid (PTSA) as a dopant. The deposition of polypyrrole (PPy) on the fiber surface was verified by ATR-FTIR and SEM analyses. Pyrrole concentration had a signi…
Devices using electroactive polymer-supported carbon material can be exploited as alternatives to conventional electromechanical actuators in applications where electromechanical actuators have some serious deficiencies. One of the numerous examples is precise microactuators. In this paper, we show for first time the…
Nanocomposites based on polycarbonate (PC) containing sodium montmorillonite (NaMMT) and maleic anhydride grafted styrene-ethylene/butylene-styrene (SEBS-g-MA) were prepared by melt compounding method followed by injection molding. X-ray diffraction (XRD) and transmission electron microscopy (TEM) results revealed the…
The specific immobilisation of a histidine-tagged protein, Spi, onto mono-anchored nickel(II)-cyclam functionalised SBA-15 is reported.
Optimization of moulding process in order to maximize the recycled fraction in EPS products is a key industrial goal. To this end effects of quality and quantity of recycled EPS upon physical properties of products are studied. Results show, on the one hand, that the introduction of a recycled fraction brings to produ…
A new series of monolithic Eu(2)O(3)-doped high antimony oxide (40-80 mol%) content disordered matrices (glasses) of low phonon energy (about 600 cm(-1)) in the K(2)O-B(2)O(3)-Sb(2)O(3) (KBS) system was prepared by the melt-quench technique. Infrared reflection spectroscopy was used to establish the low phonon energy…
Five new mixed-framework trisilicates were synthesised using a high-temperature flux growth technique. Colourless, glassy plates of SrY 2 Si 3 O 10 crystallise in space group P 1, with a = 6.757(1), b = 6.885(1), c = 9.273(2) A, α = 72.42(3), β = 86.37(3), γ = 88.37(3)°, V = 410.38(12) A 3 , Z = 2. The main building u…
In order to ascertain the presence and the in muro localization of cellulose, the enzyme-gold affinity test was applied to algal cell walls. The high specificity of affinity cytochemistry allowed us, by using the enzyme cellulase, to confirm the available biochemical data and to give a map of the cellulose localizatio…