Fabrication of Lanthanum Strontium Manganite Ceramics via Agar Gel Casting and Solid State Sintering

Fabricating lanthanum strontium manganite (LSM) ceramics with certain shapes is important for the design and construction of high-temperature energy conversion and storage devices. Here, we describe a low-cost and environmentally friendly method for fabricating LSM ceramics via agar gel casting and...

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Main Authors:	Shiyu Zhang, Cheng Peng, Chengzhi Guan, Guoping Xiao, Jianqiang Wang
Format:	Article
Language:	English
Published:	MDPI AG 2019-03-01
Series:	Materials
Subjects:	gel casting lanthanum strontium manganite agar ceramic formation solid state sintering cathode-supported SOFCs
Online Access:	http://www.mdpi.com/1996-1944/12/6/848

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record_format	Article
spelling	doaj-e88c711a0ef5415cbf0d039438fd46c52020-11-24T22:19:29ZengMDPI AGMaterials1996-19442019-03-0112684810.3390/ma12060848ma12060848Fabrication of Lanthanum Strontium Manganite Ceramics via Agar Gel Casting and Solid State SinteringShiyu Zhang0Cheng Peng1Chengzhi Guan2Guoping Xiao3Jianqiang Wang4Department of Molten Salt Chemistry and Engineering, and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaDepartment of Molten Salt Chemistry and Engineering, and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaDepartment of Molten Salt Chemistry and Engineering, and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaDepartment of Molten Salt Chemistry and Engineering, and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaDepartment of Molten Salt Chemistry and Engineering, and Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, ChinaFabricating lanthanum strontium manganite (LSM) ceramics with certain shapes is important for the design and construction of high-temperature energy conversion and storage devices. Here, we describe a low-cost and environmentally friendly method for fabricating LSM ceramics via agar gel casting and high temperature sintering. This new approach uses temperature tuning to fabricate LSM gel bodies, not only by manufacturing in the secondary process but also by remolding and recycling during the gel casting process. The effect of the sintering temperature on the properties of LSM ceramics was investigated as well. As a result, the porosity and compressive strength of LSM ceramics sintered at 1000 °C are ~60% and 5.6 MPa, respectively. When the sintering temperature increases to 1200 °C, the porosity decreases to ~28%, whereas the compressive strength increases to 25 MPa, which is able to meet the requirement of cathode-supported SOFCs (solid oxide fuel cells).http://www.mdpi.com/1996-1944/12/6/848gel castinglanthanum strontium manganiteagarceramic formationsolid state sinteringcathode-supported SOFCs
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Shiyu Zhang Cheng Peng Chengzhi Guan Guoping Xiao Jianqiang Wang
spellingShingle	Shiyu Zhang Cheng Peng Chengzhi Guan Guoping Xiao Jianqiang Wang Fabrication of Lanthanum Strontium Manganite Ceramics via Agar Gel Casting and Solid State Sintering Materials gel casting lanthanum strontium manganite agar ceramic formation solid state sintering cathode-supported SOFCs
author_facet	Shiyu Zhang Cheng Peng Chengzhi Guan Guoping Xiao Jianqiang Wang
author_sort	Shiyu Zhang
title	Fabrication of Lanthanum Strontium Manganite Ceramics via Agar Gel Casting and Solid State Sintering
title_short	Fabrication of Lanthanum Strontium Manganite Ceramics via Agar Gel Casting and Solid State Sintering
title_full	Fabrication of Lanthanum Strontium Manganite Ceramics via Agar Gel Casting and Solid State Sintering
title_fullStr	Fabrication of Lanthanum Strontium Manganite Ceramics via Agar Gel Casting and Solid State Sintering
title_full_unstemmed	Fabrication of Lanthanum Strontium Manganite Ceramics via Agar Gel Casting and Solid State Sintering
title_sort	fabrication of lanthanum strontium manganite ceramics via agar gel casting and solid state sintering
publisher	MDPI AG
series	Materials
issn	1996-1944
publishDate	2019-03-01
description	Fabricating lanthanum strontium manganite (LSM) ceramics with certain shapes is important for the design and construction of high-temperature energy conversion and storage devices. Here, we describe a low-cost and environmentally friendly method for fabricating LSM ceramics via agar gel casting and high temperature sintering. This new approach uses temperature tuning to fabricate LSM gel bodies, not only by manufacturing in the secondary process but also by remolding and recycling during the gel casting process. The effect of the sintering temperature on the properties of LSM ceramics was investigated as well. As a result, the porosity and compressive strength of LSM ceramics sintered at 1000 °C are ~60% and 5.6 MPa, respectively. When the sintering temperature increases to 1200 °C, the porosity decreases to ~28%, whereas the compressive strength increases to 25 MPa, which is able to meet the requirement of cathode-supported SOFCs (solid oxide fuel cells).
topic	gel casting lanthanum strontium manganite agar ceramic formation solid state sintering cathode-supported SOFCs
url	http://www.mdpi.com/1996-1944/12/6/848
work_keys_str_mv	AT shiyuzhang fabricationoflanthanumstrontiummanganiteceramicsviaagargelcastingandsolidstatesintering AT chengpeng fabricationoflanthanumstrontiummanganiteceramicsviaagargelcastingandsolidstatesintering AT chengzhiguan fabricationoflanthanumstrontiummanganiteceramicsviaagargelcastingandsolidstatesintering AT guopingxiao fabricationoflanthanumstrontiummanganiteceramicsviaagargelcastingandsolidstatesintering AT jianqiangwang fabricationoflanthanumstrontiummanganiteceramicsviaagargelcastingandsolidstatesintering
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Fabrication of Lanthanum Strontium Manganite Ceramics via Agar Gel Casting and Solid State Sintering

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