Showing papers in "Journal of Solid State Chemistry in 1984"

TL;DR: In this paper, the coordination polyhedra in 43 double salt structures are examined and the differences in the environment around the metal ions are explained using the HSAB concept, and the values of hardness for 25 cations are calculated according to Klopman.

TL;DR: The crystal structures of three lithium titanates by neutron diffraction powder profile analysis were determined in this article, where the lithium partially occupies the highly distorted octahedral interstices in the anatase framework in fivefold-coordination with oxygen.

TL;DR: The geometry of the ideal pyrochlore structure type (8A26B24X64Y, Fd3m) has been examined using a data base of 440 synthetic samples as discussed by the authors.

TL;DR: In this article, the crystal chemistry of the oxides of the general formula A 2 B O 4 with particular reference to the stability of the K 2 NiF 4 structure and the relations between the different structures exhibited by this family of oxides is discussed.

TL;DR: The phase equilibria in the ternary system titanium-aluminum-nitrogen are investigated for two isothermal sections in this article, where α-Titanium dissolves nitrogen and aluminum to a large extent, but no solubility of the third element was detected in any of the binary phases.

TL;DR: In this paper, the tetragonal-T structure of K 2 NiF 4 was studied and the atomic displacements in these distorted phases were discussed and rationalized in terms of the chemistry of the various compounds.

TL;DR: In this article, the luminescence properties of the bismuth compounds Bi2Ge3O9, Bi12MO20, Bi2Al4O9 and PbM2O4 (M = Al, Ga) are reported and discussed.

TL;DR: In this article, the crystal structure of the ordered, distorted perovskite Sr2YRuO6 was refined using time-of-flight powder neutron diffraction data.

TL;DR: The thermal analysis of vanadyl hydrogen phosphate hydrate VOHPO 4 · 0.5 H 2 O has been shown to be topotactic in the presence of inert atmosphere as mentioned in this paper.

TL;DR: Corish et al. as discussed by the authors made a theoretical study of defect clustering in fluorite crystals, focusing on the aggregation processes that can occur beyond the dimer stage which was discussed previously (J. A. Corish, C. R. Catlow, P. W. Jacobs, and S. H. Ong).

TL;DR: The phase diagram for nonstoichiometric ceria was determined from specific heat measurements in the temperature range 320-1200 K and composition range CeO2CeO1.72 as mentioned in this paper.

TL;DR: In this article, X-ray lattice parameter measurements and Rietveld refinements of neutron diffraction data were used to evaluate intracrystalline cation distributions and their variation with quenching temperature.

TL;DR: In this paper, the yttria-stabilized zirconias were investigated by spectroscopic methods using a cationic sublattice in which tetravalent and trivalent cations are statistically distributed.

TL;DR: In this paper, the Ionic conductivity of phases with general formulaLi x Ln 1/3 Nb 1− x Ti x O 3 (Ln =La, Nd) has been determined for materials with a small value of x, i.e., in composition range with a Ln1/3 nbO 3 perovskite related structure.

TL;DR: In this paper, the crystal structure of barium hexaaluminate phase I (Ba 0.79 Al 10.9 O 17.14 ) was determined by single crystal X-ray reflection data.

TL;DR: A series of compounds with the initial composition LaMxAl11O18+x has been studied with x ranging from 0 to 1, and M = Mn, Co, Cu as discussed by the authors.

TL;DR: In this article, electron spin resonance (ESR) spectroscopy was used to detect stable ionic cluster species Na3+4 and Rb 3+4 in dehydrated samples of zeolite Y containing alkali-metal cations.

TL;DR: In this paper, the tracer diffusion coefficient, D∗ O, of oxide ions in LaCoO3 single crystal was determined over the temperature range of 700-1000°C by a gas-solid isotopic exchange technique using 18O tracer.

TL;DR: In this article, the authors investigated the metal-insulator transition in perovskite systems LaNi1-xMxO3 (M = Cr, Mn, Fe, and Co) by transport measurements over the temperature range 12-300 K.

TL;DR: In this paper, the authors used powder neutron diffraction to investigate the structure of the defect pyrochlores Pb2Ru2O6.5 and PbT1Nb2O 6.5.

TL;DR: In this article, the formation of the zirconium-aluminum intermetallic compounds ZrAl3, Zr2Al3 and Zr5Al4 were studied using a Knudsen cell mass spectrometric technique.

TL;DR: Antimony-doped tin(IV) oxide Sn1−xSbxO2 prepared by a high-temperature (1300 K) solid-state synthetic procedure has been studied over the composition range as mentioned in this paper.

TL;DR: In this paper, a detailed investigation on the new series of compounds(MX4)nY (M =Nb, Ta, X =S, Se; Y =Br, I) is given through structural information and resistivity measurements.

TL;DR: Mesures de diffraction RX, calorimetrie differentielle a balayage, RPE, susceptibilite magnetique and conductivite electrique, entre 10 and 300 K, sur des poudres et monocristaux La 2 NiO 4

TL;DR: In this article, a predictive model for the formation of new acid sites in a dilute solid solution of two component oxides is developed by examining the electrostatic potential at the substituting cation site and the changes in the matrix necessary to balance the stoichiometry.

TL;DR: The least square refinement of lanthanum hexaaluminate (La0.827Al11.9O19.09) was performed using single crystal X-ray diffraction data.

TL;DR: In this paper, the structural properties of molybdenum chalcogenides were investigated and the superconducting critical temperatures were shown invariant to changes in nominal composition of 0.8 x T c and a small decrease in c h is observed for the selenides.

TL;DR: In this paper, the reaction mechanism for the lithiation of α-Fe2O3 has been studied at 420°C in electrochemical cells of the type LiAl LiCl, KCl α- Fe 2 O 3.

TL;DR: In this paper, the tracer diffusion coefficient, D∗ O, of oxide ions in LaFeO 3 single crystal was determined over the temperature range of 900-1100°C by the gas-solid isotopic exchange technique using 18 O as a tracer.

TL;DR: In this article, the structure parameters of Fe3C powder samples were determined in the 20 −650°C range both in vacuo and in hydrogen atmosphere, and no significant location of hydrogen atoms in the cell could be detected before the complete decomposition of the powder.