Materials Literature
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The redissoluble functional compound/carbon nanotube (CNT) composites are important for post processing because CNT dispersions usually easy aggregate and therefore make additional processing very difficult. Due to the outstanding electronic, photophysical and photochemical properties of porphyrin and CNT composites,…
Conventional textile is no more a profitable business even after huge investments, due to highly competitive market. Therefore, it is understandable for a country to seek technological up-gradation for competitive edge. It is also believed that the intelligent application of new technologies can certainly boost up the…
To prepare expandable graphite (EG) with high anti-flame property for Linear low density polyethylene (LLDPE), dosages of oxidant KMnO 4 , intercalation reagent H 2 SO 4 and ancillary intercalation reagent Na 4 P 2 O 7 were optimized during oxidation intercalation reaction of natural graphite. EG with an initiation ex…
The paper presents results of theoretical and experimental studies on the process of rolling bimetallic ribbed bars in the finishing pass. The work has determined the effect of the shape of oval preformed strip with a variable clad layer share on the distribution of clad layer thickness in bimetallic ribbed bars rolle…
In the present experimental study, after studying the impact of phase separation on (U1-y,Puy)O2-x MOX fuel at y=0.45 and.0.55 at room temperature, phase equilibria has been investigated at high temperature up to 1700K by High Temperature X-Ray Diffraction measurements. We provide new data on the phase separation temp…
Single cells based on Ni-CeO 2 -WC-YSZ anodes were investigated as an alternative material for direct methane solid oxide fuel cells. First, a YSZ electrolyte-based cell with porous YSZ as the support for electrode materials on both sides was prepared. Then electrocatalyst materials were incorporated into the porous Y…
The novel micro–nano composite poly(sodium styrene sulfonate)/poly(allylamine hydrochloride) multilayer microcapsules containing in situ-formed 1-pyrenecarboxaldehyde nanorods were fabricated and characterized. Fluorescence properties and functions of the 1-pyrenecarboxaldehyde nanorods could be effectively manipulate…
We report a bulky mesoporous TiO2 structure fabricated by direct consolidation of mesoporous TiO2 powder. The mesoporous TiO2 powder with an interparticular porosity, which synthesized by a surfactant-mediated sol–gel method, was consolidated by spark plasma sintering at 350–600 °C. A mesoporous structure in the sinte…
This paper describes the development of a new concept in supramolecular assembly of existing functional polypeptides to form diblock-like molecular clusters through complementary hydrogen-bonding interactions, providing a potential route toward design and fabrication of block copolymer-like supramolecular materials.
Abstract The objective of the current investigation consists of testing the interchangeability of polymer solutions used during induction hardening with water – air spraying regarding compressive residual stresses. Gearwheels made of 42CrMo4 steel were induction hardened and subsequently quenched using water–air spray…
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A laser trapping-microspectroscopy technique combined with excitation energy transfer from a fluorescent cationic dye (Rhodamine B, RB+) to a non-fluorescent cationic dye (Malachite Green, MG+) was employed to study pH effects on the diffusion coefficients of MG+ (D(MG+)) in single cation-exchange resin microparticles…
This study reports research related to different preparation methods and characterization of polymer nanocomposites for optical applications. The Eu-ion doped Gd2O3 nanophosphor powder with different nanoparticle content was embedded in the matrix of PMMA. Preparation was carried out by mixing molding (bulk), electros…
A planar ThermoElectric Generator (TEG) containing five thermocouples based on nanostructured metal-oxide elements wired electrically in series and thermally in parallel has been designed and fabricated. The thermoelectric elements consist of ZnO ( n -type) and CuO ( p -type) bundles of quasi-monodimensional nanowires…
Carbon nanotube (CNT) is a promising one‐dimensional nanostructure for various nanoscale electronics. Additionally, nanostructures would provide a significant large surface area at a fixed volume, which is an advantage for high‐responsive gas sensors. However, the difficulty in fabrication processes limits the CNT gas…
Herein, we report the dielectric properties of liquid crystal cells embedded with the nanoparticles of Pd, where each of which is covered with a diffusion cloud. It is shown that an amplification of the capacitors with these media occurs with the gain, A c = 12.5, when the concentration of nanoparticles is 0.3 wt% and…
In this study, two oil–water systems of oleic acid–water and chloroform–water are used as samples. Ultrasound is sequentially irradiated using five ultrasonic transducers at 20 kHz, 0.5 MHz, 1.6 MHz, 2.4 MHz and 4.8 MHz to produce emulsion. The distribution of droplet diameter is measured. The effects of ultrasonic fr…
High strength steel, which often contains a few tens of ppm B, has been used in the automobile industry due to weight reduction for energy savings. If this steel scrap is recycled for producing high strength spheroidal graphite iron castings, the alloying element, B, changes the matrix from pearlite to ferrite. In thi…
Non-covalent functionalization of carbon nanotubes with glycolipid-micelles generated nanocomposites with specific molecular recognition properties towards the lectin Con A through multivalent or cluster-type cooperative binding.
Atomic structure and thermodynamic stability of vicinal MgO surfaces showing monoatomic steps are studied using density functional theory. We extend the general definition of step energy to the case of ledges that are covered by adsorbates. Using this definition, we consider the effect of hydroxylation on the thermody…