COMPOSITE OXYGEN-CONDUCTING DIAPHRAGM Russian patent published in 2007 - IPC B01D71/02 

FIELD: diaphragm technology; production of the composite oxygen- conducting diaphragms.

SUBSTANCE: the invention is pertaining to the diaphragm technology and may be used for separation of the gases. The composite oxygen-conducting diaphragm contains the solid ceramic layer with the ionic and-or electronic conductivity and at least one layer of the gas-permeable structure made out of the alloy containing the elements of the VIII and VI groups of Mendeleev's Periodic table of elements plus aluminum. The diaphragm consists of two layers of the gas-permeable structure and the solid ceramic layer arranged between them. The presented invention ensures the decrease of the difference of the linear expansion coefficients of the protective gas-permeable layer and the ceramic layer and prevention of the diffusion of the applied alloy into the ceramic layer.

EFFECT: the invention ensures the decreased difference of the linear expansion coefficients of the protective gas-permeable layer and the ceramic layer and prevention of the diffusion of the applied alloy into the ceramic layer.

6 cl, 3 dwg, 11 ex