오영제 이득용 2024-01-20T23:01:03Z 2024-01-20T23:01:03Z 2021-09-06 2008-08 1225-5475 https://pubs.kist.re.kr/handle/201004/133262 Monolith aperture-type oxygen sensors with simple structure of YSZ(pin-hole)/Pt/ YSZ(solid electrolyte)/Pt were fabricated by co-firing technique. To enhance the yield of productivity, a couple of YSZ green sheets for diffused barrier and solid electrolyte were prepared by tape-casting and co-firing method. The limit current characteristics of the oxygen sensors were measured between 500 and 650 oC. The heating temperature of 600 oC was optimum as a portable oxygen sensor in the range of oxygen concentration from 0 to 75 vol%. Linear proficiency of limit current behavior as a function of oxygen concentration was controlled by the variation of aperture dimension. The fabricated oxygen sensors showed the stable sensing output for 30 days. Gas leakage in bonding area due to warping, cracking and thermal cycling was not found in the period. Korean 한국센서학회 일체화된 Aperture 구조의 한계전류형 산소센서의 제작 및 특성 Fabrication and characteristics of limit-current type oxygen sensor with monolith aperture structure Article 2 센서학회지, v.17, no.4, pp.273 - 280 센서학회지 17 4 273 280 kci ART001267707 yttria stabilized zirconia(YSZ) Co-firing aperture limit current oxygen sensor