Oxygen Sensors for Industrial Application

The present work aimed to study a family of solid ceramic electrolytes based on magnesium oxide doped zirconium oxide, usually identified as Mg-PSZ (zirconia partially stabilized with magnesia), used in the manufacture of oxygen sensors for molten metals. A set of electrolytes was prepared by mechan...

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Autor principal:	José Nhanga
Formato:	article
Lenguaje:	EN
Publicado:	Universidade do Porto 2021
Materias:	partially stabilized zirconia oxygen sensors impedance spectroscopy x-ray diffraction scanning electron microscopy Engineering (General). Civil engineering (General) TA1-2040 Technology (General) T1-995
Acceso en línea:	https://doaj.org/article/cf755ff3d5b34d2f842e44c8c9d436c2
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id	oai:doaj.org-article:cf755ff3d5b34d2f842e44c8c9d436c2
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spelling	oai:doaj.org-article:cf755ff3d5b34d2f842e44c8c9d436c22021-11-26T12:34:56ZOxygen Sensors for Industrial Application2183-649310.24840/2183-6493_007.004_0011https://doaj.org/article/cf755ff3d5b34d2f842e44c8c9d436c22021-11-01T00:00:00Zhttps://journalengineering.fe.up.pt/index.php/upjeng/article/view/969https://doaj.org/toc/2183-6493The present work aimed to study a family of solid ceramic electrolytes based on magnesium oxide doped zirconium oxide, usually identified as Mg-PSZ (zirconia partially stabilized with magnesia), used in the manufacture of oxygen sensors for molten metals. A set of electrolytes was prepared by mechanical (milling) and thermal (sintering) processing, varying the composition in magnesia and the cooling rate from the sintering temperature. These two parameters are essential in terms of phase composition and microstructure of Mg-PSZ, determining the behavior of these materials. The structural and microstructural characterization was done by means of X-ray diffraction (XRD). The electrical properties were analyzed by impedance spectroscopy in air. In general, the results obtained from various concentrations of dopant, different cooling rates and the same sintering step condition showed an increased conductivity for samples with predominance of high temperature stable phases (tetragonal and cubic).José NhangaUniversidade do Portoarticlepartially stabilized zirconiaoxygen sensorsimpedance spectroscopyx-ray diffractionscanning electron microscopyEngineering (General). Civil engineering (General)TA1-2040Technology (General)T1-995ENU.Porto Journal of Engineering, Vol 7, Iss 4, Pp 139-152 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	partially stabilized zirconia oxygen sensors impedance spectroscopy x-ray diffraction scanning electron microscopy Engineering (General). Civil engineering (General) TA1-2040 Technology (General) T1-995
spellingShingle	partially stabilized zirconia oxygen sensors impedance spectroscopy x-ray diffraction scanning electron microscopy Engineering (General). Civil engineering (General) TA1-2040 Technology (General) T1-995 José Nhanga Oxygen Sensors for Industrial Application
description	The present work aimed to study a family of solid ceramic electrolytes based on magnesium oxide doped zirconium oxide, usually identified as Mg-PSZ (zirconia partially stabilized with magnesia), used in the manufacture of oxygen sensors for molten metals. A set of electrolytes was prepared by mechanical (milling) and thermal (sintering) processing, varying the composition in magnesia and the cooling rate from the sintering temperature. These two parameters are essential in terms of phase composition and microstructure of Mg-PSZ, determining the behavior of these materials. The structural and microstructural characterization was done by means of X-ray diffraction (XRD). The electrical properties were analyzed by impedance spectroscopy in air. In general, the results obtained from various concentrations of dopant, different cooling rates and the same sintering step condition showed an increased conductivity for samples with predominance of high temperature stable phases (tetragonal and cubic).
format	article
author	José Nhanga
author_facet	José Nhanga
author_sort	José Nhanga
title	Oxygen Sensors for Industrial Application
title_short	Oxygen Sensors for Industrial Application
title_full	Oxygen Sensors for Industrial Application
title_fullStr	Oxygen Sensors for Industrial Application
title_full_unstemmed	Oxygen Sensors for Industrial Application
title_sort	oxygen sensors for industrial application
publisher	Universidade do Porto
publishDate	2021
url	https://doaj.org/article/cf755ff3d5b34d2f842e44c8c9d436c2
work_keys_str_mv	AT josenhanga oxygensensorsforindustrialapplication
_version_	1718409378863775744

Oxygen Sensors for Industrial Application

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