Method for producing oxygen sensor element in automotive field to detect e.g. temperature of gas for detection of nitrogen oxide in gas, involves arranging functional element at side of blank, sintering blank, and forming molded body

摘要

The method involves arranging a functional element (12) in a mold cavity of a forming tool, where the functional element includes a solid electrolyte layer (14) and functional layers. A ceramic material (24) is introduced i.e. injected, into the mold cavity, where the ceramic material contains a pore forming agent. The functional element is arranged at a side of a molded blank that is sintered. A porous molded body (20) e.g. carrier, is formed in sections, where the molded body forms a hollow body e.g. single closed tube, with an internal cavity (22). The functional layers are selected from a group consisting of an electrode (18), conductor, diffusion barrier, diffusion gap, reference gas channel, heating element (16), nernst and oxygen pump cells. An independent claim is also included for a sensor element.