Glass-forming ability, sinterability and thermal properties in the systems RO–BaO–SiO2 (R=Mg, Zn)

Crystallization and sinterability of glass-ceramics in the system La2O3–SrO–B2O3

“…A hot stage microscope (HSM), E. Leitz Wetzlar, supplied with a Cannon camera, was used for determining the sintering behavior of the glass powder samples [17][18][19][20][21][22][23][24]. The glass powder samples were pressed into cylinders.…”

“…Two phases, La 2 SrB 10 O 19 [29] and SrB 6 O 10 (JCPDS 20-1190) [30] were identified in GLa5.7 after adequate heat treatment. The phases La 2 SrB 10 O 19 and SrLaBO 4 (JCPDS 34-1045) [31] were formed in GLa19.1. Only one phase, La 2 SrB 10 O 19 , was formed in GLa14.3 indicating that polymorphic crystallization occurred in this sample.…”

Effect of A2O3 (A=La, Y, Cr, Al) on thermal and crystallization kinetics of borosilicate glass sealants for solid oxide fuel cells

“…Planar design is better than tubular design due to its higher current density with simple processing [2][3][4][5][6][7]. However, the planar design of SOFC requires proper sealing at the edges of the cells to prevent fuel leakage and air mixing during cell operation [8,9]. The glass and glass ceramics are considered as most suitable materials for sealant as compared to the conventional sealing materials due to their compatibility with other components of SOFC at high temperature (800-1000 8C) [10].…”

Effects of lanthanum-to-calcium ratio on the thermal and crystalline properties of BaO–Al₂O₃–B₂O₃–SiO₂ based glass sealants for solid oxide fuel cells

“…6)16) The aluminum-borosilicate glass usually yields a CTE matching that of other SOFC stack components when it contains an amount of barium oxide, and thus the BaOAl 2 O 3 B 2 O 3 SiO 2 system glasses can be used as high-temperature sealants for SOFC. 17)24) For instance, Lara et al 25), 26) reported that the CTE of ROBaOSiO 2 system glasses are in the range of 8.512 © 10 ¹6 K ¹1 . Ghosh et al 27) have studied the effect of BaO addition on the MgOBaO Al 2 O 3 La 2 O 3 B 2 O 3 SiO 2 system glasses, and developed a promising glass composition having MgO and BaO content of 22 and 25 mol %, respectively.…”