Shear strength and interfacial characterization of borosilicate glass-to-metal seals

Effect of interconnect pre‐oxidation on high‐temperature wettability and mechanical properties of glass seals in SOFC

“…The existence of these cavities was likely to generate cracks, weakening interface joint strength. 23 In contrast, the interface between oxide scale and glass formed on the S50 substrate showed no obvious cracks in Figure 5E, and few cavities in the glass. In the corresponding EDS spectrum on the cross section of S50/glass, the elemental composition of the alloy, oxide scale, and glass is shown in Figure 5G-I.…”

“…Processes that have been modeled include RMI, 15,16 CVD, 17,18 CVI, [19][20][21][22] and Sol-Gel Infiltration. 23 Impregnation of alumina matrix in eight-harness satin Nextel 610 fabric has been studied numerically in Ref. [ 24 ].…”

“…29,30 The physics of resin flow into a mold under pressure is similar to the seepage problem and so similar approaches have been used also to model the flow of resin into a mold containing fiber mats. 23,[31][32][33][34][35][36][37][38] The models are used in these cases to determine the resin flow front and mold filling times corresponding to different infiltration conditions.…”

“…29,30 The physics of resin under pressure is similar to the seepage pr lar approaches have been used also to mod into a mold containing fiber mats. 23,[31][32][33][34][35][36][37][38] T in these cases to determine the resin flow ing times corresponding to different infilt Preceramic polycarbosilane polymers as precursors to make ceramic fibers 10,3 trix. [7][8][9]40,41 The chemical and volume ch pany ceramization of the polymer during documented in several studies.…”

“…21 However, the shear strength of glass seals jointing adjacent components was one or two orders of magnitude below other components. 22,23 The jointing interfaces would likely be the weak point when unit cells were connected in series of ten or more. Therefore, one of the fundamental challenges for glass seals is to significantly improve joint strength at the glass/alloy interface and so reduce the probability of sealing failure.…”