Materials Literature
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In Wyoming Bentonite the ion-exchange reactions for the homovalent pairs Ag(en)+2–Cs+ and Cu(en)2+2–Ca2+ and for the heterovalent pair Ag(en)+2–Cu(en)2+2 are characterized by ΔG⊖ values of exchange which are very much larger than those for the aqueous metal ions. These effects, which emphasize the importance of ion–li…
Abstract Development of crystallizers . The control of the crystallization kinetics and the spatial variation of the crystal mass are of decisive importance for the operation of industrial crystallizers. The influence of micro‐ and macro‐attrition is demonstrated with particular reference to collisions with impeller b…
The paper describes the properties of a high strength precipitation hardened wrought cupro-nickel alloy suitable for high integrity components, particularly in marine environments.
An apparatus has been developed for creep rupture testing in high-pressure hydrogen up to 49.1 MPa at elevated temperatures up to 873 K. The apparatus is designed to facilitate the measurement of the actual load on the specimen with an external load cell irrespective of axial load caused by high pressure in the vessel…
Cabrerite, (Ni₂.₂ Mg₀.₇ Fe₀.₁)(AsO₄)₂ • 8 H₂O, from Laurium (Greece), crystallizes in space group C2/m, with a = 10.211(6), b = 13.335(3), c = 4.728(3) Å, β = 104.97°, Z = 2. The crystal structure of cabrerite had been refined starting from the parameters of vivianite. Anisotropic least squares refinement (R = 0.046),…
This paper evaluates the resistance to intergranular stress-corrosion cracking (IGSCC) in the boiling water reactor of several grades and compositions of austenitic stainless steel castings. A specific objective of this work was to predict the performance of Alloy Casting Institute CF3, CF3A, and CF8 castings in nucle…
By means of X-ray diffraction method, we determined the lattice parameters and phase transition temperatures of specimen of K0.5Bi0.5TiO3—Na0.5Bi0.5TiO3 system with varions components, as well as the component of the boundary between tetragonal and rhombohedral forms. The X-ray powder diffraction data of K0.5Bi0.5TiO3…
Abstract The effect of chloride ions on the corrosion behaviour of binary iron‐nickel alloys in sulphuric acid solutions has been investigated using polarization resistance and potentiodynamic polarization measurements. A moderate inhibition effect of the chloride ions on the corrosion of these alloys has been found,…
Specific heat capacity measurements were made in a differential scanning calorimeter on a series of eight crosslinked epoxy/diamine polymers over a range of temperatures chosen, for each polymer, to include the glass transition. The tabular data at 5°C intervals was then fitted to a five-parameter empirical equation t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of [I3Cl2]+[SbCl6]- and its characterization by x-ray crystallography and Raman spectroscopyThomas Birchall and Ronald D. MyersCite this: Inorg. Chem. 1982, 21, 1, 213–217Publication Date (Print):January 1, 1982Publication History Published online1 May 2002Publis…
The interaction of displacement damage and transmutant helium is thought to be an important factor in the evolution of cavity microstructures. A plausible sequence of events involves the growth of bubbles to a critical size or critical number of helium atoms. Above this critical size, determined by the local point def…
Thermoluminescence (TL) and deformation luminescence (DL) studies in KC1 γ-irradiated at room temperature are reported. The roles that F-centres and their higher conglomerates on the one hand, and V2- and V3-centres as recombination centres on the other hand, play in these processes are specified. Two peaks at 2.5 eV…
Abstract Induction periods for the precipitation of CaSO 4 .2H 2 O in the concentration range 0.05‐lM have been determined by the stopped‐flow method utilising changes in the solution conductivity after nucleation and growth. The measured induction periods were insensitive to calcium sulphate concentration, suggesting…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpectroscopic study of a series of iron carbido clustersB. A. Sosinsky, N. Norem, and J. ShellyCite this: Inorg. Chem. 1982, 21, 1, 348–356Publication Date (Print):January 1, 1982Publication History Published online1 May 2002Published inissue 1 January 1982https://pubs.acs.o…
Liquid-liquid equilibria were determined in the following binary systems: 1,2-ethandiol/toluene, 1,2-ethandiol/xylene, 1,2-propandiol/toluene, 1,2-propandiol/xylene, 1,4-butandiol/toluene, 1,4-butandiol/xylene, 1,3-butandiol/toluene, 1,3-butandiol/xylene, 1,3-butandiol/ p -xylene, 2,2'-dioxydiethanol/toluene, 2,2'-dio…
Transitions between phases II, III and IV of ammonium nitrate are studied in some detail using microscopy, dilatometry, electrical conductivity and differential scanning calorimetry (d.s.c.). Clear evidence of a two-step IV–III transformation is presented and the competition between phase transitions IV–II and IV–III–…
The diffusivity and solubility of hydrogen in both annealed and as-cold-rolled copper were determined at room temperature by means of the electrochemical permeation method under the galvanostatic charging condition. Results obtained were as follows:(1) The observed build-up transient of hydrogen permeation through Cu…
ESR spectra of paramagnetic Pb3+ with 6s1 electronic configuration induced by γ-irradiation at 77K were measured for a wide variety of oxide glasses. It has been found that the Pb 6s-character of the magnetic electron, evaluated from the analysis of the hyperfine structure due to a 207Pb nucleus (nuclear spin 1/2, abu…
The crystal and molecular structure of the title compound has been determined from single-crystal X-ray diffraction data and refined to a final R value of 0.053 using 2 514 independent reflections. The compound belongs to the space group P42/n of the tetragonal system with two tetrameric molecules in a unit cell of di…
High-momentum-resolution neutron and x-ray scatterings have been carried out on recently grown ${\mathrm{Nb}}_{3}{\mathrm{Sn}}_{1\ensuremath{-}x}{\mathrm{Sb}}_{x}$ single crystals. It was shown that, in addition to the well-known cubic-to-tetragonal martensitic phase transition at ${T}_{M}$, another phase transition t…