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。
We investigate the events near the fusion interfaces of dissimilar welds using a phase-field model developed for single-phase solidification of binary alloys. The parameters used here correspond to the dissimilar welding of a Ni/Cu couple. The events at the Ni and the Cu interface are very different, which illustrate…
Linear copolymeric polyesters (polyoxoesters) containing thioether functions [poly(3,3'-thiodipropionic acid-co-alpha,omega-alkanediols)] were formed in good yield by esterification of an equimolar mixture of 3,3'-thiodipropionic acid (4-thiaheptane-1,7-dioic acid) and 1,6-hexanediol (weight average molecular mass, M(…
Our recent preparation of dicubyl disulfide (1) revealed some unusual properties concerning the S-S as well as the C-S bonds. In our continuing examination of this novel compound, we investigated its oxidation as well as sulfur insertion reactions. The oxidation process delivers all four possible derivatives, whereas…
By using photoelectron emission microscopy, we systematically investigated the magnetic domain in the La0.6Sr0.4MnO3 patterned thin film with several microns, in which we can control the ratio of a shape anisotropy to a step-induced uniaxial anisotropy in magnitude. We demonstrate that a cooperative effect of a step-i…
<div class="htmlview paragraph">Palladium-based catalyst can be employed for natural gas exhaust clean up due to its high activity for light hydrocarbon oxidation. Unfortunately, trace amounts of sulfur in the natural gas feed severely deactivate the catalyst.</div> <div class="htmlview paragraph">In…
Abstract Mesoporous silica films were synthesized by dip‐coating. In this process, evaporation induced self‐assembly leads to the formation of an ordered pore structure. Two types of films with different optical properties have been found in dependence on the humidity during the synthesis. The synthesis field has been…
Abstract Single crystals of oxidephosphates MTi 2 O 2 (PO 4 ) 2 [M: Fe (dark red), Co (pinkish red), Ni (green)] with edge‐lengths up to 0.4 mm were grown by chemical vapour transport. FeTi 2 O 2 (PO 4 ) 2 and CoTi 2 O 2 (PO 4 ) 2 are isotypic to NiTi 2 O 2 (PO 4 ) 2 . The crystal structure of the latter was previousl…
<div class="htmlview paragraph">In the early years of antifreeze/coolants (1920s &amp; 30s) glycerin saw some usage, but because of higher cost and weaker freeze point depression, it was not competitive with ethylene glycol. Glycerin is a by-product of the manufacture of biodiesel (fatty acid methyl esters)…
Owing to the potential application of Nitinol as an advanced structural material, it is essential to thoroughly understand the deformation and fracture behavior of Nitinol under various loading conditions. The present study explores the fracture behavior of Nitinol under quasistatic and dynamic loading, with emphasis…
Abstract Cell dynamics simulation (CDS) is a very promising approach to model dynamic processes in block copolymer systems at the mesoscale level. It is difficult to implement a real time and experimental‐scale simulation with traditional serial algorithms because of the expensive computation. A parallel, spatial deco…
Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Masatoshi Kitamura, Yasutaka Kuzumoto, Masakazu Kamura, Shigeru Aomori, Yasuhiko Arakawa; High-pe…
We report on the measured electro-optic coefficients of approximately 150 pm/V at 1310 nm and 1550 nm for poled guest-host polymer films made with the chromophore AJ404L. Films were poled using corona poling and parallel-plate poling techniques. The films were fabricated and poled and the electro-optic coefficients me…
A lumped element-based negative index metamaterial (NIM) was designed, fabricated, and tested for operation at 400MHz in the ultrahigh frequency (UHF) band. At 400MHz the measured real part of the index of refraction of this NIM was nreal=−3.11 with a loss that was less than 1dB∕cm using unit cells whose overall size…
Abstract The effects of hot‐air aging and dynamic tensile fatigue on the network structure and dynamic viscoelastic properties of unfilled natural rubber (NR) vulcanizates were investigated with magnetic resonance crosslink density spectrometry, Fourier transform infrared spectroscopy/attenuated total reflection (FTIR…
Abstract LaS 1.9 , CeS 1.9 , PrS 1.9 , NdS 1.9 , and GdS 1.9 : Five new Lanthanide Polysulfides – Syntheses, Crystal Structures and their Structural Relationship to the ZrSSi Type Crystals of the five new lanthanide polysulfides LaS 1.9 , CeS 1.9 , PrS 1.9 , NdS 1.9 , and GdS 1.9 have been prepared by different synthe…
The nonlinear optical coefficients of LiB3O5 (LBO), CsB3O5 (CBO), and CsLiB6O10 (CLBO) crystals have been measured by both the Maker fringe technique and the phase-matching method. With the former technique the coefficients of LBO, CBO, and CLBO crystals have been determined relative to d36 (KDP) at the wavelength 106…
Abstract N,N ‐Di(2‐hydroxyethyl)‐ N ‐dodecyl‐ N ‐methyl ammonium chloride was used as an intercalation agent to treat Na + ‐montmorillonite and form a novel type of organic montmorillonite (OMMT). An OMMT master batch (OMMT‐MB) was prepared by solution intercalation and was used in the preparation of high‐temperature‐…
Abstract The λ 6 Si ‐silicate [K(18‐crown‐6)] 2 [Si(NCO) 6 ] ( 10 ) was synthesized by treatment of Si(NCO) 4 with KNCO in the presence of 18‐crown‐6. Compound 10 ( Si N 6 skeleton) is the first example of a hexa(cyanato‐ N )silicate. It was characterized by solid‐state and solution NMR spectroscopy, and the acetonitr…
Abstract The present paper describes the morphology, taxonomy, and distribution of species belonging to the diatom genera Rhizosolenia s. str., Neocalyptrella, Pseudosolenia and Proboscia, found in the marine coastal waters of Buenos Aires Province, Argentina. The phytoplankton samples were collected from October 1994…
Abstract RbMnO 2 was prepared via the azide/nitrate route. Stoichiometric mixtures of the precursers (Mn 2 O 3 , RbN 3 and RbNO 3 ) were heated in a special regime up to 600 °C and annealed at this temperature for 30 h in specially designed silver crucibles. Single crystals have been grown by annealing a 1:1 mixture o…