Showing papers in "Journal of Solid State Chemistry in 1982"

TL;DR: In this paper, the anatase and rutile phases of polycrystalline titanium dioxide using an argon ion laser as exciter were recorded at room temperature for the first-order Raman spectra.

TL;DR: The X-ray and neutron structures of polycrystalline Ca 2 MnO 3.5 by Rietveld analysis have been determined as mentioned in this paper, and the relationship between the CaMnO 3 /CaMnNO 2.5 structures is discussed.

TL;DR: A series of new phases, A2BaCuO5 (A = Y, Sm, Eu, Gd, Dy, Ho, Er, Yb), has been isolated as mentioned in this paper.

TL;DR: In this paper, a single-crystalline β Ga2O3 was studied by Raman spectroscopy between 10 and 1000K and a complete valence force field was obtained.

TL;DR: In this paper, the precursors CaMnO 3 and Ca 2 MnO 4 were reduced with any one of a variety of inorganic (H 2, NH 3 ) or organic (C 2 H 4, C 3 H 6 ) reducing agents between 300 and 500°C.

TL;DR: In this paper, two oxydes doubles, K 4 Nb 6 O 17 and K 2 Rb 2 Nb6 O 17, 5H 2 O, ont ete synthetises en monocristaux.

TL;DR: In this article, the authors presented alternating current electrical conductivity (σ) data for AgIAl2O3, AgI-SiO2 and fly ash, as a function of composition, temperature, and frequency.

TL;DR: Li4P2S6 as discussed by the authors is an extension of P2S2S7, and it is known as Li4P3S6, Li4S4−6, 6H2O and MIIPS3.

TL;DR: In this paper, the conductivity of Li 2+2 x Zn 1− x GeO 4 (−0.36 x + ion conductors) was measured over the temperature range ∼25 to 300°C.

TL;DR: Li/sub 2/SnO/sub 3/ and Li/sub 1/ZrO/Sub 3/ have been refined with the Reitveld method.

TL;DR: In this paper, the structure of the ordered, superstructural phase of Ga 2 Se 3 is found to be different from the structures stated in the literature up to now, which relates essentially to the structure distortion involved in the formation of the superstructure.

TL;DR: In this article, the crystal structures of LiReO 3 and Li 2 ReO 3, obtained by Li insertion into ReO3, were determined by neutron diffraction powder profile analysis.

TL;DR: Tveitite is an ordered yttrofluorite mineral with an abnormally high yttrium plus rare-earth content, and the structure is strongly fluorite-related as discussed by the authors.

TL;DR: In this paper, lead-based fluoride glasses of the system PbF 2, GaF 3, and M F 2 (M = Zn or Mn) doped by trivalent erbium were prepared by melting and quenching of the appropriate fluorides under inert atmosphere.

TL;DR: In this article, X-ray diffraction, density, and electrical conductivity measurements were performed on the perovskite-like mixed oxide La0.84Sr0.16MnO3.

TL;DR: The phase relationship of the ternary combinations {Ti, Zr, Hf, V, Nb, Ta, Cr, Mn, and Ni}-aluminum-carbon was investigated in this article.

TL;DR: In this article, the crystal structures of the following trihalides are discussed and classified in structural types: AsF3, SbF3 and BiI3, and AsCl3 liquids at room temperature.

TL;DR: In this article, the electrical conductivity of polycrystalline CaTiO3 was measured over the temperature range 800-1100°C while in thermodynamic equilibrium with oxygen partial pressures from 10−22 to 100 atm.

TL;DR: In this article, the synthesis of HNbO 3 and HTaO 3 via ion exchange in hot aqueous acid solutions is reported, which is accompanied by a topotactic structural transformation from the rhombohedral LiNb O 3 structure to the cubic perovskite structure.

TL;DR: In this paper, the phases occurring in the binary tungsten-oxygen system in the composition region WO 3 WO 2 have been clarified by electron microscopy and powder X-ray diffraction in the temperature range from 723 to 1373 K.

TL;DR: In this article, the possibility of designing an active support for dispersed Pt for an automobile exhaust converter was demonstrated and complete reduction of NO to N 2 is accomplished above 250°C by the defect-pyrochlore support Pb 2 Pb x Ru 2− x O 6+δ, and oxidation of hydrocarbons or CO to CO 2 is achieved by the dispersed Pt.

TL;DR: In this paper, the charge distribution around the VO bonds in V2O5, V6O13, and V 2O4 was calculated by using an empirical formula and the same expression was also used to calculate the oxygen bond strengths on the surface.

TL;DR: In this paper, the high-temperature form of NaFeP2O7 crystallizes in the monoclinic P2 1 c space group with a = 7.3244(13), b =7.9045(7), c = 9.5745(15), A, β = 111.858(13)°, and Z = 4.047.

TL;DR: In this article, the structure of a lamellar compound with S|Cu 0.33 Cr 0.50 PS 3 is modeled as a two-dimensional Heisenberg model, where copper is not located at the center of its octahedral sites but is distributed among a continuous series of positions within these sites.

TL;DR: In this article, the explosive-like character of the synthesis as a result of continual accumulation of energy in the crystal lattice of the substances submitted to mechanical dispersion is described for the first time.

TL;DR: In this paper, the edge-and corner-sharing between TiO 6 octahedra is described by means of strongly bonded (101) layers containing two directions of chains: a [ 1 01] chain with rutile-like chain segments and a [010] chain in the shear-plane region.

TL;DR: In this paper, the crystal structures of the defect pyrochlores TaWO 5.5, HTaWO 6, DTa WO 6, H 2 Ta 2 O 6, D 0.4 H 1.6 Ta WO 2.6, and H 2 T O 6 · H 2 O, have been investigated by neutron powder diffraction.

TL;DR: In this article, a body-centered triclinic cell based on the mesh in the shear plane and the period along the pseudo rutile chains is proposed for comparisons of the members of the title series.

TL;DR: In this paper, single-phase products spanning the entire composition range LaTiO3YTiO 3 and La0.1Y0.9 and La 0.2Y 0.8 were prepared and the electrical resistivity of single-crystal samples were measured in the range 225-300 K.

TL;DR: The relation between the orbital splittings and dihedral distortion angle is found to be linear for symmetry C2v in a wide range of distortion of the regular tetrahedron, and distortion has a compensatory effect lowering the hfs splitting from 4p-orbital admixture into the ground-state wavefunction.