Thermochemical Compatibility of a Seal Glass with Different Solid Oxide Cell Components

Authors: Mahapatra, Manoj K.; Lu, Kathy

Source: International Journal of Applied Ceramic Technology, Volume 7, Number 1, January/February 2010 , pp. 10-21(12)

Publisher: Wiley-Blackwell

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Abstract:

Thermochemical compatibility of an aluminosilicate glass (SABS-0) with Crofer 22 APU, nickel, and NiTiHf alloy has been studied for solid oxide cell use. Local SABS-0 devitrification occurs near the interfaces of Crofer 22 APU/SABS-0 and Ni/SABS-0 samples. But extensive SABS-0 devitrification is observed at the NiTiHf/SABS-0 interface. The SABS-0 elements diffuse a few microns into the Crofer 22 APU alloy and the nickel, or vice versa. But the SABS-0 and NiTiHf elements diffuse into each other at ∼25 μm. The SABS-0 glass is thermochemically compatible with the Crofer 22 APU and the nickel but not with the NiTiHf alloy.

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1744-7402.2009.02401.x

Affiliations: 1: Department of Materials Science and Engineering, Virginia Polytechnic Institute and State University,Blacksburg, Virginia 24061

Publication date: 2010-01-01