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。
It is well known that reduced sulfur species lead to intergranular attack (IGA) of sensitized Alloy 600 at low temperature, however the effect of these species on Alloy 600 at high temperature is not clear. Static autoclave tests were performed to investigate the effect of reduced sulfur (CaS2O3) on the high temperatu…
Effects of organosulfur compounds (thioethers, thiophosphites, and thiophosphates) and organotin compounds as additives on the thermal decomposition of polypropylene were studied. Organosulfur compounds which have electron-donating substituents to sulfur atoms accelerated the thermal decomposition of polypropylene. Ap…
The results of thermal conductivity measurements κ ‘ Turbostratic Boron Nitride in the temperature range 80–380 K are cited. Measurements were carried out on two pressed Boron Nitride samples, for which the degree of three‐dimensional ordering of the given powder is equal to 0.298 and 0.345. For theoretical descriptio…
Abstract At temperatures above the monoclinic‐orthorhombic P 2 1 / c‐Pcmn phase transition at 180°C in terbium pentaphosphate, the presence of a third phase was observed spectroscopically, identified as a C 2/ c monoclinic structure. Two lines at 12 and 17 cm −1 were observed to grow in intensity as the temperature wa…
An NAD dimer analogue, 10,10′-dimethyl-9,9′-biacridine [(AcrH)2] reduces dioxygen much more efficiently than the corresponding monomer, 10-methyl-9,10-dihydroacridine (AcrH2) in the presence of HClO4 and a catalytic amount of CoTPP+(TPP = tetraphenylporphyrin) in acetonitrile to yield 10-methylacridinium ion and hydro…
Methyl fluorochlorobromoacetate was reduced either with lithium aluminium hydride or, better, with diisobutyl aluminium hydride. Work-up in the presence of water gave a mixture of the hydrate and methyl hemiacetal of fluorochlorobromoacetaldehyde. The mixture was dehydrated with phosphorus pentoxide/sulphuric acid to…
Resin concrete has been widely used in machine tool structures in order to improve the dynamic properties, to reduce the lead time of production and to reduce thermal deformation. It has been pointed out, however, that Yung's modulus of the concrete is about one-seventh that of cast iron and is inferior to conventiona…
In direct contact melting, one of the factors that affect the heat transfer is the size of the heat transfer surface. This means that the shorter the path through which the melted liquid between the heat transfer surface and the solid of PCM (Phase Change Material) is rejected outside, the thinner the melted film, whi…
Some of the important static and dynamic properties of elastomers will be examined and some examples will be given to show how they were prioritized in the development of specific applications
A model based on single-ion theory has been presented and is shown to be applicable for quasiternary compounds. The model allows one to obtain from the experimental data information about the contributions to the magnetic properties originating from rare-earth ions at different crystallographic sites as well as on the…
Abstract The light beating technique (intensity correlation algorithm) was employed to analyze the Rayleigh scattering from the roughened Ag electrode in very dilute (10 −4 M) pyrazine, pyridine and piperidine aqueous solutions containing KC1 (0.1 M). The relaxation time is longer when the applied voltages are between…
According to Waser and Pauling the Badger rule on the relation between force constant and interatomic distance in diatomic molecules holds in solids, too. On this basis the stretching mode and the bending mode of the central atom in the unit cells were calculated for boron carbide with good and for β‐rhombohedral boro…
Thermal Physics is written for students studing the core Thermal Physics/Thermodynamics modules(s) at 2nd/3rd year UK undergraduate level. Thermal Physics deals with the transfer of energy to, from an
Abstract Die neuen Supraleiter‐Materialien mit Sprungtemperaturen oberhalb der Siedetemperatur des flüssigen Stickstoffs werden bereits im vierten Jahr nach ihrer Entdeckung im Bereich der Hochfrequenztechnik eingesetzt. Im Hinblick auf Anwendungen in der Magnet‐ und Energietechnik ist jedoch noch einiges an Entwicklu…
Two types of homologous series of superstructures have been found for La 2 NiO 4+ delta containing excess oxygen, i.e. delta >O. They are 2a*ka*1c (k, 1=n or 2n depending upon n) and square root 2a*p square root 2a*qc (most frequently p=2 and q=1), where a*a*c stands for the K 2 NiF 4 -type cell. The origin of these s…
The aim of the present work is to study the densification behaviour and microstructural evolution in zirconia alloyed with 3.4 wt % MgO. A comparison is made of products obtained by conventional mechanical mixing and the wet-chemical method of coprecipitating the constituents as crystallized materials obtained under h…
This paper reviews our research on diamond synthesis by etc plasma jet CVD. The unique feature of this method is supplying high radical density plasma to a substrate by quenching a thermal plasma. The maximum growth rate is 200 μm/h. The crystallinity measures well in terms of x-ray diffraction and Raman spectroscopy.…
Graphite finds applications in both fission and fusion reactors. Fission reactors harness the energy liberated when heavy elements, such as uranium or plutonium, fragment or fission''. Reactors of this type have existed for nearly 50 years. The first nuclear fission reactor, Chicago Pile No. 1, was constructed of grap…
This paper describes a novel route for the production of low-oxygen-containing fluorozirconate glasses. The process involves the use of a hitherto unknown solid-state chemical reaction between ammonium bifluoride and specific anhydrous and hydrated metal fluoride salts. The products are defined as ammonium fluoride–me…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTImprovements in the structure and adhesion of electrodeposited thin film cadmium selenideHenry Wynands and Michael CociveraCite this: Chem. Mater. 1991, 3, 1, 143–149Publication Date (Print):January 1, 1991Publication History Published online1 May 2002Published inissue 1 Jan…