Electronic structureEquations of stateMagnetic propertiesGeneralized-gradient-approximationAb-initioKnif3Alpha-fe2o3CompressionThe periodic unrestricted Hartree-Fock method has been adopted to calculate the ground-state spin-polarized wave function and total energy of rhombohedral Cr2O3 (corundum-type ...
The scientific understanding and demonstration of the immobilization of heavy metals (notably lead and chromium) in food contact materials is crucial for the safety of the environment and humans. To tackle this issue lead crystal glasses doped between 50 and 2000ppm of Cr2O3were altered under ...
材料英语3-crystal structure-2 •Close-packedstructures ABCABC--FCC ABAB--HCP -1- •Crystalstructures System AxialLengthsandAngles Bravais(Space)Lattices CubicTetragonalOrthorhombic RhombohedralHexagonalMonoclinicTriclinic a=b=c,===90oa=bc,===90oabc,==...
In this work, three nitrogen- rich energetic nano-crystals based on 5,5′-azotetrazolate(AZT2−) Cr(III) salts were synthesized by means of SCCT methodology. SEM and TEM analyses show that the energetic nano-crystals feature a composition- and structure-dependent together with size-dependent...
Vibrational analysis of different isomers of oxalyldihydrazide and the crystal structure of the “ trans-trans ” formDIFFUSION OF SULFUR AND OXYGENELECTRICAL CONDUCTIVITY, MOBILITY, AND CARRIER CONCENTRATION OF HOLEDEVIATION FROM STOICHIOMETRY IN CR2O3Laser Raman, IR, and far-IR spectra of different...
Here we list the attributes of this work in brief: (1) Low-cost Zn2SnO4: Cr phosphors with NIR long-persistence phosphorescence are enabled by a characteristic inverse spinel crystal structure, easy substitution in Zn2+ or Sn4+ sites by Cr3+ in distorted octahedral sites as a result of ...
Recent advances in the chemistry and structure of thin oxide overlayers (passive films) on metal and alloy surfaces have been achieved by using XPS and STM. XPS data have shown that the passive film formed on Ni in acid solution consists of a thin oxide layer (NiO) covered by hydroxyls. ...
Effect of Cr2O3 and NiO additions on the phase transformations at high temperature in Portland cement 热度: Phase transition and structure of (C3N2H5)2SbF5 single crystal 热度: Effect of annealing temperature on the properties of IZO films and IZO based transparent TFTs 热度: 相关推荐...
Using DC-RF magnetron sputtering method, the stress free c- and r-oriented Cr2O3 thin films were grown on c- and /"-cut sapphire substrates, respectively. The c-oriented film grown at 580 °C shows the smoothest surface with a surface average (R_a) of 0.17, although the osurface ...
V.A. Lyahovitskaya, D. Cahen, in Encyclopedia of Materials: Science and Technology, 2001 See also: Bulk Crystals: Vapor Growth; Crystal Growth from the Melt; Growth from Solutions; GaSe and GaTe, Growth of; Vapor Epitaxy of Chalcopyrite Structure Semiconductors ...