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A method of making a coated article, the method comprising: providing a supported by a substrate coating, the coating comprising a combustible layer of carbon-type diamond (DLC) and a layer comprising at least one of: (a) Zr, and (b) a metal nitride, a phase transformed during heat treatment; heating the fuel layer and the phase to transform in order to cause combustion of the combustible layer thereby causing the combustible layer to generate heat upon combustion thereof; using heat generated by combustion of the combustible layer to help phase transformation of the layer comprising at least one of (a) Zr, and (b) a metal nitride, so that a new layer transformed phase is formed; and wherein the new phase transformed layer comprises at least one of (i) zirconium oxide, (ii) a cubic crystal structure, and (iii) a metal oxide.