Effect of Chromium Oxide Additions on the Stability of Glass Ceramic Sealants for Solid Oxide Fuel Cells

被引：2

作者：

Krainova, D. A. ^{[1
]}

Saetova, N. S. ^{[1
]}

Farlenkov, A. S. ^{[1
]}

Belyakov, S. A. ^{[1
]}

Kuz'min, A., V ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Inst High Temp Electrochem, Ural Branch, Ekaterinburg 620990, Russia

[2] Vyatka State Univ, Kirov 610000, Russia

来源：

RUSSIAN JOURNAL OF APPLIED CHEMISTRY | 2021年 / 94卷 / 03期

关键词：

solid oxide fuel cell; chromium oxide; glass sealant; interconnect; coefficient of linear thermal expansion; chemical stability; SEALING GLASSES; CRYSTALLIZATION KINETICS; CR2O3; SOLUBILITY; INTERFACE;

D O I：

10.1134/S1070427221030083

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The development of electrochemical generators based on solid oxide fuel cells requires the development of sealant materials that would ensure gastight junction of separate components and be chemically and thermally compatible with other functional materials. This study deals with the effect of small additions of Cr2O3 on the thermal properties and chemical stability of a glass sealant of the composition 54.39SiO(2)-13.78Na(2)O-1.67K(2)O-5.02CaO-12.37MgO-0.61Y(2)O(3)-11.26Al(2)O(3)-0.9B(2)O(3). Introduction of chromium oxide increases the coefficient of linear thermal expansion relative to the initial composition but does not affect the sealing temperature and phase composition of the glass ceramic. The materials developed exhibit good chemical stability in contact with Crofer22APU chromium-containing alloy and can be recommended for use as sealants for solid oxide fuel cells.

引用

页码：323 / 329

页数：7

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