Rare earth added barium alumino borosilicate glass-ceramics as sealants in solid oxide fuel cells

M. S. Salinigopal, N. Gopakumar, P. S. Anjana, O. P. Pandey

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Glasses with composition 50BaO-(5-x) Al2O3-xR2O3–30B2O3–15SiO2 (x = 0,5 and R = Nd, Gd, La, Dy) have been synthesized by conventional melt quenching method. Controlled crystallization has been carried out to convert these glasses to corresponding glass-ceramics. X-ray diffraction (XRD) technique has been used to identify the crystalline phases formed in glass-ceramics. Archimede's method has been used to measure the density of glass-ceramics. The co-efficient of thermal expansion of all glass-ceramics lie within the range (11.60 – 12.81) x 10−6/°C, which matches with that of the other components of solid oxide fuel cell. The interaction study of glass-ceramics with Crofer22APU interface and Crofer22APU/Glass-ceramic/Crofer22APU showed no evidence of interfacial failure and cracks. Hence the prepared glass-ceramics can be considered as a suitable candidate for sealant materials in SOFC applications.

Original languageEnglish
Article number121242
JournalJournal of Non-Crystalline Solids
Volume576
DOIs
StatePublished - 15 Jan 2022
Externally publishedYes

Keywords

  • Co-efficient of thermal expansion (CTE)
  • Density
  • Glass-ceramics
  • Interconnect
  • X-ray diffraction (XRD)

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