Solid State Ionics, Vol.100, No.3-4, 241-246, 1997
Short-Range Order and F- Ion Diffusion Inside the Pb1-Xalxf2+x Solid-Solution .2. Al-27 NMR Investigation and Proposal of Clustering Process
A Al-27 nuclear magnetic resonance (NMR) investigation at room temperature of the Pb1-xAlxF2+ (0 less than or equal to x less than or equal to 0.12) solid solution and of the ordered Pb9Al2F24 phase is carried out. Two different types of aluminium ions are identified and their ratio is determined as a function of x. A clustering process based on the formation of column clusters, more and more extended when x increases, is proposed on the basis of results issued from the F-19 (Part I) and Al-27 NMR investigations.