Preparation and performances of Cu-Co spinel coating on ferritic stainless steel for solid oxide fuel cell interconnect
Preparation and performances of Cu-Co spinel coating on ferritic stainless steel for solid oxide fuel cell interconnect
复制标题
固体氧化物燃料电池互连铁素体不锈钢Cu-Co尖晶石涂层的制备及性能
DOI：
10.1016/j.ijhydene.2017.12.133
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发表时间：
2018
影响因子：
7.2
通讯作者：
Zeng Chaoliu
中科院分区：
文献类型：
--
作者：
Zhang X;You P F;Zhang H L;Yang X G;Luo M Q;Zeng Chaoliu
通过在铁素体不锈钢表面电镀铜合金层，然后进行氧化处理，在铁素体不锈钢表面制备了致密、附着力良好的铜尖晶石涂层。在800℃空气中氧化2小时后，CoSingle键铜合金氧化成由较薄的CuO外层、中厚的Cu0.92Co2.08O4层和内层Co3O4组成的三层结构。在800℃空气中氧化500h后，三层氧化物结构转变为双层氧化膜，外层为(Co，Cr，Cu，Mn，Fe)3O4尖晶石，内层为富铬氧化层。Cusingle结合剂Co涂层提高了合金的抗氧化性，并起到了阻止铬元素向外迁移的扩散屏障的作用。同时，Cusingle粘结Co涂层合金的结垢面积比电阻(ASR)显著低于裸样。
A compact and adherent Cosingle bondCu spinel coating on ferritic stainless steel was developed by electroplating a Cosingle bondCu alloy layer followed by oxidation. The Cosingle bondCu alloy was oxidized into a three-layer structure consisted of a thinner CuO outer layer, a middle thicker Cu0.92Co2.08O4layer and an inner Co3O4layer after an oxidation treatment of 2 h at 800 °C in air. The three-layer oxide structure was transformed into a double-layer scale with a (Co,Cr,Cu,Mn,Fe)3O4spinel outer layer and an inner Cr-rich oxide layer after an oxidation of 500 h at 800 °C in air. The Cusingle bondCo coating enhanced the oxidation resistance of the alloy and served as a diffusion barrier against the outward migration of Cr elements. Meanwhile, the area specific resistance (ASR) of the scale for the Cusingle bondCo coated alloy was significantly lower than that for the bare sample.