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Sr(Ti,Fe)O₃ : material for a temperature independent resistive oxygen sensor

Title data

Menesklou, Wolfgang ; Schreiner, Hans-Jürgen ; Moos, Ralf ; Härdtl, Karl Heinz ; Ivers-Tiffée, Ellen:
Sr(Ti,Fe)O₃ : material for a temperature independent resistive oxygen sensor.
1999
Event: 1999 MRS Fall Meeting , 29.11.-03.12.1999 , Boston, USA.
(Conference item: Conference , Speech )

Abstract in another language

The metal oxide strontium titanate is a promising material for resistive high temperature oxygen sensors (T > 1000 K), that can be applied to control combustion engines. However, a disadvantage of this and of many other metal oxides is the strong temperature dependence of conductivity. In this work, we show that the temperature dependence of Sr(Ti1-xFex)O3-δ can be adjusted by the iron content. For x = 0.35 the thermal activation of the conductivity is near zero for a distinct temperature and oxygen partial pressure range (T = 1000 K - 1200 K, pO2 = 10 to 10^5 Pa). Short response times in the range of 10 ms can be realized by using sensors in thick film technology.

Further data

Item Type: Conference item (Speech)
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 08 Jul 2015 06:57
Last Modified: 08 Jul 2015 06:57
URI: https://eref.uni-bayreuth.de/id/eprint/15745