Materials Literature
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The mechanisms of ultrashort pulsed laser ablation of polycrystalline diamond (PCD) are investigated by means of molecular dynamics simulations. The simulation model provides a detailed atomistic description of the laser energy deposition to the PCD specimen, which is verified by an experiment using 300 fs laser irrad…
We designed and synthesized an amphiphilic conjugated polymer P1 based on the 2,2′-biimidazole unit, and then investigated its sensing properties as an aggregation-based platform. P1 shows multicolor emission in organic solvents at different water contents, and is demonstrated to be the first multicolor fluorescent se…
ABSTRACT A novel ionic crosslinking sodium alginate (SA)/carboxymethylated bacterial cellulose (CM‐BC) composite with a semi‐interpenetrating polymer network (semi‐IPN) structure was developed in this study. The composite was prepared through the blending of an SA gel with CM‐BC then crosslinking by Ca2+ followed by a…
We have studied the coupling of electronic and magnetic properties in Fe${}_{1+y}$(Te${}_{1\ensuremath{-}x}$Se${}_{x}$) via systematic specific heat, magnetoresistivity (MR), and Hall coefficient measurements on two groups of samples with $y=0.02$ and 0.1. In the $y=0.02$ series, we find that the $0.09<x<0.3$ composit…
The subjective evaluation of fabric hand restricts the scientific understanding of the fabric properties and also limits the application of designing engineering principles to develop high-quality fabrics. Hence, an objective hand evaluation system for terry fabric has been devised in this research work. The sensor of…
The three-dimensional textile composites have excellent advantages of impact resistance, owing to their more integral microstructure and higher interlaminar shear strength than those of laminated composites. The composites are frequently used under impact loading in the practical application. Researches on the impact…
We demonstrate a large enhancement of the spin accumulation in monolayer graphene following electron-beam induced deposition of an amorphous carbon layer at the ferromagnet-graphene interface. The enhancement is 104-fold when graphene is deposited onto poly(methyl metacrylate) (PMMA) and exposed with sufficient electr…
Carbon nanotubes (CNTs) were produced by catalytic chemical vapor deposition using, as carbon source, a mixture of hydrocarbons and hydrogen that simulates the effluent gases from pyrolysis of polyethylene (PE). An Fe/Al 3 O 3 catalyst was used in a range of temperatures from 600 to 800 °C. Multiwall carbon nanotubes…
This letter examines a hybrid phosphor structure for white light-emitting diodes. The hybrid phosphor structure produces more efficient luminosity and more uniform angular correlated color temperature (CCT) than the conventional dispensing method. The experimental results show that the CCT deviation improved from 453…
In order to reduce electrical accidents caused by aging of polymer insulators, hydrophobicity evaluation is one of the essential methods to monitor the practical performance of insulators. This paper presents recurrent plot (RP) analysis of leakage current (LC) to evaluate the hydrophobicity of the silicone rubber ins…
This paper presents comprehensive studies on the molecular dynamics of a pharmaceutically important substance, posaconazole. In order to characterize relaxation dynamics in the supercooled liquid and glassy states, dielectric and mechanical spectroscopies were applied. Dielectric data have indicated multiple relaxatio…
PdPt bimetallic nanotubes were prepared by the self-assembly of Pt and Pd on Te nanowires at room temperature. The morphologies of the as-prepared PdPt nanotubes were investigated by scanning electron microscopy and transmission electron microscopy, and the results display a large amount of PdPt bimetallic nanotubes w…
High optical power density of 0.5 mW/cm2, external quantum efficiency of 0.1%, and population inversion of 7% are reported from Tb+-implanted silicon-rich silicon nitride/oxide light emitting devices. Electrical and electroluminescence mechanisms in these devices were investigated. The excitation cross section for the…
High-quality water-soluble N -acetyl- l -cysteine-capped CdTe quantum dots (QDs) have been synthesized through a hydrothermal route, which allows a rapid preparation time (<1 h) and tunable emitting peaks (from 535 to 650 nm) with excellent quantum yields as high as 45%. The influences of different synthetic parameter…
In this paper, the preparation and characterization of an anionic and a cationic surfactant obtained by chemical modifications of a natural bile acid (cholic acid) are reported. The bile acid was modified by introducing a diamine or a dicarboxylic aromatic residue on the lateral chain. The pure cationic surfactant sel…
We study the isovalent substitution effect by partially introducing Se on the S site in the newly discovered superconductor Nb${}_{2}$PdS${}_{5}$ (${T}_{c}\ensuremath{\sim}$ 6 K) whose upper critical field is found to be far above its Pauli paramagnetic limit. In this Nb${}_{2}$Pd(S${}_{1\ensuremath{-}x}$Se${}_{x}$)${…
Wheat gluten can be converted into rigid biobased materials by high-temperature compression molding at low moisture contents. During molding, a cross-linked protein network is formed. This study investigated the effect of mixing gluten with acid/alkali in 70% ethanol at ambient temperature for 16 h followed by ethanol…
Pure quaternary tetraalkylammonium chlorides with one long alkyl chain dissolved in various organic solvents constitute a new class of cellulose solvents. The electrolytes are prepared in high yields and purity by Menshutkin quaternization, an inexpensive and easy synthesis route. The pure molten tetraalkylammonium ch…
Abstract Mesoporous [Al]MCM‐41 materials with nSi/nAl ratios of 15 to 50 suitable for the direct catalytic conversion of phenylglyoxal to ethylmandelate have been successfully synthesized at room temperature within 1 h. The surface areas and pore sizes of the obtained [Al]MCM‐41 materials are in the ranges of 1005–124…
Heterointerfaces between complex oxides have sparked considerable interest due to their fascinating physical properties and their offering of new possibilities for next-generation electronic devices. The key to realize practical applications is the control through external stimuli. In this study, we take the self-asse…