Preparation and Properties of (YCa)(TiMn)O3−d Ceramics Interconnect of Solid Oxide Fuel Cells

(YCa)(TiMn)O3–d ceramics prepared using a reaction-sintering process were investigated. Without any calcination involved, the mixture of raw materials was pressed and sintered directly. Y2Ti2O7 instead of YTiO3 formed when a mixture of Y2O3 and TiO2 with Y/Ti ratio 1/1 were sintered in air. Y2Ti2O7,...

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Main Authors:	Yi-Cheng Liou, Wen-Chou Tsai, Hao-Hsuan Yen, Yung-Chia Chang
Format:	Article
Language:	English
Published:	MDPI AG 2015-07-01
Series:	Materials
Subjects:	(YCa)(TiMn)O3−d interconnect solid oxide fuel cells
Online Access:	http://www.mdpi.com/1996-1944/8/7/4239

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spelling	doaj-85ad3b5c6399488ebd2c21becf68da9a2020-11-24T23:17:04ZengMDPI AGMaterials1996-19442015-07-01874239424810.3390/ma8074239ma8074239Preparation and Properties of (YCa)(TiMn)O3−d Ceramics Interconnect of Solid Oxide Fuel CellsYi-Cheng Liou0Wen-Chou Tsai1Hao-Hsuan Yen2Yung-Chia Chang3Department of Electronic Engineering, Kun Shan University, No.195, Kunda Rd., Yongkang Dist., Tainan City 71070, TaiwanDepartment of Electronic Engineering, Kun Shan University, No.195, Kunda Rd., Yongkang Dist., Tainan City 71070, TaiwanDepartment of Electronic Engineering, Kun Shan University, No.195, Kunda Rd., Yongkang Dist., Tainan City 71070, TaiwanDepartment of Electronic Engineering, Kun Shan University, No.195, Kunda Rd., Yongkang Dist., Tainan City 71070, Taiwan(YCa)(TiMn)O3–d ceramics prepared using a reaction-sintering process were investigated. Without any calcination involved, the mixture of raw materials was pressed and sintered directly. Y2Ti2O7 instead of YTiO3 formed when a mixture of Y2O3 and TiO2 with Y/Ti ratio 1/1 were sintered in air. Y2Ti2O7, YTiO2.085 and some unknown phases were detected in Y0.6Ca0.4Ti0.6Mn0.4O3–d. Monophasic Y0.6Ca0.4Ti0.4Mn0.6O3–d ceramics were obtained after 1400–1500 °C sintering. Dense Y0.6Ca0.4Ti0.4Mn0.6O3–d with a density 4.69 g/cm3 was observed after 1500 °C/4 h sintering. Log σ for Y0.6Ca0.4Ti0.6Mn0.4O3–d increased from –3.73 Scm–1 at 350 °C to –2.14 Scm–1 at 700 °C. Log σ for Y0.6Ca0.4Ti0.4Mn0.6O3–d increased from –2.1 Scm–1 at 350 °C to –1.36 Scm–1 at 700 °C. Increasing Mn content decreased activation energy Ea and increased electrical conductivity. Reaction-sintering process is proved to be a simple and effective method to obtain (YCa)(TiMn)O3–d ceramics for interconnects in solid oxide fuel cells.http://www.mdpi.com/1996-1944/8/7/4239(YCa)(TiMn)O3−dinterconnectsolid oxide fuel cells
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Yi-Cheng Liou Wen-Chou Tsai Hao-Hsuan Yen Yung-Chia Chang
spellingShingle	Yi-Cheng Liou Wen-Chou Tsai Hao-Hsuan Yen Yung-Chia Chang Preparation and Properties of (YCa)(TiMn)O3−d Ceramics Interconnect of Solid Oxide Fuel Cells Materials (YCa)(TiMn)O3−d interconnect solid oxide fuel cells
author_facet	Yi-Cheng Liou Wen-Chou Tsai Hao-Hsuan Yen Yung-Chia Chang
author_sort	Yi-Cheng Liou
title	Preparation and Properties of (YCa)(TiMn)O3−d Ceramics Interconnect of Solid Oxide Fuel Cells
title_short	Preparation and Properties of (YCa)(TiMn)O3−d Ceramics Interconnect of Solid Oxide Fuel Cells
title_full	Preparation and Properties of (YCa)(TiMn)O3−d Ceramics Interconnect of Solid Oxide Fuel Cells
title_fullStr	Preparation and Properties of (YCa)(TiMn)O3−d Ceramics Interconnect of Solid Oxide Fuel Cells
title_full_unstemmed	Preparation and Properties of (YCa)(TiMn)O3−d Ceramics Interconnect of Solid Oxide Fuel Cells
title_sort	preparation and properties of (yca)(timn)o3−d ceramics interconnect of solid oxide fuel cells
publisher	MDPI AG
series	Materials
issn	1996-1944
publishDate	2015-07-01
description	(YCa)(TiMn)O3–d ceramics prepared using a reaction-sintering process were investigated. Without any calcination involved, the mixture of raw materials was pressed and sintered directly. Y2Ti2O7 instead of YTiO3 formed when a mixture of Y2O3 and TiO2 with Y/Ti ratio 1/1 were sintered in air. Y2Ti2O7, YTiO2.085 and some unknown phases were detected in Y0.6Ca0.4Ti0.6Mn0.4O3–d. Monophasic Y0.6Ca0.4Ti0.4Mn0.6O3–d ceramics were obtained after 1400–1500 °C sintering. Dense Y0.6Ca0.4Ti0.4Mn0.6O3–d with a density 4.69 g/cm3 was observed after 1500 °C/4 h sintering. Log σ for Y0.6Ca0.4Ti0.6Mn0.4O3–d increased from –3.73 Scm–1 at 350 °C to –2.14 Scm–1 at 700 °C. Log σ for Y0.6Ca0.4Ti0.4Mn0.6O3–d increased from –2.1 Scm–1 at 350 °C to –1.36 Scm–1 at 700 °C. Increasing Mn content decreased activation energy Ea and increased electrical conductivity. Reaction-sintering process is proved to be a simple and effective method to obtain (YCa)(TiMn)O3–d ceramics for interconnects in solid oxide fuel cells.
topic	(YCa)(TiMn)O3−d interconnect solid oxide fuel cells
url	http://www.mdpi.com/1996-1944/8/7/4239
work_keys_str_mv	AT yichengliou preparationandpropertiesofycatimno3dceramicsinterconnectofsolidoxidefuelcells AT wenchoutsai preparationandpropertiesofycatimno3dceramicsinterconnectofsolidoxidefuelcells AT haohsuanyen preparationandpropertiesofycatimno3dceramicsinterconnectofsolidoxidefuelcells AT yungchiachang preparationandpropertiesofycatimno3dceramicsinterconnectofsolidoxidefuelcells
_version_	1725584860349726720

Preparation and Properties of (YCa)(TiMn)O3−d Ceramics Interconnect of Solid Oxide Fuel Cells

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