Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Highly axis-oriented V 2 O 5 thin films were fabricated by metal–organic decomposition (MOD) on SiO 2 /Si substrates. V 2 O 5 thin films were reduced to VO x thin films by heat treatment with a temperature of 530–580 °C, pressure of 1.2–3 Pa in O 2 and heating time of 2–5 h. The VO x thin films exhibited an abrupt tra…
Quantum-sized CdS nanorods were synthesized by direct thermal decomposition of a single-source precursor in a monosurfactant system. The CdS nanorods were uniform, had high crystallinity, and exhibited strong quantum confinement effect. The nanorod growth was controlled by an oriented attachment mechanism, and the mor…
BACKGROUND: Magnetic nanoparticles show great promise for use as tools in a wide variety of biomedical applications. The purpose of this study was to investigate the potential effects of methacrylamido-folic acid (Ma-Fol)-modified magnetic nanoparticles on 5RP7 (H-ras-transformed rat embryonic fibroblasts) and NIH/3T3…
Abstract Composite samples (WPVCs) of poly(vinyl chloride) (PVC) and wood flour were prepared in the PVC:wood weight ratio of 1:1, and the mechanical and structural changes of the composites were assessed in terms of UV aging time and condensation temperature. Acrylic coating containing cerium dioxide as a UV absorber…
This work demonstrates that the theoretical framework of complex networks typically used to study systems such as social networks or the World Wide Web can be also applied to material science, allowing deeper understanding of fundamental physical relationships. In particular, through the application of the network the…
Thermally-responsive shape-memory polymers (SMP) are highly promising implant materials for applications in minimally-invasive surgery since the shape-memory effect (SME) enables the implantation of a bulky device in a compressed temporary state through a small incision. When heated to a temperature exceeding the mate…
Mesoporous silica pellets with controllable shape and pore size were prepared using agarose gel templates. Robust (compressive strength of 3.3-25.1 MPa), crack-free silica monoliths have been produced with large mesopores (14-23 nm), high surface areas (410-540 m(2) g(-1)), and large pore volumes (1.1-1.2 cm(3) g(-1))…
Photoinduced electron transfer from the electron-donating zinc tetra-tert-butylphthalocyanine, ZnTBPc , to the electron-accepting dodecafluorosubphthalocyanine, SubPcF 12 , in the polar benzonitrile has been investigated with nanosecond laser photolysis method. The examined ZnTBPc/SubPcF 12 mixture absorbs the light i…
Abstract Calcium carbonate (CaCO 3 )/polystyrene (PS) nanoparticles (<100 nm) with core–shell structure were synthesized by atomized microemulsion technique. The polymer chains were anchored onto the surface of nano‐CaCO 3 through triethoxyvinyl silane (TEVS) as a coupling agent. Ammonium persulfate (APS), sodium d…
Abstract Simulations based on multi‐scale material models enabled by adaptive sampling have demonstrated speedup factors exceeding an order of magnitude. The use of these methods in parallel computing is hampered by dynamic load imbalance, with load imbalance measurably reducing the achieved speedup. Here we discuss t…
Abstract This paper is a choral personal account on a longstanding and fruitful collaboration of organic and inorganic chemists to develop new hybrid polyoxometallic systems. .We explain our motivation and the context of our work that led to polyoxometalates with highly functional and reactive organic groups. Our appr…
A thermal energy harvester using piezo-shape memory alloy (SMA) composite was designed. The main mechanism of such a piezo-SMA composite is the synergistic effect of piezoelectrics and SMA, which are connected in series and subjected to fluctuating temperature. Strain induced in the SMA phase immediately causes stress…
Recombinant protein polymers, evaluated extensively as biomaterials for applications in drug delivery and tissue engineering, are rarely reported as being optically transparent. Here we report the notable optical transparency of films composed of a genetically engineered silk-elastinlike protein polymer SELP-47K. SELP…
Abstract The last decade has see the development of sulfur‐containing polyoxometalates (POTMs) as a subclass of the polyoxometalate family. The structural and physico‐chemical properties of this emerging class of compounds is dominating by the striking coordination properties of the [Mo 2 O 2 S 2 (OH 2 ) 6 ] 2+ oxothi…
Metastable phase was observed in as-solidified microstructure of undercooled Fe-Co alloy, provided that the initial undercooling (T) of the melt exceeds the critical value. On this basis, the forming mechanism and stability of metastable phase were investigated. The forming mechanism of metastable phase in undercoole…
In the region of the A1g6(S6)→A1g4,Eg4(G4) optical transition, the absorption spectrum of the quasi-two-dimensional antiferromagnet MnPS3 has an exciton-magnon structure. It includes a pure exciton line with a wave number of 21223.5cm−1 and an exciton-magnon band with a peak at 21328cm−1 for T=1.7K. The spectra are st…
The electronic structure of TiO2 rutile with oxygen vacancies, which is a promising insulator, has been analyzed. The ab initio density functional calculations, as well as the comparative analysis of the results obtained in the σ-GGA spin-polarized generalized approximation and those obtained by the σ-GGA + U method w…
We demonstrate a noncontact thermal microprobe technique for measuring the thermal conductivity κ with ∼3 μm lateral spatial resolution by exploiting quasiballistic air conduction across a 10-100 nm air gap between a joule-heated microprobe and the sample. The thermal conductivity is extracted from the measured effect…
Abstract The interaction between large metal‐oxide polyanions and their counterions is unique. Owing to their size disparity, there is a moderate ion‐pairing effect and loose distribution of counterions around macroions, which leads to the unique solution behavior and the self‐assembly of the macroions in polar solven…
Abstract Poly(lactic acid) (PLA)/organomontmorillonite (OMMT) nanocomposites were prepared by a melt intercalation technique. The effects of OMMT and poly(ethylene glycol) (PEG) on the thermal properties and water absorption behavior of PLA were investigated. The melting temperature and degree of crystallinity were co…