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Effect of TiC particles size on the oxidation resistance of TiC/hastelloy composites applied for intermediate temperature solid oxide fuel cell interconnects
Qi, Qian; Wang, Lujie; Liu, Yan; Huang, Zhengren
2019-03-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume778Pages:811
SubtypeArticle
AbstractTiC/hastelloy composites are proposed as promising intermediate temperature solid oxide fuel cell (IT-SOFC) interconnects, and the oxidation resistance optimization of composites is crucial for the operation stability of IT-SOFC. Interparticles distance of TiC particles, determined by TiC content and particle size (d(TiC)), is found to significantly influence the oxidation resistance of composites. For composites with certain content of TiC, as d(TiC) decreases from 7.22 to 4.40 mu m, mass gain (800 degrees C/100h) increases from 2.54 to 4.02 mg cm(-2), while d(TiC) decreases from 3.10 to 2.21 mu m, mass gain reduces from 2.44 to 1.05 mg cm(-2). The opposite variation trend is resulted from the different microstructure evolution process of oxide scale as a function of d(TiC). Critical d(0) is speculated to exist for composites with a given TiC content, and dense TiO2-Cr2O3 layer begins to form on it. To improve the oxidation resistance of TiC/hastelloy composites, d(TiC) should be much greater (or smaller) than d(0) to facilitate the formation of dense NiO (or TiO2-Cr2O3) layer in oxide scale. (C) 2018 Elsevier B.V. All rights reserved.
KeywordSolid oxide fuel cell Interconnect TiC/Hastelloy composites TiC particle size Oxidation resistance
DOI10.1016/j.jallcom.2018.11.224
Language英语
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
PublisherELSEVIER SCIENCE SA
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27260
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Qi, Qian,Wang, Lujie,Liu, Yan,et al. Effect of TiC particles size on the oxidation resistance of TiC/hastelloy composites applied for intermediate temperature solid oxide fuel cell interconnects[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2019,778:811.
APA Qi, Qian,Wang, Lujie,Liu, Yan,&Huang, Zhengren.(2019).Effect of TiC particles size on the oxidation resistance of TiC/hastelloy composites applied for intermediate temperature solid oxide fuel cell interconnects.JOURNAL OF ALLOYS AND COMPOUNDS,778,811.
MLA Qi, Qian,et al."Effect of TiC particles size on the oxidation resistance of TiC/hastelloy composites applied for intermediate temperature solid oxide fuel cell interconnects".JOURNAL OF ALLOYS AND COMPOUNDS 778(2019):811.
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