Magnesium Manganese Spinel Coatings for Solid Oxide Fuel Cell Interconnects Conferences

abstract

• Magnesium and manganese were electrodeposited on stainless steel 430 and oxidized in air at 800°C to form a spinel coating. Electrical conductivity of MgMn2O4 spinel was determined to be ~2 S/cm at 800°C. An under layer of copper aided uniform manganese deposition and uniform spinel formation. Copper in the spinel also increased conductivity (Cu0.7Mg0.3Mn2O4 ~60 S/cm at 800°C). The ternary Cu-Mg-Mn system has a wide spinel stability region compared to binary systems. CuMn2O4 spinel without magnesium has higher conductivity (~100 S/cm at 800°C) but this coating tended to bubble and detach from the substrate. The bubbling effect was reduced when magnesium was co-deposited.

authors

• Joshi, Simon
• Silva, Catherine
• Petric, Anthony

status

• published 

publication date

• April 1, 2013

published in

• ECS Transactions  Journal

presented at event

• 9th Solid State Ionic Devices Symposium, at the 222nd Meeting of the Electrochemical-Society  Conference

keywords

• ALLOYS
• ELECTRICAL-CONDUCTIVITY
• ELECTRODEPOSITION
• Electrochemistry
• Materials Science
• Materials Science, Coatings & Films
• Materials Science, Multidisciplinary
• Physical Sciences
• Science & Technology
• Technology

Digital Object Identifier (DOI)

• 10.1149/05027.0153ecst

start page

• 153

end page

• 160

volume

• 50

issue

• 27