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New Method to Fabricate Limiting‐Current‐Type Oxygen Sensors
Author(s) -
Kim DoHyeong,
Miyayama Masaru
Publication year - 1999
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1999.tb02175.x
Subject(s) - limiting current , cofiring , limiting , materials science , current limiting , current (fluid) , oxygen sensor , diffusion , oxygen , carbon fibers , limiting oxygen concentration , analytical chemistry (journal) , nanotechnology , optoelectronics , chemical engineering , composite material , chemistry , electrical engineering , thermodynamics , mechanical engineering , engineering , electrode , environmental chemistry , physics , electrochemistry , organic chemistry , composite number , combustion
A cofiring process with the addition of carbon fiber was demonstrated successfully to be a new method to fabricate limiting‐current‐type oxygen sensors. Reproducible, limiting‐current behavior was realized in sensors that were made via cofiring. The limiting current was directly proportional to –ln (1 – X O2 ) over an oxygen concentration X O2 range of 0%–25%, and gas diffusion through the hole made by the burnout of the carbon fiber in the sensor was believed to be in the normal diffusion region.