IONIC CONDUCTION MECHANISM IN Na5+xYA1xSi4-xO12 SUPERIONIC CONDUCTORS
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition1989年第1期
论文作者：崔万秋 邹云
文章页码：13 - 18
摘 要：<正> Na5+xYAlxSi4-xO12 superionic conductors arerhombohedral R3c space group.Their structures arecharacterized by(Alx/4Si1-x/4)O4 tetrahedra linked toform puckered(Al3xSi4-x)4O35 rings parallel to thebasal plane of the hexagonal cell.These rings,separated by parts of sodium oxygen polyhedron,arestacked to form large rigid colums parallel to c axis.The columns are linked by[YO6]octahedra to form athree-dimensional Framework with large channels betweenthe rings.Parts of Na ions located in the cores of thecolumns are movable.In terms of the conductionmechanism,the concentration of conducting Na+ ions wascarried out and compared with the experimental results.It was found that the theoretical values accord withthe experimental results.
崔万秋，邹云
摘 要：<正> Na5+xYAlxSi4-xO12 superionic conductors arerhombohedral R3c space group.Their structures arecharacterized by(Alx/4Si1-x/4)O4 tetrahedra linked toform puckered(Al3xSi4-x)4O35 rings parallel to thebasal plane of the hexagonal cell.These rings,separated by parts of sodium oxygen polyhedron,arestacked to form large rigid colums parallel to c axis.The columns are linked by[YO6]octahedra to form athree-dimensional Framework with large channels betweenthe rings.Parts of Na ions located in the cores of thecolumns are movable.In terms of the conductionmechanism,the concentration of conducting Na+ ions wascarried out and compared with the experimental results.It was found that the theoretical values accord withthe experimental results.
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