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Thermal Barrier Coating and Iron Oxide

Thermal Barrier Coating and Iron Oxide

Thermal Barrier Coating and Iron Oxide

(OP)
In another thread there was a discussion about seeking an insulating layer between two metal objects through oxidation. But because oxidation does not lead to a stable equilibrium, the integrity of the substrate is jeopardized.

I am working with a process to apply an iron oxide-based thermal barrier coating over cast iron but am having difficulty with achieving an even layer. Someone suggested using oxidation to create that even layer as a "priming surface" for a thermal barrier coating.

Would that not, however, compromise the cast iron substrate?

RE: Thermal Barrier Coating and Iron Oxide

One method for developing a stable oxide layer is to perform steam treating, which is heating ferrous metals in a furnace that has an atmosphere that includes water vapor. The following link has a good technical description of the process:

http://www.abbottfurnace.com/technology/technical-...

You can Google "steam treating" to find potential vendors.

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