Na⁺ Conductors with the NASICON Framework Structure:  Structure, Transport & Thermodynamic Stabilit

Comprehensive characterization of Na⁺ conductors with the NASICON framework structure:
Preparation (incl. single crystals), crystallographic structure (incl. conduction pathways), ionic conductivity (conductivity within the bulk and domain walls) and thermodynamics (incl.  free enthalpy for reaction with sodium). 

K.-D. Kreuer, H. Kohler, and J. Maier 
Sodium Ion Conductors with NASICON Framework Structure 
In High Conductivity Ionic Conductors: Recent Trends and Applications, T. Takahashi, ed., World Scientific, Singapore, 1989, pages 242–279. 
DOI: 10.1142/9789814434294_0011

K. D. Kreuer, H. Kohler, U. Warhus, and H. Schulz 
NASICON Solid Electrolytes. Part III: Sodium Conductivity Enhancement Along Domain and Grain Boundaries 
Materials Research Bulletin 21(2), 149–159 (1986). 
DOI: 10.1016/0025-5408(86)90201-1

K. D. Kreuer and U. Warhus 
NASICON Solid Electrolytes. Part IV: Chemical Durability 
Materials Research Bulletin 21(3), 357–363 (1986). 
DOI: 10.1016/0025-5408(86)90193-5