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Volume 39 Issue 2
Apr.  2021
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WANG Piao-piao, CHEN Peng-qi, FANG Qing-qing, ZHANG Mei, HONG Tao, CHENG Ji-gui. Preparation and performance of SUS430-Sr2Fe1.5Mo0.5O6‒δ stainless steel-ceramic composite interconnect materials for solid oxide fuel cell[J]. Powder Metallurgy Technology, 2021, 39(2): 99-106. DOI: 10.19591/j.cnki.cn11-1974/tf.2020120011
Citation: WANG Piao-piao, CHEN Peng-qi, FANG Qing-qing, ZHANG Mei, HONG Tao, CHENG Ji-gui. Preparation and performance of SUS430-Sr2Fe1.5Mo0.5O6‒δ stainless steel-ceramic composite interconnect materials for solid oxide fuel cell[J]. Powder Metallurgy Technology, 2021, 39(2): 99-106. DOI: 10.19591/j.cnki.cn11-1974/tf.2020120011
shu

Preparation and performance of SUS430-Sr2Fe1.5Mo0.5O6‒δ stainless steel-ceramic composite interconnect materials for solid oxide fuel cell

  • 1.

    School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China

  • 2.

    Powder Metallurgy Engineering and Technology Research Center of Anhui Province, Hefei University of Technology, Hefei 230009, China

  • 3.

    National–Local Joint Engineering Research Centre of Nonferrous Metals and Processing Technology, Hefei University of Technology, Hefei 230009, China

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  • Corresponding author:

    CHENG Ji-gui, E-mail: jgcheng@hfut.edu.cn

  • Received Date: December 21, 2020
  • Available Online: March 26, 2021
    Graphical Abstract
    • Abstract
  • The SUS430-Sr2Fe1.5Mo0.5O6−δ (SUS430-SFM) stainless steel-ceramic composite connector materials for solid oxide fuel cell (SOFC) were prepared by a compaction-sintering-coating method, using SUS430 stainless powders and Sr2Fe1.5Mo0.5O6−δ (SFM) ceramic powders as the raw materials. Microstructure, oxidation resistance, and electrical conductivity of the sintered SUS430 and SUS430-SFM samples were characterized. The results show that the SFM coating and the SUS430 substrate show a matching thermal expansion coefficient (TEC), and there is a good combination between the coating and the substrate. The oxidation rate constant of the SUS430-SFM sample is about 3.66×10−14 g2∙cm−4∙s−1 after oxidation at 800 ℃ for 140 h in air, which is about 50% lower than that of the SUS430 sample (2.42×10−14 g2∙cm−4∙s−1). The area specific resistance (ASR) of the SUS430-SFM sample also reduces from 81 mΩ∙cm2 (SUS430 sample) to 2.6 mΩ∙cm2. The present work indicates that the SFM coating can effectively improve the oxidation resistance and the electrical conductivity of the SUS430 stainless substrate.
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    • References (25)
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