UNSPECIFIED (2001) NASIGLAS structure and properties. In: 8th International Conference on the Structure on Non-Crystalline Materials (NCM 8), AUG 06-11, 2000, UNIV WALES, ABERYSTWYTH, WALES.

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Abstract

ZrO2-deficient compositions of NASICON (Na1+zZr2-x/3SixP3-xO12-2x/3 where 0 less than or equal to x less than or equal to 3) have been prepared in glassy form (sodium superionic conducting glass (NASIGLAS)) using the melt quench method. The corresponding glass-ceramics have also been produced by heat treatment at appropriate temperatures identified from DTA. From Si-29 MAS NMR, it is found that [SiO4] tetrahedra are predominantly Q(2) species for composition x = 3.0, but are mixed Q(2)-Q(1) for x < 3. Crystalline Na2ZrSi2O7 is found in all the corresponding glass-ceramic samples. The complex plane impedance method was used to determine the conductivity of NASIGLAS, which appears to be a complex function of mobility and concentration of Na+. Na-23 NMR indicates anomalous motion when x = 2.5. Low solubility of ZrO2 is noticeable in glasses with low value of x. (C) 2001 Elsevier Science B.V. All rights reserved.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	T Technology > TP Chemical technology T Technology > TA Engineering (General). Civil engineering (General)
Journal or Publication Title:	JOURNAL OF NON-CRYSTALLINE SOLIDS
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0022-3093
Date:	November 2001
Volume:	293
Number of Pages:	6
Page Range:	pp. 709-714
Publication Status:	Published
Title of Event:	8th International Conference on the Structure on Non-Crystalline Materials (NCM 8)
Location of Event:	UNIV WALES, ABERYSTWYTH, WALES
Date(s) of Event:	AUG 06-11, 2000
URI:	http://wrap.warwick.ac.uk/id/eprint/11603

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