MnCo2O4涂层对SUS430合金连接体的表面改性研究

doi:10.15541/jim20150274

无机材料学报 ›› 2016, Vol. 31 ›› Issue (1): 63-68.DOI: 10.15541/jim20150274

MnCo₂O₄涂层对SUS430合金连接体的表面改性研究

曹希文, 罗凌虹, 徐序, 程亮, 石纪军, 余辉

(景德镇陶瓷学院新能源材料研究室, 景德镇333001)

收稿日期:2015-06-09 修回日期:2015-07-31 出版日期:2016-01-20 网络出版日期:2015-12-15
作者简介:曹希文(1989–), 男, 硕士研究生.
基金资助:
国家自然科学基金(51462011, 51262010, 51162014);江西省主要学科学术和技术带头人培养计划项目

Surface Modification of SUS430 Interconnect with MnCo₂O₄ Coating

CAO Xi-Wen, LUO Ling-Hong, XU Xu, CHENG Liang, SHI Ji-Jun, YU Hui

(New Energy Materials Lab, Jingdezhen Ceramic Institute, Jingdezhen 333001, China)

Received:2015-06-09 Revised:2015-07-31 Published:2016-01-20 Online:2015-12-15
About author:CAO Xi-Wen.
Supported by:
National Natural Science Foundation of China(51462011, 51262010, 51162014);Training Program of Academic and Technical Leaders in Jiangxi Province

摘要/Abstract

摘要：

采用溶胶-凝胶法制得MnCo₂O₄纳米粉体, 通过XRD和TEM分析了粉体的物相和形貌; 通过添加适量乙基纤维素和松油醇经研磨制成浆料, 并采用丝网印刷法涂覆于SUS430基片上, 在900℃下95%N₂+5%H₂气氛中保温3 h, 再于800℃空气气氛中保温10 h烧结得到涂层。采用SEM对涂层的表面和断面进行了观察, 在750℃空气气氛下测试了SUS430/MnCo₂O₄样品的导电性能和抗氧化性能, 最后采用EDS对涂层的断面进行分析。结果表明: MnCo₂O₄粉体为单一的立方尖晶石相, 晶粒大小均匀, 粒径约150 nm; MnCo₂O₄涂层致密,与基体紧密结合且厚度均匀。SUS430/MnCo₂O₄样品在750℃空气气氛下经1000 h氧化后, 氧化增重量仅为0.15 mg/cm², 是SUS430合金氧化增重量的1/6; 面比电阻值为0.026 Ω·cm², 比SUS430合金的面比电阻值低了两个数量级; EDS结果表明: Cr元素主要分布在涂层与合金的界面, 在涂层内部无分布。研究显示, MnCo₂O₄涂层能显著降低SUS430合金基体的氧化速率, 有效改善其在高温下的导电性能, 并成功抑制Cr元素的挥发。

关键词: SUS430合金, MnCo2O4涂层, 高温抗氧化性, 导电性

Abstract:

Nano-scale MnCo₂O₄ powder was prepared by means of Sol-Gel method. XRD and TEM were employed to analyze phase composition and microstructure of the MnCo₂O₄ powder. A paste was made of the powder by adding a proper amount of ethyecellulose as binder and terpilenol. The paste was coated on the SUS430 substrate by screen printing method. The MnCo₂O₄ coating on SUS430 alloy was sintered under the atmosphere of 95%N₂ + 5%H₂ at 900℃ for 3 h and then at 800℃ in air for 10 h. SEM was employed to observe the surface and cross-section of the sample with coating. The oxidation resistance and the area specific resistance(ASR) value of the sample was characterized at 750℃ in air. Finally, EDS was employed to analyze the cross-section of the sample. The results show that the powder is in single cubic spinel phase. The grains are homogeneous with size of about 150 nm. The coating that is dense contacts to alloy matrix closely with uniform thickness. After oxidation at 750℃ for 1000 h in air, the weight gain of SUS430/MnCo₂O₄sample is 0.15 mg/cm², which is only one-sixth that of the SUS430 alloy. The ASR value is 0.026 Ω·cm², two order of magnitude lower than that of SUS430 alloy. EDS results show that Cr is mainly distributed in interface between the coating and alloy, with no distribution in the coating. The MnCo₂O₄coating can effectively reduce the oxidation rate and improve the conductivity of SUS430 alloy significantly at high temperature, and restrain the volatilization of Cr successfully.

Key words: SUS430 alloy, MnCo2O4 coating, high temperature oxidation resistance, electrical conductivity

中图分类号:

TQ174

曹希文, 罗凌虹, 徐序, 程亮, 石纪军, 余辉. MnCo₂O₄涂层对SUS430合金连接体的表面改性研究[J]. 无机材料学报, 2016, 31(1): 63-68.

CAO Xi-Wen, LUO Ling-Hong, XU Xu, CHENG Liang, SHI Ji-Jun, YU Hui. Surface Modification of SUS430 Interconnect with MnCo₂O₄ Coating[J]. Journal of Inorganic Materials, 2016, 31(1): 63-68.

图/表 6

图1 溶胶-凝胶法制备的MnCo2O4粉体的XRD图谱

Fig. 1 XRD pattern of the MnCo2O4 powder prepared by Sol-Gel

图2 MnCo2O4粉体的透射电镜照片(a)和(b), 高分辨透射电镜照片(c)和电子衍射照片(d)

Fig. 2 TEM images of MnCo2O4 powder (a, b), HRTEM image (c) and electron diffraction pattern (d) of MnCo2O4 powder

图3 MnCo2O4表面SEM照片(a)和(b), SUS430/MnCo2O4断面SEM照片(c)和(d)

Fig. 3 SEM images of MnCo2O4 surface (a, b), SEM images of cross-section of SUS430/MnCo2O4 (c, d)

图4 在750℃下SUS430合金和SUS430/ MnCo2O4试样随时间的氧化增重

Fig. 4 Time dependent weight gain of SUS430 alloy and SUS430/ MnCo2O4 sample at 750℃

图5 在750℃下SUS430合金和SUS430/MnCo2O4试样ASR值随时间的变化

Fig. 5 Time dependent ASR of SUS430 alloy and SUS430/ MnCo2O4 sample at 750℃

图6 SUS430/MnCo2O4试样断面的SEM/EDS分析

Fig. 6 SEM/EDS analysis of cross-section of SUS430/ MnCo2O4 sample (a) SEM cross-section and (b) EDS line scan along line A-A

参考文献 17

[1]	WANG SONG-LIN,FENG YI,WANG DONG-SHENG, et al.Fabrication of dense La0.7Ca0.3Cr0.97O3-δ interconnect membrane on novel sofc composite support by co-firing.Journal of Inorganic Materials, 2012, 27(9): 911-916.
[2]	WU JUNWEI, LIU XINGBO.Recent development of SOFC metallic interconnect.Journal of Materials Science & Technology, 2010, 26(4): 293-305.
[3]	HORITA T, KISHIMOTO H, YAMAJI K, et al.Evaluation of Laves-phase forming Fe-Cr alloy for SOFC interconnects in reducing atmosphere.J. Power Sources, 2008, 176(1): 54-61.
[4]	LIU Y.Performance evaluation of several commercial alloys in a reducing environment.J. Power Sources, 2008, 179(1): 286-291.
[5]	LIU K, LUO J, JOHNSONC C, et al.Conducting oxide formation and mechanical endurance of potential solid-oxide fuel cell interconnects in coal syngas environment.J. Power Sources, 2008, 183(1): 247-252.
[6]	PU JIAN, LI JIAN, HUA BIN, et al.Oxidation kinetics and phase evolution of a Fe-16Cr alloy in simulated SOFC cathode atmosphere. J. Power Sources, 2006, 158(1): 354-360.
[7]	YANG ZHENGUO, XIA GUAN-GUANG, GARY D.MAUPIN, et al. Conductive protection layers on oxidation resistant alloys for SOFC interconnect applications.Surface & Coatings Technology, 2006, 201(7): 4476-4483.
[8]	张卫伟, 詹肇麟. 涂层材料在固体氧化物电池金属连接体上的应用. 热加工工艺, 2013, 42(10): 27-31.
[9]	NIMA SHAIGAN, WEI QU, DOUGLAS G.IVEY, et al. A review of recent progress in coatings, surface modications and alloy developments for solid oxide fuel cell ferriti cstainless steel interconnects.J. Power Sources, 2010, 195(6): 1529-1542.
[10]	徐序, 罗凌虹, 吴也凡, 等. SUS430合金连接体La0.8Sr0.2MnO3涂层的制备及微观结构分析. 陶瓷学报, 2010, 31(4): 517-522.
[11]	王莹莹, 罗凌虹, 徐序, 等. LSM/SUS430复合连接体材料的溶胶-凝胶法制备及性能研究. 陶瓷学报, 2013, 49(7): 38-40.
[12]	TSAI MING-JUI, LEE SHYONG, CHU CHUN-LIN, et al.High temperature oxidation behavior of interconnect coated with LSCF and LSM for solid oxide fuel cell by screen printing.Applied Surface Science, 2010, 256(6): 1817-1824.
[13]	韩敏芳, 李震, 杜晓佳, 等. 固体氧化物燃料电池合金连接体涂层材料研究进展. 稀有金属材料与工程, 2009, 38(S2): 708-711.
[14]	XU YANJIE, WEI ZHAOYIN, WANG SHAORONG, et al.Cu doped Mn-Co spinel protective coating on ferritic stainless steels for SOFC interconnect applications.Solid State Ionics, 2011, 192(1): 561-564.
[15]	YANG ZHENGUO, XIA GUANGUANG, NIE IIMIN, et al.(Mn,Co)3O4 spinel coatings on ferritic stainless steels for SOFC interconnect applications.International Journal of Hydrogen Energy, 2007, 32(16): 3648-3654.
[16]	HUA BIN, KONG YONGHONG, LU SHUANGFENG, et al.The electrical property of MnCo2O4 and its application for SUS430 metallic interconnect.Materials Science, 2010, 55(33): 3831-3837.
[17]	FERGUS J W.Metallic interconnects for solid oxide fuel cells.Mat. Sci. Eng. A, 2005, 397(1/2): 271-283.

MnCo₂O₄涂层对SUS430合金连接体的表面改性研究

Surface Modification of SUS430 Interconnect with MnCo₂O₄ Coating

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