Study of glasses/glass-ceramics in the SrO–ZnO–SiO2 system as high temperature sealant for SOFC applications

Some recent studies on glass/glass-ceramics for use as sealants with special emphasis for high temperature applications

“…In the previous section we discussed how the phase emergence behavior and crystallization kinetics of SZS glasses are promising for SOFC sealing applications. In this section, we discuss the effect of various additives such as B 2 O 3 , Al 2 O 3 , V 2 O 5 , and Cr 2 O 3 in the SZS system [54]. The changes in the glass structure resulting from the composition modification were observed using Raman spectroscopy.…”

“…V 2 O 5 and Cr 2 O 3 were added to reduce surface tension of the glass/melt, which also act as nucleating agents in different glass compositions [39]. The details of glass preparation are discussed in the literature [54]. Various thermo-physical properties of glasses prepared are listed in Table 10.…”

Development of a new cost effective Fe–Cr ferritic stainless steel for SOFC interconnect

“…It shows fairly good performance in oxidation rate, electrical conductivity and Cr evaporation in the SOFC operating condition. The Crofer22 has been approved as a promising SOFC interconnect metal by many researchers for the last several years [8,9]. However, its material cost is still very high since it has to be fabricated by vacuum melting process due to the alloying with rare earth metal and very low Si content near 0.01 mass% [10].…”

A new formulation of barium–strontium silicate glasses and glass-ceramics for high-temperature sealant

“…Thus, in order to avoid this, SrO based glasses have been studied. Tiwari et al [15] reported bonding of SrO and ZnO based silicate glasses with Crofer-22 APU. Ojha et al [16] studied the SrO and La 2 O 3 based Al 2 O 3 eB 2 O 3 eSiO 2 glasses and reported that SrO modified the network and resulted in change in thermo-physical properties.…”