NA+ COORDINATION IN SODIUM DIBORATE AND TRIBORATE GLASSES BY X-RAY-DIFFRACTION

被引：23

作者：

MEDDA, MP ^{[1
]}

MUSINU, A ^{[1
]}

PICCALUGA, G ^{[1
]}

PINNA, G ^{[1
]}

机构：

[1] UNIV CAGLIARI,DIPARTIMENTO SCI CHIM,VIA OSPED 72,I-09124 CAGLIARI,ITALY

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1993年 / 162卷 / 1-2期

关键词：

D O I：

10.1016/0022-3093(93)90748-M

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Na+ coordination in diborate (Na2O-2B2O3) and triborate (Na2O-3B2O3) glasses was investigated by X-ray diffraction through a difference method in which radial distribution functions of lithium borate samples are subtracted from those of sodium borate glasses of the same molar composition. The difference curves exhibited peaks arising from the distribution of nearest neighbour O atoms around Na+ ions. The quantitative analysis of these peaks and a careful evaluation of the reliability of structural parameters were performed. Average coordination numbers were 4.0+/-0.4 for diborate and 4.8+/-0.5 for triborate. Finally, a comparison was made of Na+ environments in glasses and crystals of equal composition, and the similarities and the differences were discussed.

引用

页码：128 / 135

页数：8

共 50 条

[31] X-RAY-DIFFRACTION AND ABSORPTION STUDIES OF ION-EXCHANGED GLASSES
DUBIEL, M
SCHMITZ, R
KOLB, U
GUTWERK, D
BERTAGNOLLI, H
PHYSICA B, 1995, 208 (1-4): : 349 - 350
[32] X-RAY-DIFFRACTION STUDIES OF GLASSES IN SYSTEM NA2O-TIO2-SIO2
JOSE, VR
URNES, S
PHYSICS AND CHEMISTRY OF GLASSES, 1972, 13 (04): : 122 - &
[33] STRUCTURAL CHARACTERIZATION OF MAGNESIUM PHOSPHATE-GLASSES BY X-RAY-DIFFRACTION
WALTER, G
HOPPE, U
KRANOLD, R
STACHEL, D
PHYSICS AND CHEMISTRY OF GLASSES, 1994, 35 (06): : 245 - 252
[34] X-RAY-DIFFRACTION STUDY OF AGI-AGPO3 GLASSES
MUSINU, A
PICCALUGA, G
PINNA, G
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1988, 106 (1-3) : 70 - 72
[35] X-RAY-DIFFRACTION STUDY OF TIO2-PBO GLASSES
DIMITRIEV, Y
MIHAILOVA, V
GATTEF, E
PHYSICS AND CHEMISTRY OF GLASSES, 1993, 34 (03): : 114 - 116
[36] AN X-RAY-DIFFRACTION STUDY OF THE STRUCTURE OF BARIUM FLUOROZIRCONATE AND FLUOROHAFNATE GLASSES
ETHERINGTON, G
KELLER, L
LEE, A
WAGNER, CNJ
ALMEIDA, RM
JOURNAL OF NON-CRYSTALLINE SOLIDS, 1984, 69 (01) : 69 - 80
[37] X-RAY-DIFFRACTION STUDIES OF GLASSES IN SYSTEM NA2O-TIO2-SIO2 WHERE NA+ HAS BEEN PARTIALLY REPLACED BY AG+
JOSE, VR
URNES, S
PHYSICS AND CHEMISTRY OF GLASSES, 1974, 15 (06): : 158 - 158
[38] METAL COORDINATION IN NICKEL CIMETIDINE TETRAFLUOROBORATE BY POWDER X-RAY-DIFFRACTION
AMIGO, JM
REVENTOS, MM
SANCHO, A
SOTOTUERO, L
CANTARERO, A
ZEITSCHRIFT FUR KRISTALLOGRAPHIE, 1987, 180 (1-4): : 123 - 129
[39] X-RAY-DIFFRACTION OF SCLEROGLUCAN
MARCHESSAULT, RH
BLUHM, T
DESLANDES, Y
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1981, 181 (MAR): : 47 - CARB
[40] X-RAY-DIFFRACTION ANALYSIS OF TRACES OF NA IN SYNTHETIC CORUNDUM POWDER
GYARMATHY, G
HEGEDUS, AJ
MIKROCHIMICA ACTA, 1974, (03) : 539 - 543

← 1 2 3 4 5 →