PROCESS OF MANUFACTURE OF FILM ON BASE OF COMPLEX OXIDES Russian patent published in 1995 - IPC

FIELD: catalytic, superconducting, laser, SHF technologies, integral and magnetooptics. SUBSTANCE: working solution containing, per cent mass: polyvinyl alcohol 5.0-20.0; salts of metal components of film 0.1-5.0 and water is additionally injected with 1.0-20.0 per cent by mass of polymer component from group of water-solubles, for instance, methylcellulose or polyvinylpirrolidon. Working solution is applied by layers with intermediate drying of layers at room temperature and with heating of at least two layers at 400-550 C till organic component is removed. Then final firing is conducted at 600-960 C. Injection of additional polymer component having code of temperature dependence of relative linear dimensions opposite to that of polyvinyl alcohol results in insufficient deformation of film in process of heating, in diminished mechanical stresses in film which prevents its destruction. EFFECT: improved operational characteristics of film, facilitated manufacture. 1 tbl