Thermal Stress in an Infinite Coating Plate

Abstract

Generally metallic materials possess high mechanical strength, but inferior to thermal or chemical erosion. On the other hand, for ceramics high thermal and chemical erosion resistance can be expected. Therefore, metallic materials of which surfaces are coated by ceramics, that is, coating materials are considered to unite the good qualities of both.
By such reasons there exist many used instances of coating materials, but it is doubtful whether sufficient investigations for the materials have been performed not only theoretically but also experimentally.
Under these circumstances, in this paper thermoelasticity taking place in a coating slab is dealt with analytically. Furthermore, in order to make clear the general tendency of the thermal stress induced in such a slab, some numerical results calculated based on the obtained analytically are shown by graph together with several explanations.