The invention pertains to methods of obtaining anisotropic crystalline films
and to devices for carrying out the methods. A colloidal system with anisometric
particles is applied as a film onto the surface of a substrate while the viscosity
of the colloidal system is lowered. The particles of the colloidal system with
lowered viscosity are oriented and the original viscosity of the colloidal system
is restored. The film is then dried. The drying is carried out under controlled
conditions. Zones of the dried film may be progressively heated to improve the
film characteristics.
