EXAFS OF TELLURIUM IN THE GLASSES OF THE B2O3-TEO2 SYSTEM

被引：33

作者：

OSAKA, A ^{[1
]}

QIU, JR ^{[1
]}

NANBA, T ^{[1
]}

TAKADA, J ^{[1
]}

MIURA, Y ^{[1
]}

YAO, T ^{[1
]}

机构：

[1] KYOTO UNIV,FAC ENGN,DEPT IND CHEM,SAKYO KU,KYOTO 606,JAPAN

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1992年 / 142卷 / 1-2期

关键词：

D O I：

10.1016/S0022-3093(05)80009-2

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：

TeK-edge spectra were measured for binary glasses of compositions 0.16B2O3.0.84TeO2 and 0.301B2O3.0.699TeO2. Te-O bond length and coordination number of Te atoms were analyzed to be very similar to those of paratellurite. Within errors of measurement, all the Te atoms were four-coordinated and TeO3+ units were absent in the glasses. It was concluded that some other mechanism should be present to compensate for a negative charge on four-coordinated boron atoms in the glasses.

引用

页码：81 / 86

页数：6

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