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Phase Stability and Ionic Conductivity of Solid Solutions with NASICON Structure
Author(s) -
Novoselov Andrey,
Zhuravleva Mariya,
Zakalyukin Ruslan,
Fomichev Valeriy,
Zimina Galina
Publication year - 2008
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2008.02300.x
Subject(s) - ionic conductivity , fast ion conductor , solid solution , conductivity , analytical chemistry (journal) , phase diagram , materials science , ionic bonding , ceramic , phase (matter) , powder diffraction , ternary operation , infrared spectroscopy , chemistry , ion , crystallography , electrolyte , metallurgy , organic chemistry , electrode , chromatography , computer science , programming language
Formation of heterovalent Zr‐substituted solid solutions (up to 7 mol%) for Yb 3+ in Na 6 Yb 3 (PO 4 ) 5 and LiNa 5 Yb 3 (PO 4 ) 5 complex phosphates was studied by ceramic technique at 950°C. Obtained samples were investigated with X‐ray powder diffraction, infrared, and impedance spectroscopy. Zr‐substituted (7 mol%) Na 6 Yb 3 (PO 4 ) 5 has ionic conductivity of 1.6·10 −2 S/cm at 300°C and 4.8·10 −5 S/cm at room temperature. An updated version of phase diagram for ScPO 4 –Na 3 PO 4 –Li 3 PO 4 quasi‐ternary system was provided.