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Does anyone manufacture a barium titanate film?
Have you tried Google or the search box on our host's site?
Yes, but all I find is powder and various fluids to mix it with. No film I can cut or otherwise form.
I don't think you will find any film. Maybe sinlge crystals but no sheets that you can trim or form.
It appears you are correct. The supposed dielectric constant of 1000+ falls to nearly zilch when mixed with anything. Makes me wonder how they measured it.
What's the application?
I want to build some caps.