Materials Literature
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Abstract Both burn rate, u (mm s −1 ) and mass consumption rate, $\rm{\dot m }$ (g s −1 cm −2 ) of fuel rich magnesium/Teflon/Viton ® (MTV) (45/50/5) upon addition of silicon/ferric oxide for part of the PTFE decrease by 16 and 11%, respectively. However, the spectral efficiency E β (J g −1 sr −1 ) increases by 24% in…
We have successfully experimentally integrated graphene interconnects with commercial 0.25µm technology CMOS ring oscillator circuit using conventional fabrication techniques, and demonstrated high speed on-chip graphene interconnects that operates above 1GHz.
Abstract The composition and particle morphology of diagenetic mixed-layer illite-smectite (I-S) in the shallow buried Ordovician Kinnekulle K-bentonite were studied to understand the process of illitization in the Baltic Basin. The same K-bentonite bed from 12 different locations in the Basin was sampled and analysed…
Maxwell's displacement current is addressed in the most basic of terms, starting from Coulomb's law. The aim of this approach is to shed new light on some questions that have dogged the concept, and to help understanding of the key issues involved, in particular, cause and effect, common origin of induced magnetic fie…
This paper studies the nonlinear vibration of a single-walled carbon nanotube (CNT) embedded in a polymer matrix aroused by van der Waals (vdW) forces using elastic beam models. The interfacial vdW forces are described by a nonlinear function in terms of the deflection of the CNT. According to different beam end condi…
Abstract Equal-channel angular pressing is an effective tool for producing exceptional grain refinement in bulk polycrystalline metals. Typically, processing in this way refines the grains to the submicrometer level in a wide range of metals but recent experiments have established that the mechanism of grain refinemen…
In a wide variety of high-power pulsed devices, vacuum surface flashover plays a key role in the system performance. High-speed electrical measurements with temporal resolution in the nanosecond range were employed to measure the flashover characteristics, and high-speed three-frame photography was used to image the f…
Abstract Stable aqueous dispersions of silver (Ag) nanoparticles were prepared by reducing silver nitrate solutions with sodium borohydride (NaBH 4 ) in the presence of waterborne polyurethane as a stabilizing agent. WPU/Ag nanocomposites were obtained after evaporating water. Transmission electron microscope (TEM) sh…
Nanoassemblies are formed via self-assembly of ZnS capped CdSe quantum dots (QD) and perylene bisimide (PBI) dyes. Upon assembly formation the QD photoluminescence is quenched, as can be detected both via single particle detection and ensemble experiments in solution. Quenching has been assigned to FRET and NON-FRET p…
The respective and combined effects of applied electric field and axial compressive stress on the rhombohedral-to-orthorhombic (R-O) phase transformation in d32 cut [011]-poled PMN-(28–32)%PT single crystals have been investigated. The axial compressive stress in the [100] length direction is found to reduce the R-O t…
Today the domains of life-respecting, degradable therapeutic materials and devices are among the most attractive areas in polymer science. Increasing attention is being paid to polymeric compounds that can be bioresorbable, i.e., degradable and ideally excreted or bio-assimilated - suitable to treat human diseases or…
Small- and wide-angle X-ray scattering in solution reveals that chlorophyll (Chl) trefoils self-assemble in the presence of 1,4-diazabicyclo[2.2.2]octane (DABCO) to yield supramolecular cyclic trimers. Two Chls of each trefoil coordinate to DABCO to form the vertices of the hexagonal structure, while the remaining Chl…
Magnetic and structural properties in multifunctional FSMA (Ferromagnetic Shape Memory Alloys) belonging to Heusler family are frequently related to the occurrence of structural modulation in martensitic phases. The highest MFIS (Magnetic Field Induced Strain) effect has been observed in Ni-Mn-Ga alloys showing marten…
A model is discussed for magnetoelectric (ME) coupling in a nanobilayer of ferromagnetic and piezoelectric phases on a substrate. The theory is applied to a specific case, nickel ferrite and lead zirconate titanate bilayer on strontium titanate substrate. Both low-frequency coupling and ME interactions at frequencies…
Abstract The preparation and characterization of intercalated kaolinite is important for industries such as those using nanocomposites, but the number of compounds that can be intercalated into these clay minerals is rather limited. The purpose of this study was to expand the range of possible intercalants by developi…
Abstract: The latest development of protein engineering allows the production of proteins having desired properties and large potential markets, but the clinical advances of therapeutical proteins are still limited by their fragility. Nanotechnology could provide optimal vectors able to protect from degradation therap…
Ba ( Ti 1-x Zr x ) O 3 ; BTZ (x = 0.20 and 0.25) ceramics are attractive candidates for dynamic random access memories, tunable microwave devices and capacitors. In this study, the preparation of BTZ powders and ceramics fabricated by the combustion method were studied in detail. The calcination and sintering conditio…
The total and hole (p-type) conductivities are measured in the BaZr1 − x Y x O3 − α system (x = 0.02−0.20) in the temperature range of 600–900°C as a function of air humidity (pH2O = 0.04−3.17 kPa). The model of defect formation in BaZr1 − x Y x O3 − α oxides in the presence of water vapor is discussed and the literat…
The Shark Skin Effect (A Lang) Lotus Effect: Superhydrophobicity and Self-Cleaning (M Nosonovsky & E Bormashenko) The Moth-Eye Effect - From Fundamentals to Commercial Exploitation (A Gombert & B Blasi) The Gecko Effect: Design Principles of the Gekkotan Adhesive System Across Scales of Organization (A Russel & M John…
In this paper we show how numerical and analytical modeling of graphene-based devices is used to consider possible approaches to engineer a gap in graphene and to evaluate the perspectives of different technological options towards graphene nanoelectronics.