A blister test experiment, used in an inverted configuration, has been developed in an attempt to quantify the interfacial fracture energy of oxide scales thermally grown on metallic materials. The practical use of this test is described for two systems: TiO2 on Ti and chromia rich oxide on stainless steel. Provided that experimental problems of good oxide gluing to the sample holder and regular propagation of the interfacial crack could be controlled, adhesion energy values may be obtained with good accuracy. Values between 3 and 170 J m-2 were measured, depending on the metal-oxide system and on the oxidation conditions.
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