Author affiliation: 1 Dipt. di Sci. dei Mater. e Ingegneria Chimica, Politecnico di Torino, Italy
Serial title: Powder Diffraction
Abbreviated serial title: Powder Diffr. (USA)
Volume: 12
Issue: 3
Publication date: Sept. 1997
Pages: 171-4
Language: English
ISSN: 0885-7156
CODEN: PODIE2
Document type: Journal article (JA)
Publisher: AIP for JCPDS-Int. Centre for Diffraction Data
Country of publication: USA
Material Identity Number: P919-1997-002
Abstract: It is known that solids with composition Na3Zr2Si2PO12 heated at 1200°C crystallize in the nasicon structure. This material shows a high ionic conductivity that represents an interesting improvement in the field of solid electrolytes. Our experimental results allow to establish for the first time that nasicon structures are stable along the compositional join Na3Zr2-x/4Si2-xP1+xO12 with x extending from 0 to 1.667. These structures are characterized by a Zr underoccupation of octahedral sites and a constant number of Na+ ions. This fact envisages a possible application of these materials in the field of ceramic sensors and ionic conductors
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