On the conformations of lactone rings
Abstract
Materials Literature
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Reverse photocharomism of stenhouse salts
It has been found that Stenhouse salts show reverse photochromism.
The Mode of Plastic Deformation of β Ti–V Alloys
Deformation modes of quenched β Ti–16∼27%V alloys are investigated in compressive and tensile tests as a function of crystallographic orientation and deformation temperature. The {332} twinning takes place in the low vanadium content alloys. By analysing the twinning systems appearing in compressive and tensile tests,…
The Electrochemical Determination of Diffusivity and Solubility of Hydrogen in an Austenitic Type 304 Steel
An investigation of diffusivity and solubility of hydrogen in both annealed and as-cold-rolled specimens of an austenitic Type 304 steel has been carried out at room temperature by means of an electrochemical permeation method. Especially, the effect of formation of the “foreign phases”, such as hydride phases (γH, εH…
Effects of lime on effective cation exchange capacity and exchangeable cations on a range of New Zealand soils
Abstract The effect of lime on the effective cation exchange capacity (ECEC) and exchangeable cations of 18 New Zealand topsoils was measured. Liming increased ECEC on all soils and the change in ECEC per unit change in pH followed the order yellow‐brown loams > northern and southern yellow‐brown earths > centra…
Tarnishing of Silver by Organic Sulfur Vapors: Rates and Film Characteristics
The rate of formation of tarnish films on silver coupons by vapors generated from organic sulfur compounds, especially dimethyldisulfide, has been measured at room temperature at both high and low relative humidity. The results for freshly cleaned silver coupons, as determined by cathodic reduction methods, indicate t…
Crystallographic and Morphological Studies on the <I>FCC</I> to <I>FCT</I> Transformation in Mn–Cu Alloys
The FCC to FCT transformation in Mn–22 at% Cu and –26 at% Cu alloys has been examined by means of X-ray diffraction and optical and electron microscopies with a cooling stage. The c parameter and the c⁄a ratio of the FCT martensite decrease with decreasing temperature, abruptly below the transformation temperature and…
Fatigue and Fracture Characteristics of Polycrystalline Cu–Al–Ni Shape Memory Alloys
The fatigue and fracture characteristics of polycrystalline Cu-Al-Ni shape memory alloys have been investigated by examining the effect of quenching condition on intergranular cracking, by tensile and fatigue testing and by observing fracture surfaces. The tensile and fatigue tests have been carried out for three defo…
Analytical chemistry of fast reactor fuels - A review
Abstract
Synthesis and structural characterization of [Au9{P(p-C6H4OMe)3}8](BF4)3; a cluster with a centred crown of gold atoms
The single crystal X-ray analysis of [Au9{P(p-C6H4OMe)3}8]-(BF4)3; has provided the first example of a cluster compound with a metal atom incorporated into the centre of a puckered ring of like metal atoms.
Corrosion resistance of austenitic Fe-Cr-Ni-Mo alloys in marine environments
The corrosion resistance of commercial austenitic alloys in the Fe-Cr-Ni-Mo system in marine environments has been reviewed. The types of corrosion examined include intergranular corrosion, stress-corrosion cracking, corrosion fatigue, pitting, crevice corrosion, galvanic corrosion, cavitation damage, and erosion-corr…
Temperature and water induced softening behaviour of wood fiber based materials
The composite structural material comprising paper and wood is analysed in terms of thermal softening and hygroplasticization with regard to its constituent polymers. In particular, an attempt is made to relate the softening occurring under dry conditions to that occurring under moist conditions. It is proposed that t…
Steric effects in metal cluster compounds
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteric effects in metal cluster compoundsD. M. P. MingosCite this: Inorg. Chem. 1982, 21, 1, 464–466Publication Date (Print):January 1, 1982Publication History Published online1 May 2002Published inissue 1 January 1982https://pubs.acs.org/doi/10.1021/ic00131a094https://doi.o…
Classification of the mesophase of di-isobutylsilanediol
The thermotropic liquid crystal mesophase formed by di-isobutylsilanediol has been known for over twenty-five years, but its nature and structure have remained uncertain and the physical characteristics of the phase appeared unique and quite different from those of any other recognised type of liquid crystal. In a pre…
New aspects of the chemistry of nonbenzenoid polycyclic conjugated π-electron systems
Abstract
Clay mineralogy of weathering rinds and possible implications concerning the sources of clay minerals in soils
Research Article| July 01, 1982 Clay mineralogy of weathering rinds and possible implications concerning the sources of clay minerals in soils Steven M. Colman Steven M. Colman 1U.S. Geological Survey, Denver Federal Center, Denver, Colorado 80225 Search for other works by this author on: GSW Google Scholar Geology (1…
Melting temperatures of refractory oxides: Part I
Published Online: 2009-01-01 Published in Print: 1982-01-01 © 2013 Walter de Gruyter GmbH, Berlin/Boston
Hydrolysis of Elemental Sulphur in Water and its Effect on the Corrosion of Mild Steel
The acidity developed by elemental sulphur when mixed with neutral water has been studied by measurements of the variaiion of pH with changes in the ratio of the solid sulphur to water and the effect of the presenece of metallic iron. The results obtained have been shown to extend the data reported at high temperature…
The derivative structure of silicate garnets in grandite
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Irreversibility of cyclic slip in persistent slip bands of fatigued pure f.c.c. metals
Parallel screw dislocations performing cyclic slip are considered. Plastic resolved-shear-strain amplitudes γpl below a certain limit γpl,s can be accomplished by a static dislocation density, i.e. by the reversible to-and-fro motion of the screw dislocations. If γpl ≥ γpl,s, steady-state cyclic deformation requires t…