Showing papers in "Journal of Alloys and Compounds in 1992"

TL;DR: The authors reviewed experimental studies in which soluble rare earth metal (REM) salts have been used as corrosion inhibitors and discussed the inhibition mechanisms involved, and showed that they are effective inhibitors of the corrosion of aluminium alloys, steel and zinc.

TL;DR: In this article, a critical assessment of binary R 2 O 3 -Al O 3 systems (RLa, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) has been carried out through the technique of coupled thermodynamic-phase diagram analysis.

TL;DR: In this paper, the Aurivillius phases of ferroelectric complex bismuth oxides have been studied and their crystal chemistry and their chemical stability in relation to the number, m of octahedral sheets within the perovskite-like layers and to various cationic substitutions have been analysed.

TL;DR: In this article, a columnar structure was formed so that the c -axis of the hexagonal structure was oriented parallel to the cooling plane, and the cylindrical sealed cell also showed a very long cycle life (a capacity decay of 6% after 2000 cycles).

TL;DR: In this article, the iron and manganese germanides RT 6 Ge 6 (RSc, Y, Nd, Sm, Gd, TbFe 6 Sn 6) have been investigated by X-ray diffraction and susceptibility measurements in the temperature range 90-900 K.

TL;DR: In this paper, the concept of inductive effect has been extended to solid-state chemistry, which is well known in organic chemistry and has been validated in solid ternary compounds.

TL;DR: In this article, the deoxidation of electrolytically refined titanium wire produced titanium with a high residual resistivity ratio ( ga 298 /α 4.2 ⋍100 ).

TL;DR: In this paper, optical absorption and reflectivity measurements in the spectral range of the 1580 cm−1 phonon were simultaneously fitted by suitable model calculations to determine quantitatively the carbon distribution within the unit cell in the homogeneity range.

TL;DR: In this paper, the ternary silicides RFeSi (R�La-Sm, Gd-Dy) with the tetragonal CeFeSi-type structure (space group, P4/nmm) were investigated by susceptibility measurements and neutron diffraction experiments.

TL;DR: In this article, a number of bulk (manometric hydrogen content measurements, optical microscopy), structural (X-ray and neutron diffraction) and microstructural (scanning and transmission electron microscopy) techniques provide strong evidence that the major part of the observed reduction in hysteresis after activation is due to the formation of extended two-dimensional defects in the alloy.

TL;DR: In this article, the authors conducted thermal degradation studies on hydrides formed by Sn and Gd substituted LaNi s compounds and measured the static room temperature pressure-composition isotherms after 10, 1500 and 10, 000 cycles and after thermal aging to evaluate changes in the properties.

TL;DR: In this article, the authors investigated the properties of the TS2 lattice and found that the subsystems have a common (b ∗, c ∗ ) reciprocal plane.

TL;DR: In this article, the crystal structure and magnetic properties of novel ternary compounds of the composition R 2 (Fe 0.91 V 0.09 ) 17 (R≡Y, Nd, Sm, Gd) were investigated.

TL;DR: The equilibrium concentrations of uranium, neptunium, plutonium, americium, curium, and curium at 773 K have been measured by several researchers who are developing fuel recovery processes for the Integral Fast Reactor as mentioned in this paper.

TL;DR: In this paper, the authors investigated the properties of compact titanium nitride (δ-TiN1-x) within the compositional range TiN0.53- TiN1.00 by a diffusion process and several properties were investigated as a function of composition.

TL;DR: In this paper, it was shown that the polymerizing behavior of the heavy chalcogen anion seems to be much more general than expected and should lead to many charge transfer studies, and a classification of structures taking into account not only the dimensionality but also the polymerization degree of such materials is suggested.

TL;DR: In this article, it was shown that high nitrogen activity may arise from the high instability exhibited by a stream of NH 3, and it may be highly probable that NH 3 also acts as a hydriding agent with high hydrogen activity.

TL;DR: In this paper, the composition and thickness of surface layers formed on LaNi 4.5 Si 0.5 powder electrodes after various pretreatments were analyzed by means of photoelectron spectroscopy.

TL;DR: In this article, the structure of Er2RhSi3 was determined by X-ray single-crystal diffraction (λ(Mo Kα)=0.71073 A, μ=42.037, wR=0.030 for 244 contributing unique reflections).

TL;DR: In this article, the emission parameters for Eu 3+ (Tb 3+ ) complexes with 1-indoleacetylacetone (HL 1), 3-indolabeled e.g., 3-influenced Eu-3+ and Eu 2+ diketones and the energy levels of excited triplet states for the three ligands were determined.

TL;DR: In this paper, the crystal structure of tin phthalocyanine (SnPC) has been determined, and it was found that under the conditions used, gold does not take part in the reaction with 1,2-dicyanobenzene but separates from the alloys.

TL;DR: Mg6Co2D11 as discussed by the authors crystallizes in space group Pnma, a=8.1000(2) A, b=10.0643(2), c = 18.5664(4) A, V = 1513 A 3, Z = 8.62(2).

TL;DR: The Seebeck coefficient was S = −11 μ V K −1 in this case, which compares with S = -320 μ V k −1 measured on Hall n-type samples as discussed by the authors.

TL;DR: X-ray structure analysis reveals that Re 6 S 8 Br 2 is isostructural to Re 6 Se 8 Br2 as mentioned in this paper, and both semiconducting cluster materials were photoelectrochemically characterized and showed p-type behaviour.

TL;DR: In this paper, the phase transition of Eu 2 O 3 under pressure from a C-type b.c. structure to a B-type monoclinic structure was investigated by the luminescence spectra of the Eu 3+ ion.

TL;DR: The authors showed that the Cadmium distribution is not strictly randomized between the two crystallographic cationic sites in the apatitic structure of hydroxyapatite and fluoraphatite.

TL;DR: In this article, the phase diagram for the Al-Cr system has been experimentally revised and the main features of the diagram in the literature have been confirmed, taking account of these findings and literature data.

TL;DR: In this article, the authors reviewed the properties of the Y 1-x Pr x Ba 2 Cu 3 O 7- δ ( δ ≈ 0.05) system with a rich temperature-praseodymium concentration (T - x ) phase diagram consisting of a metal-insulator transition at x cr ≈0.6, high T c superconductivity in the metallic phase (0⩽ x ≤ x cr ), and antiferromagnetic ordering of the Cu 2+ and praseodynium ions at Neel temperatures T N (

TL;DR: In this paper, a systematical investigation of a series of interstitially doped B:Fe solid solutions of the β-rhombohedral boron structure with compositions up to FeB29.5, which is close to the maximum solubility, is presented.