NOVELTY - The method for the production of porous ceramics useful in lambda probe and/or particle sensor and/or in a fuel cell, comprises preparing a composition (1) consisting of ceramic-based material (3), and electrically and magnetically polarizable and/or polarized combustible fibers (2) and/or particles, aligning the fibers and/or particles in the composition through applying electric and/or magnetic fields, and sintering the composition comprising the aligned fiber and/or particles at a temperature by which the ceramic based material hardens itself and the fibers and/or particles are burned.    USE - The method for the production of porous ceramics useful in lambda probe and/or particle sensor and/or in a fuel cell (claimed).    ADVANTAGE - The method ensures production of porous ceramics with low porosity and adjustable pore size.    DETAILED DESCRIPTION - The method for the production of porous ceramics useful in lambda probe and/or particle sensor and/or in a fuel cell, comprises preparing a composition (1) consisting of ceramic-based material (3), and electrically and magnetically polarizable and/or polarized combustible fibers (2) and/or particles, aligning the fibers and/or particles in the composition through applying electric and/or magnetic fields, and sintering the composition comprising the aligned fiber and/or particles at a temperature by which the ceramic based material hardens itself and the fibers and/or particles are burned. The composition comprises further organic binder and/or solvent (4) and is provided in which the fiber and/or particles are distributed in the ceramic based material and the resultant mixture is subsequently mixed with the organic binder and/or solvent. The preparation of the composition and/or the alignment of the fiber and/or particle in the composition are carried out under influencing of ultrasound in the composition. The applied electric and/or magnetic field is maintained during sintering the composition. The composition is subjected before aligning the fiber and/or particles through screen-printing on a temperature-stabilized ceramic and/or smooth substrate (5). The ceramic based material particle has an average diameter that is less than or greater than the average diameter of the fiber. The fiber is pith-, polyacrylnitrile- and/or viscous/rayon based carbon fiber and/or plastic fiber. An INDEPENDENT CLAIM is included for porous ceramics.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic cross-section of a composition applied on a substrate.    Composition (1)    Fiber (2)    Ceramic based material (3)    Binder and/or solvent (4)    Substrate. (5)