Ni-Mn3O4-CeO2 composite coating on ferritic stainless steel interconnects

被引：16

作者：

Zhu, Huimin ^{[1
]}

Geng, Shujiang ^{[1
]}

Chen, Gang ^{[1
]}

Wang, Fuhui ^{[1
]}

机构：

[1] Northeastern Univ, Shenyang Natl Lab Mat Sci, 3-11 Wenhua Rd, Shenyang 110819, Peoples R China

来源：

CORROSION SCIENCE | 2022年 / 194卷

基金：

中国国家自然科学基金;

关键词：

Solid oxide fuel cells; Interconnect; Ni-Mn3O4-CeO2 composite coating; High temperature oxidation resistance; ASR; HIGH-TEMPERATURE OXIDATION; ELECTRICAL-CONDUCTIVITY; IMPURITY DIFFUSION; COMPOSITE COATINGS; REACTIVE ELEMENTS; POINT-DEFECTS; BEHAVIOR; ALLOYS; PREOXIDATION; ADDITIONS;

D O I：

10.1016/j.corsci.2021.109932

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ni-Mn3O4 and Ni-Mn3O4-CeO2 composite coatings are fabricated on SUS 430 steel via electrophoresis/electrodeposition. The initial oxidation results reveal that the CeO2 deposited by electrophoresis retards the interdiffusion between coating and steel. Besides thin scale with Cr2O3 inner layer and NiO/(Ni,Mn,Fe)3O4 outer layer, oxide nodules form at the edge of Ni-Mn3O4 coated steel oxidized for 3 weeks. A tri-layer oxide structure with (Ni,Mn,Cr)3O4 outer layer, NiO/(Ni,Mn,Cr)3O4 middle layer and Cr2O3 inner layer is developed on the Ni-Mn3O4CeO2 coated steel oxidized for 10 weeks. CeO2 effectively improves high temperature oxidation resistance. An area specific resistance (ASR) of 25.1 m omega cm2 is achieved.

引用

页数：12

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