Materials Literature
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A diffusion rolling procedure was employed for the fabrication of Al–Cu laminated composites; the microstructure and mechanical properties of the interface were investigated. With diffusion bonding initially, intermetallic compounds (IMCs) occurred at the Al/Cu interface. After plastic deformation by rolling the lamin…
Multilayered TiN coating, with a microstructure of stackered up sandwiches, was successfully prepared by hollow cathode discharge method. The columnar epitaxial growth was obviously suppressed by introduction of the multilayered microstructure in the coating. The adhesion and wear resistance of the multilayered TiN co…
The influence of B on the hot ductility of high Al, Ti containing twinning induced plasticity (TWIP) steels has been examined. It was established that provided the B was fully protected by adding sufficient Ti to combine with all the N, then B could segregate to the austenite grain boundaries and improve ductility. Th…
A Reply to the Comment by I. A. Lyashenko et al.Received 8 October 2013DOI:https://doi.org/10.1103/PhysRevLett.111.189402© 2013 American Physical Society
The effect of super atmospheric O2 packaging on the quality and physiological character of cherry fruits in Wenchuan County in Sichuan province was investigated at 4C and at a relative humidity of 70 ± 1%. The results showed that, compared with control (air packaging), super atmospheric O2 packaging effectively delaye…
Exciton spectra are studied in Cu2ZnSiSe4 single crystals at 10 and 300 K by means of reflection spectroscopy. The exciton parameters, dielectric constant and free carriers effective masses are deduced from experimental spectra by calculations in the framework of a model taking into account the spatial dispersion and…
Polymethylmethacrylate (PMMA) and functionalized multiwalled carbon nanotube (F‐MWCNT) based composite films were prepared using solution casting method. Nanoindentation and scratch measurements were carried out to study the influence of F‐MWCNT as the reinforcement on the mechanical properties of the composite at the…
The self-absorption technique is a simple method to determine the line integrated density of metastable atoms in low-pressure plasmas. In order to employ this technique, it is necessary to make an assumption on the spatial profiles of both the emission intensity and the absorbing species, which usually are unknown and…
RATIONALE: An experimental Isobar Separator for Accelerator Mass Spectrometry (ISAMS) instrument has been used to demonstrate an on-line separation of HfF5(-) from its isobar WF5(-). This is necessary, in addition to sample preparation chemistry, for measuring (182)Hf at natural levels by Accelerator Mass Spectrometry…
Austenite grain structure has been studied over a wide range of soaking temperatures (950–1250°C) in a high strength low alloy steel containing Nb, Ti and V for different starting conditions, namely as cast, hot rolled and thermomechanical controlled rolled. Mixed (or bimodal) austenite grain structures were developed…
The data on strain-induced softening of glassy and crystalline polymers accompanied by development of the capability of high reversible strains in the samples are analyzed. It is shown that in the first strain cycle, the test sample demonstrates properties typical of glassy or crystalline state, whereas repeated stret…
Biaxially stretched composite polyethylene naphthalate (PEN) films (BSCPF) embedded with submicron lithium fluoride (6LiF) particles and luminescent molecules were fabricated to make large area scintillation films (≈1 m × 1 m) for thermal neutron detection. BSCPF had 20.2% higher neutron light yield as compared to uns…
We present a coarse-grained Monte Carlo method designed for the simulation of vacancy-mediated diffusion phenomena. A coarse-grained master equation is derived from the atomic scale master equation using an assumption of local equilibrium within each coarse-grained cell. Atomic kinetic Monte Carlo (AKMC) simulations a…
We have used molecular dynamics simulations to study the structure and nonlinear vibrational spectra of a face-wise amphipathic α-helical peptide when adsorbed onto hydrophobic, neutral, and charged hydrophilic surfaces from the solution state. Visible-infrared sum-frequency spectroscopy is a powerful probe of interfa…
The Electrochemical Atomic Layer Deposition (ECALD) methodology has been recently employed to synthesize thin films of ternary Cu-Zn sulfides, technologically relevant for photovoltaic semiconductors. This approach, which represents probably the first successful synthesis of a ternary Cu-Zn sulfide, consisted in alter…
An improvement in the power conversion efficiency (PCE) of the inverted organic solar cell (ITO/nc-TiO2/P3HT:PCBM/PEDOT:PSS/Ag) is realized by depositing CdS quantum dots (QDs) on a nanocrystalline TiO2 (nc-TiO2) film as a light absorption material and an electron-selective material. The CdS QDs were deposited via a c…
Fluorescence resonance energy transfer in complexes of semiconductor CdSe/ZnS quantum dots with molecules of heterocyclic azo dyes, 1-(2-pyridylazo)-2-naphthol and 4-(2-pyridylazo) resorcinol, formed at high quantum dot concentration in the polymer pore track membranes were studied by steady-state and transient PL spe…
Copper indium diselenide (CIS) nanoparticles were synthesized using a microwave‐assisted one‐pot solvothermal approach. For these studies high microwave‐absorbing precursors were used in combination with low microwave absorbing solvents tri‐n‐octylphosphine (TOP) and oleic acid (OA) to investigate the effect of select…
Organic charge-transfer salts based on the molecule Pd(dmit)${}_{2}$ display strong electronic correlations and geometrical frustration, leading to spin-liquid, valence bond solid, and superconducting states, among other interesting phases. The low-energy electronic degrees of freedom of these materials are often desc…
Achieving a pinhole-free CdS layer is necessary to produce high performance thin film CdTe solar cells. Pinholes in the CdS layer can compromise the efficiency of a CdTe solar cell by causing shunts. We have investigated the use of a plasma treatment of a fluorine doped tin oxide coated glass substrate (NSG TEC 15) an…