A voltammetric study on the thermodynamics of the Fe3+/Fe2+-equilibrium in alkali-lime-alumosilicate melts

被引：38

作者：

Gerlach, S ^{[1
]}

Claussen, O ^{[1
]}

Rüssel, C ^{[1
]}

机构：

[1] Univ Jena, Otto Schott Inst Glaschem, D-07743 Jena, Germany

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1999年 / 248卷 / 01期

关键词：

D O I：

10.1016/S0022-3093(99)00103-9

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：

Alkali-lime-alumosilicate glass melts (16R(2)O, 10CaO, xAl(2)O(3) and (74 - x)SiO2) with R = Li, Na and K and alumina contents of up to 15 mol%. doped with 0.2 mol%, Fe2O3 were studied using square-wave voltammetry. increasing alumina content leads to an increase in the standard potential of the Fe3+/Fe2+-redox pair. The standard potentials measured increase from Li2O to K2O. They were compared with data reported in the literature. An empirical correlation is given which enables a calculation of the standard potentials from the chemical composition. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：92 / 98

页数：7

共 28 条

[1]

Claussen O, 1998, PHYS CHEM GLASSES, V39, P200

[2]

Claussen O, 1996, GLASTECH BER-GLASS, V69, P95

[3] Voltammetry in silicate and borosilicate melts [J].

Claussen, O ;

Russel, C .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1996, 100 (09) :1475-1478

[4] Self diffusion of polyvalent ions in a borosilicate glass melt [J].

Claussen, O ;

Russel, C .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1997, 215 (01) :68-74

[5] INTERPRETATION OF GLASS CHEMISTRY IN TERMS OF OPTICAL BASICITY CONCEPT [J].

DUFFY, JA ;

INGRAM, MD .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1976, 21 (03) :373-410

[6]

FREUDE E, 1990, GLASTECH BER-GLASS, V63, P193

[7] Thermodynamics of iron in alkali-magnesia-silica glasses [J].

Gerlach, S ;

Claussen, O ;

Russel, C .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 238 (1-2) :75-82

[8] Self-diffusivity of iron in alkali-lime-alumosilicate glass melts [J].

Gerlach, S ;

Claussen, O ;

Russel, C .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 240 (1-3) :110-117

[9]

JEDDELOH G, 1984, PHYS CHEM GLASSES, V25, P163

[10]

MARIC M, 1989, PHYS CHEM GLASSES, V30, P5

← 1 2 3 →