Conductivity of Li(Fe, Al)<sub>5</sub>O<sub>8</sub> Spinel Solid Solutions
نویسندگان
چکیده
منابع مشابه
Cation distributions and thermodynamic properties of binary spinel solid solutions
A general model is presented to enable the calculation of the cation distribution and thermodynamic properties of any binary solid solution between oxide spinels containing 2*, 3* and 4* cations. The model includes the effect ofdisordering enthalpy which depends linearly on the degree of disorder. In addition there are important contributions to the thermodynamic properties from the size mismat...
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High oxygen conductivities can be achieved in cation ordered LnxZrl_=O2_l x (Ln=Gd, Nd) solid solutions with pyrochlore (P) structure. High values of the pre-exponentlal factor °o are correlated with the degree of anion disorder in the 8b oxygen sublattice (neutron diffraction). The activation energy AH is lowered by cation ordering (F-P transition; effect of x) due to the occurence of a prefer...
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Craig Bryan,1 Catherine A. Whitman,1,2 Michel B. Johnson,2 John F. Niven,3 Patrick Murray,1 Alex Bourque,1,2 Hanna A. Dąbkowska,4 Bruce D. Gaulin,4,5 and Mary Anne White1,2,3,* 1Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2 2Institute for Research in Materials, Dalhousie University, Halifax, Nova Scotia, Canada B3H 4R2 3Department of Physics and Atmospheric...
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The addition of small amounts (2-10 wt %) of SiO2 to γ-Al2O3 increases the temperature of heat treatment necessary for transformation to R-Al2O3 by ∼100 K. We have studied this system using high-temperature solution calorimetry in molten 2PbO‚B2O3 at 1043 K. Our results indicate that the spinel-type Al2O3-SiO2 solid solutions with 2-10 wt % SiO2 are always energetically metastable by 30-35 kJ‚m...
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The combination of proteins with acids has been studied by Loeb I and others largely by means of hydrogen electrode measurements. The present work constitutes an attempt to apply the method of conductivity titration to the determination of the combining capacity of a protein for acids. The first work which indicated that the measurement of electrical conductivity could be used in volumetric ana...
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ژورنال
عنوان ژورنال: Journal of the Ceramic Society of Japan
سال: 1997
ISSN: 0914-5400,1882-1022
DOI: 10.2109/jcersj.105.446