CHROMLOK
Protection of Solid Oxide Fuel Cell (SOFC) Interconnects
The ChromLok process provides long term protection from chromium emission
fuelcellmaterials’ innovative ChromLokTM system provides metallic components used in solid-oxide fuel cell systems with the high-temperature protection they need. The ChromLokTM system includes a range of complementary oxide coatings that prevent the release of detrimental chromium species from stainless steels during high temperature operation. Coatings include a manganese cobaltite (MCO) coating, which combines excellent protection with low resistance, ideal for the cathode active-area where electrical conductivity is critical. Additional coatings include non-active, insulating coatings compatible with common seal materials and a Ni-based anode side coating.
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Excellent long term stability for over 50,000 hours demonstrated
Electrical ASR performance of MCO coated ferritic stainless steel
Substrate: AL 441-HP Temperature: 800 °C – 900 °C
Gas composition: humidified air (~ 3 % H2O) Current density: 0.5 A/cm2
ChromLok Microstructure
After Deposition 800 hrs 800º C >7000 hrs 800ºC/900ºC
Top Down MCO Coating Cross Section MCO Coating
Nexceris Updates
Accelerated Testing for Long-Term Results with Solid Oxide Fuel Cells
To achieve commercial acceptance, long-term stability testing is critical to demonstrate improved durability of protective coatings. Nexceris has successfully developed a suite of coatings to provide improved high-temperature protection to metallic components used in solid-oxide fuel cells (SOFC).
Revisiting Nexceris’ Solid Oxide Fuel Cell Advancements from MS&T 2018
Remember MS&T 2018 in Columbus, Ohio? No?! Well, all of us at fuelcellmaterials want you to remember what we talked about and fueled up your brain a bit.
Functional SOFC Interface Coatings Presented at European SOFC & SOE Forum
Nexceris was honored to give a presentation at the 13th European SOFC & SOE Forum on our development of various SOFC interfaces created by aerosol-spray deposition. Our Director of Materials Science, Neil Kidner, recently gave a talk on July 4th at the conference, which is held every two years in beautiful Luzern, Switzerland.