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Originally Posted by CCPcoatings.com
What does that even mean? Alright, you caught my attention, What is a "cool combustion chamber" and Why on earth would it be the root cause of a coating failure?????
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Investigation of Thermal Barrier Coatings on IC Engines
without going into a two year study of thermodynamics here on the forum i will just refer you to this engineering article. it is quite lengthy and talks about thicknesses and alot of science but essentially think about the properties of the components, the aluminum has it own thermal expansion properties, the head another, the coating another. the ceramic is a heat sink holding energy, the
oil is splashing upon the bottom of the piston so the top and bottom surfaces have different temps, with low temperatures in the combustion chamber the coating does not absorb enough energy to function properly, hence it advantage being mainly on very high performance racing engines not street. enough cycles of expansion and contraction in a way that the coating cannot maintain its adhesion to the substrate, IE aluminum in this case, it will fail