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Air brazing

K.S. Weil, C.A. Coyle, J.T. DarseU, et al.. Effects of thermal cycling and thermal aging on the hermeticity and strength of silver-copper oxide air-brazed seals. Journal of Power Sources, 152 (2005) 97-104. [Pg.60]

Scott Weilz, K Yong Kim, J. and Hardy, J.S. (2005) Reactive air brazing A novel method of sealing SOFCs and other solid-state electrochemical devices. Electrochemical and Solid-State Letters, 8 (2), 133-136. [Pg.111]

Chen, H Li, L Kemps, R., Michielsen, B., Jacobs, M., Snijkers, F., Middelkoop, V. (2015) Reactive air brazing for sealing mixed ionic electronic conducting hollow fibre membranes, Acta Materialia, 10.1016/j.actamat.2015.01.029 Accepted manuscript. [Pg.111]

To overcome these issues, an alternative brazing technique has been developed specifically for use in fabricating solid-state electrochemical devices [74]. Referred to as air brazing, the technique employs a molten oxide that is at least partially soluble in a noble metal solvent to promote wetting of the ceramic sealing surface. Due to its ability to dissolve in the noble metal liquid, the oxide compound serves as an in situ oxygen buffer, raises the chemical activity of dissolved oxygen, and enhances... [Pg.324]

In designing an air braze filler metal, it is critical that there is some degree of mutual solubility between the metal and oxide constituent(s) in the liquid state. Experimental evidence suggests that the likely indicators for this behavior are measurable oxygen solubility (i.e., oxygen activity) in the liquid metal constituent, compatible melting points between the metal and oxide to be alloyed, and multiple valence states in the cation species of the oxide constituent that allow it to serve as an efficient oxygen buffer in the noble metal. Phase formation and phase equilibria in the filler metal system must be appropriate for the application of interest. For... [Pg.325]

YSZ-Fecralloy joint strength specimens joined with Ag4CuO and with G-18, the barium aluminosilicate glass-ceramic sealant discussed previously. Note that the glass joints experience a substantial loss in strength beyond 10 thermal cycles at 75 °C min , whereas the mpture strength of the air-brazed specimens remains constant as a function of thermal cychng. [Pg.327]

Kim, ).Y., Weil, K.S., and Choi, ).P. (2008) Metal-ceramic composite air braze with ceramic particulate. US Patent Application 20080217382. [Pg.333]

Kim, J.Y., Hardy, J.S., and Weil, K.S. (2005) Silver-copper oxide based reactive air braze (RAB) for joining yttria-stabilized zirconia. J. Mater. Res., 20, 636-643. [Pg.333]

While this sealing technique, as all the sealants based on ceramic/glass, is very attractive for laboratory/small-scale applications, a more robust technique has to be applied in order to exploit the MIEC membranes at larger scales. Among the various sealing techniques proposed so far, the reactive air brazing (RAB) seems to be the most appropriate for industrial applications. [Pg.757]

FeCralloy components that are further reactive using Ag-4 mol% Cu braze alloy at 1020°C for air brazed to alumina tubes, (b and c) 30min. (Reprinted from Ref. [64].)... [Pg.759]

The air brazing technique has been developed to overcome these shortcomings. Air brazing offers the following advantages. [Pg.157]

J.S. Hardy, J.Y. Kim, E.C. Thomsen, K.S Weil, Improved wetting of mixed ionic/electronic conductors used in electrochemical devices with ternary air braze filler metals. J. Electrochem. Soc. 154(3), 32-39 (2007)... [Pg.158]

B. Kuhn, F. Wetzel, J. Malzbender, R. Steinbrech, L. Singheiser, Mechanical performance of reactive-air-brazed (RAB) ceramic/metal joints for solid oxide fuel cells at ambient temperature. J. Power Sources 193(1), 199-202 (2009)... [Pg.158]


See other pages where Air brazing is mentioned: [Pg.219]    [Pg.103]    [Pg.101]    [Pg.308]    [Pg.325]    [Pg.325]    [Pg.326]    [Pg.327]    [Pg.327]    [Pg.329]    [Pg.332]    [Pg.333]    [Pg.333]    [Pg.770]    [Pg.157]    [Pg.158]    [Pg.130]    [Pg.188]   
See also in sourсe #XX -- [ Pg.324 ]




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Braze

Brazing

Reactive air brazing

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