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Self‐Healing Behavior of Barium–Lanthanum–Borosilicate Glass and Its Reactivity with Different Electrolytes for SOFC Applications
Author(s) -
Kaur Gurbinder,
Pandey Om P.,
Singh Kulvir
Publication year - 2012
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12002
Subject(s) - borosilicate glass , lanthanum , materials science , electron microprobe , barium , scanning electron microscope , diffusion , electrolyte , analytical chemistry (journal) , crystallization , thermal diffusivity , porous glass , chemical engineering , composite material , inorganic chemistry , metallurgy , thermodynamics , porosity , chemistry , chromatography , physics , electrode , engineering
The diffusion couples of lanthanum‐based barium borosilicate glass with high‐ and low‐temperature electrolytes have been heat‐treated at 850°C and 800°C, respectively, for 5, 100 and 750 h. These prepared diffusion couples have been characterized using various techniques like X ‐ray diffraction ( XRD ), scanning electron microscopy ( SEM ), X ‐ray dot mapping, and electron probe microanalysis ( EPMA ). The thermodynamic parameters like frequency factor, crystallization constants, free volume, and bulk thermal expansion coefficients have been calculated to understand the behavior of glass. Interestingly, glass revealed self‐healing tendency with heat treatment duration.