[en] In the ceramic/metal joining and coating, the most difficult problem is how to overcome poor adhesion of ceramic layers by their cracking and/or peeling arising from their intrinsic brittleness. On the basis of accumulated results and discussion, we propose a novel concept and technology of formation 'Graded Intermediate Layer' or 'Growing Integrated Layer' [GIL] between ceramics and metallic materials to improve the adhesion performance. Those GIL(s) can be prepared from a component of the metallic materials by chemical and/or electrochemical reactions in a solution at low temperatures of RT-200 deg. C. BaTiO₃ or SrTiO₃/TiO_x GIL films on Ti plates formed by hydrothermal-electrochemical method showed good adhesion. CaTiO₃/Al₂O₃/Ti₂Al GIL films on TiAl exhibited excellent adhesion and anti-oxidation performances. The GIL strategy is effective for metallic alloys and bulk metallic glasses because they generally contain active component(s)