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Performance Comparison of High Temperature Pt-Based Sensor Using Pt Core-Shell Powder and Paste
Keywords: oxygen senor, core shell, platinum HTCC
Platinum core-shell powder materials are compared and discussed in an oxygen sensor application. The conductive layer materials are prepared by chemical precipitation in the absence or presence of substrate powders, such as YSZ or alumina, to produce platinum powders or platinum/ceramic core/shell composites, respectively. Physical and bulk powder characteristics are presented and discussed. An oxygen sensor is constructed and overall performance is presented to compare the different conductive materials using HTCC tapes and pre-fired substrates.
Richard Stephenson, CTO
Silicon Valley Materials Technology Corp
Sunnyvale, California
USA


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