Materials Literature
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Abstract We demonstrate reversible RGB‐color photocontrol of a chiral nematic liquid crystal (N*LC) by using newly synthesized closed‐ and open‐type chiral dopants. The photoswitching elements in the dopants are azobenzene units on axially chiral binaphthyl cores. Owing to cis – trans photoisomerization of the azobenz…
Abstract The influence of annealing on mechanical α c ‐relaxation of isotactic polypropylene ( i PP) is investigated. In the sample without annealing, polymer chains in the intermediate phase are constrained by crystallites with a broad size distribution, leading to one α c ‐relaxation peak with activation energy ( E…
The water cooled ceramic breeder (WCCB) blanket employing pressurized water as a coolant is one of the breeding blanket candidates for the China Fusion Engineering Test Reactor (CFETR). Some updating of neutronics analyses was needed, because there were changes in the neutronics performance of the blanket as several s…
-glyco lide] (PLGA)/collagen nanofibers. An electrospinning technique was employed to fabricate the multi-layer biodegradable drug-eluting nanofibers. After fabrication, the nanofibrous membranes were characterized. The drug release characteristics were also investigated. In addition, the in vivo efficacy of nanofiber…
Organized into a two-part structure aimed at readers of differing experience levels, Geometry of Crystals, Polycrystals, and Phase Transformations is accessible to both newcomers and advanced researchers within the field of crystallography. The first part of the text covers what any reader in the material sciences, ph…
Abstract Ion diffusion rate and contact surface area of conducting polymers increased by composite formation with nanometric‐size materials make them promising materials in the fabrication of energy storage devices. In this work, electronically conducting polyaniline and manganese oxide ( PANI /MnO 2 ) nanofibrous com…
Photocatalytic response of as-quenched and heat-treated 2Bi2O3-B2O3 glasses was studied. X ray diffraction reveals that the controlled heat treatment of glasses at 380 °C for 1 h, 2 h, and 3 h shows the formation of Bi4B2O9 crystals embedded in 2Bi2O3-B2O3 the host glass matrix. Scanning electron microscopic images re…
An efficient silicon dioxide (SiO2) microcapsule was synthesized and used for flame-retardant polyurethane foams. The polyurethane/25 wt% SiO2 microcapsule composites achieved a limiting oxygen index value of 34.8% and UL-94 V-0 rating, and SDR was significantly reduced. TG, Py-gas chromatography–mass spectrometry, en…
This work focus on the oxidation states of nickel in NdNiO 3, Nd 2 NiO 4, and NiO x thin films deposited by reactive magnetron sputtering. Thin films with a high Ni 3+ content have been reached in the ternary oxides using a soft subsequent annealing in air. In order to understand the presence of Ni 3+ oxidation state,…
The nanocomposite films of poly vinylpyrrolidone (PVP) with different amounts viz., 2, 4, 6 and 8 wt% of cesium aluminate (CsAlO2) have been fabricated using solvent casting technique. The effect of nanofiller content on the optical properties of PVP/CsAlO2 nanocomposite films has been established by UV-visible spectr…
The marine diatoms Thalassiosira proschkinae and T. spinulata are relatively small in size; their taxonomic identities have been debated owing to the diverse morphological variations. In the present study, we isolated both morphotypes from Korean coastal waters and examined their fine structures and conducted molecula…
The methanolic extract of Peumus boldus (P. boldus) has been studied as a potential green corrosion inhibitor for carbon steel in 0.5 M H2SO4 using gravimetric, potentiodynamic polarization and electrochemical impedance spectroscopy tests at 25, 40 and 60°C, and concentrations of 0, 0.1, 0.3, 0.5, 0.7 and 1.0 g/L. Res…
We report a study of the temperature-dependent electrical resistivity, Seebeck coefficient, thermal conductivity, specific heat, and $^{27}\mathrm{Al}$ nuclear magnetic resonance (NMR) in Heusler-type ${\mathrm{Ru}}_{2}\mathrm{TaAl}$, to shed light on its semimetallic behavior. While the temperature dependence of the…
Low-temperature polarized and time-resolved photoluminescence spectroscopy in high magnetic fields (up to 30 T) has been used to study the spin-polarization, spin-relaxation, and radiative lifetimes of excitons in wurtzite semiconductor (e.g., CdSe) colloidal nanocrystals. The applied magnetic field leads to a signifi…
Abstract We report an affordable wet chemical route for the reproducible hybrid graphite-diamond nanowires (G-DNWs) growth from cysteamine functionalized diamond nanoparticles ( ND-Cys ) via pH induced self-assembly, which has been visualized through SEM and TEM images. Interestingly, the mechanistic aspects behind th…
Most of the HV power equipment with gas–solid insulation suffers a lot from the surface charge accumulation due to corona discharge. The existence of surface charge distorts the local electric field and leads to surface flashover faults in extreme situations. As a result, it is important to figure out the mechanism of…
The problem of mixed mode (I+III) brittle fracture of polycrystalline graphite is investigated systematically here for the first time. The present study considers cylindrical specimens weakened by circumferential notches characterized by different acuities. A new complete set of experimental data is provided consideri…
In the present study alginate-starch blend films (thickness 0.08 mm) of different composition were prepared by casting and their mechanical properties were studied. Highest tensile strength was obtained for alginate: starch = 4: 1 of 70 MPa. To impart antimicrobial property to the alginate-starch films, citric acid of…
Previously, we have proposed a relationship between the adsorption modes of a simple molecule (NO) and the behavior of the nanometer-scale monometallic clusters after this adsorption. More precisely, a set of experiments seems to show that dissociative adsorption of NO leads to the sintering of nanometer-scale metalli…
The comprehensive study of waste industrial and automotive plastics [polypropylene (PP), polyethylene (PE), polystyrene (PS), ethylene-propylene copolymer (E/P), thermoplastic elastomer based on the ethylene–propylene–diene terpolymer and polypropylene (PP/EPDM)] thermolysis processes with 0%, 10%, and 25% of equilibr…