Interface Development in Joining Yttria Stabilized Zirconia to Stainless Steel by In Situ Alloying with Ni/Ti Filler Metals

J.E. Indacochea; J. Beres; A. Polar

doi:10.4028/www.scientific.net/SSP.127.19

Paper Titles

Controlling of Grain Boundary Structure and Interface Structure of Advanced Materials and their Joints
p.3

Control of Texture in Intermetallic Compounds by Thermomechanical Processing
p.9

On the Liquidus Surface and Reaction Scheme of the Ternary System Cu-Si-Ti
p.15

Interface Development in Joining Yttria Stabilized Zirconia to Stainless Steel by In Situ Alloying with Ni/Ti Filler Metals
p.19

Interfaces in Joints and Composites Composed of Hard Materials and Metals
p.25

Hard a-Si₃N₄/MeN_x Nanocomposite Coatings with High Thermal Stability and High Oxidation Resistance
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Development of Telerobotic System for Remote Welding Operations in Unstructured Environment
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Distribution of Zn and Interfacial Microstructure of Braze-Welding CMT Joints between Aluminium and Galvanized Steel Sheets
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Reverse Monte Carlo Modeling of Atomic Configuration for Amorphous Materials
p.51

HomeSolid State PhenomenaSolid State Phenomena Vol. 127Interface Development in Joining Yttria Stabilized...

Interface Development in Joining Yttria Stabilized Zirconia to Stainless Steel by In Situ Alloying with Ni/Ti Filler Metals

Abstract:

There is need for efficient energy conversion systems based on domestic fossil or biofuels. Solid Oxide Fuel Cells (SOFC's) are attractive in this case, however sealing is a critical issue in SOFC development. The purpose of this investigation is to find a procedure to seal yttria stabilized zirconia (YSZ) electrolyte to the stainless steel electrical interconnect or gas manifold. The seal is usually exposed to high temperatures in the range of 500 to 1000°C. Brazing by in-situ alloying of nickel and titanium foils was performed to braze zirconia to 444- stainless steel. Different combinations of nickel/titanium foils were used; brazing was done in vacuum at 6 x 10-6 torr at 960°C, 1010, and 1030°C for different brazing times. The braze and interfacial microstructures were characterized by optical microscopy, scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). This paper assesses the effect of process parameters on the development and stability of the braze metal and the interactions of the filler metal with the two substrates.

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Periodical:

Solid State Phenomena (Volume 127)

Pages:

19-24

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.127.19

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Online since:

September 2007

Authors:

J.E. Indacochea, J. Beres, A. Polar

Keywords:

In Situ Alloying, Reactive Brazing, Stainless Steel (SS), Titanium-Nickel Filler Metals, Yttria Stabilized Zirconia (YSZ)

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