The conductivities of an ionic polycrystalline solid lithium iodine (Lil), covalent polycrystalline lithium aluminium titanium phosphate (LATP) glass-ceramic material and Y(Sc)SZ with Al203 and Ba0.6Sr0.4TiO3 (O.6BST) additions were investigated. It was determined that blocking and space charge effects coexist in these heterogeneous solids. However, their magnitudes differ from one system to another. The most pronounced blocking effect was evident in the LATP-Al203 system, whereas a dominant space charge effect was observed in the Lil-Al203 system. The higher dielectric constant of 0.6BST enhanced the space charge effect and thus conductivity in the LATP-0.6BST system.
Origin
University Dayton Research Inst, Usa
Journal Title
Trans Indian Ceram Soc 66 3 2007 123-130
Sector
Special Glass
Class
S 3617b