Download file (12.5MB)
Download as zip (12.2MB)

コレクション

引用

説明:

This study investigates spinel oxide coatings derived from medium- to high-entropy alloy systems for solid oxide fuel cell interconnect applications. Alloy coatings of Fe-Mn-Co, Fe-Mn-Co-Cu, and Fe-Mn-Co-Cu-Ni are deposited on SUS430 stainless steel substrates utilizing a magnetron sputtering system and subjected to isothermal oxidation at 650 °C. Microstructural and phase analyses reveal the anomalous formation of hematite layers and Cr-Fe mixed oxide structures in Fe-Mn-Co and Fe-Mn-Co-Cu coatings, which indicates greater Fe diffusion at the substrate/coating interface during the early stage of oxidation comparing to that of Fe-Mn-Co-Cu-Ni coating. Theoretical calculations confirm that the hematite and Cr-Fe oxides significantly increase the area specific resistance of Fe-Mn-Co and Fe-Mn-Co-Cu coated steels at 650 °C. Notably, the Fe-Mn-Co-Cu-Ni coating can exhibit superior electrical conductivity, and resistances to oxidation and Cr-evaporation. This study demonstrates that entropy-engineered composition can promote the formation of single phase spinel, enhance phase stability, and can potentially be beneficial for long-term performance of solid oxide fuel cell as coating material for interconnects.

権利情報:

• Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  

キーワード: Solid oxide fuel cell, High-entropy alloy, Spinel coating, Area specific resistance, Cr-evaporation

刊行年月日: 2026-02-27

出版者: Elsevier BV

掲載誌:

• Applied Surface Science Advances (ISSN: 26665239) vol. 32 100956

研究助成金:

• Executive Yuan Republic of China Ministry of Education
• National Science and Technology Council NSTC 114-2221-E-007-085-MY3

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1016/j.apsadv.2026.100956

関連資料:

その他の識別子:

連絡先:

更新時刻: 2026-04-05 13:43:35 +0900

MDRでの公開時刻: 2026-04-06 12:26:13 +0900