OXIDATION KINETICS BEHAVIOR AND ELECTRICAL PROPERTY OF MnCO2O4 SPINEL AS A COATING MATERIAL FOR METALLIC INTERCONNECTS

doi:10.11900/0412.1961.2015.00449

Acta Metall Sin

2016, Vol. 52

Issue (3): 355-360 DOI: 10.11900/0412.1961.2015.00449

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OXIDATION KINETICS BEHAVIOR AND ELECTRICAL PROPERTY OF MnCO₂O₄ SPINEL AS A COATING MATERIAL FOR METALLIC INTERCONNECTS

Wenying ZHANG¹(

),Jun LI²,Bo ZHOU¹

1 School of Mechanical Engineering and Electronic Information, China University of Geosciences, Wuhan 430074, China
2 State Key Laboratory of Materials Processing and Die&Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

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Wenying ZHANG, Jun LI, Bo ZHOU. OXIDATION KINETICS BEHAVIOR AND ELECTRICAL PROPERTY OF MnCO₂O₄ SPINEL AS A COATING MATERIAL FOR METALLIC INTERCONNECTS. Acta Metall Sin, 2016, 52(3): 355-360.

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Abstract

MnCo₂O₄spinel was coated on the surface of SUS 430 alloy by using the sol-gel method. The oxidation kinetics behavior and electrical property of coated SUS 430 alloy in solid oxide fuel cells (SOFCs) cathode atmosphere were investigated. XRD, EDS and SEM were used to characterize the phase structure, surface and cross-section morphology, and composition of the surface oxides; the area specific resistance (ASR) of the surface oxides was measured by using the four-probe direct current technique. The result shows that a 2 μm thick oxide scale, mainly consisting of an inner layer of Mn-Cr spinel and an outer layer of doped Mn-Co spinel, was formed during cyclic oxidation at 750 ℃ in air for 1000 h. The growth of Cr₂O₃ and Fe₂O₃ was depressed. The oxidation kinetics obeys the parabolic law with two rate constants 3.74×10^-15g²/(cm⁴s)(0~200 h) and 7.06×10^-15g²/(cm⁴s) (200~1000 h), respectively, which is 1 order of magnitude lower than that of the SUS 430 alloy without coating. The ASR is in the range of 5.21~22.65 mΩcm²at 600~800 ℃. MnCo₂O₄ coating was proved to be effective in enhancing the oxidation resistance and electrical property of SUS 430 alloy.

Key words: solid oxide fuel cell metallic interconnect spinel MnCo2O4 oxidation kinetics area specific resistance

Received: 21 August 2015

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	Wenying ZHANG
	Jun LI
	Bo ZHOU

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https://www.ams.org.cn/EN/10.11900/0412.1961.2015.00449 OR https://www.ams.org.cn/EN/Y2016/V52/I3/355

Table 1 EDS analysis results corresponding to points A, B and area C in Fig.2 (mass fraction / %)

Fig.1 XRD spectra of MnCo₂O₄ coating on SUS 430 alloy before and after oxidation at 750 ℃ in air for 1000 h

Fig.2 Surface morphologies of MnCo₂O₄ coating before (a) and after (b) oxidation at 750 ℃ in air for 1000 h

Fig.3 Cross-sectional morphology (a) and EDS analysis along the line in Fig.3a (b) of MnCo₂O₄ coating after oxidation at 750 ℃ in air for 1000 h

Fig.4 Square of oxidation mass gain of SUS 430 alloy with and without MnCo₂O₄ coating as a function of oxidation time at 750 ℃ in air (K_p1 and K_p2 correspond to oxidation rate constants at 0~200 h and 200~1000 h, respectively)

Fig.5 Area specific resistance (ASR) of MnCo₂O₄ coating as a function of measurement temperature (T) after oxidation at 750 ℃ in air

[1]	Yang Z G.Int Mater Rev, 2008; 53: 39
[2]	Zhu W Z, Deevi S C.Mater Res Bull, 2003; 38: 957
[3]	Fergus J W.Mater Sci Eng, 2005; A397: 271
[4]	Toji A, Uehara T.ECS Trans, 2007; 7: 2117
[5]	Han M F, Peng S P, Wang Z L, Yang Z B, Chen X.J Power Sources, 2007; 164: 278
[6]	Pu J, Li J, Hua B, Xie G Y.J Power Sources, 2006; 158: 354
[7]	Stanislowski M, Wessel E, Hilpert K, Markus T, Singheiser L.J Electrochem Soc, 2007; 154: A295
[8]	Tucker M C, Kurokawa H, Jacobson C P, De Jonghe L C, Visco S J.J Power Sources, 2006; 160: 130
[9]	Shaigan N, Qu W, Ivey D G, Chen W.J Power Sources, 2010; 195: 1529
[10]	Qu W, Li J, Ivey D G, Hill J M.J Power Sources, 2006; 157: 335
[11]	Oishi N, Namikawa T, Yamazaki Y.Surf Coat Technol, 2000; 132(1): 58
[12]	Roure S, Czerwinski F, Petric A.Oxid Met, 1994; 42(1~2): 75
[13]	Johnson C, Gemmen R, Orlovskaya N.Compos Part Eng, 2004; 35B: 167
[14]	Chu C, Wang J, Lee S.Int J Hydrogen Energy, 2008; 33: 2536
[15]	Yang Z, Xia G, Maupin G D, Stevenson J W.J Electrochem Soc, 2006; 153: A1852
[16]	Shaigan N, Ivey D G, Chen W.J Power Sources, 2008; 183: 651
[17]	Qu W, Jian L, Hill J W, Ivey D G.J Power Sources, 2006; 153: 114
[18]	Wei W, Chen W, Ivey D G.J Power Sources, 2009; 186: 428
[19]	Hua B, Pu J, Gong W, Zhang J F, Lu F S, Jian L.J Power Sources, 2008; 185: 419
[20]	Bateni M R, Wei P, Deng X, Petric A.Surf Coat Technol, 2007; 201: 4677
[21]	Hua B, Zhang J F, Lu F S, Kong Y H, Pu J, Li J.Acta Metall Sin, 2009; 45: 605
[21]	(华斌, 张建福, 卢凤双, 孔永红, 蒲健, 李箭. 金属学报, 2009; 45: 605)
[22]	Shannon R D. Acta Cryst, 1976; 32A: 751
[23]	Li J, Pu J, Hua B, Xie G Y.J Power Sources, 2006; 159: 641
[24]	Quadakkers W J, Piron-Abellan J, Shemet V.Mater High Temp, 2003; 20: 115

[1]	Yin BAI, Zhengdong LIU, Jianxin XIE, Hansheng BAO, Zhengzong CHEN. Effect of Pre-Oxidation Treatment on the Behavior of High Temperature Oxidation in Steam of G115 Steel[J]. 金属学报, 2018, 54(6): 895-904.
[2]	WANG Songlin, FENG Yi, WANG Dongsheng, WANG Jingwen. THREE-LAYER CO-FIRING FABRICATION OF LaCrO₃-BASED CERAMIC INTERCONNECT, COMPOSITE ANODE SUPPORT AND YSZ ELECTROLYTE[J]. 金属学报, 2012, 48(5): 587-592.
[3]	QIU Jun ZHAO Wenjin Thomas Guilbert Jean-Luc Bechade. HIGH TEMPERATURE OXIDATION BEHAVIOURS OF THREE ZIRCONIUM ALLOYS[J]. 金属学报, 2011, 47(9): 1216-1220.
[4]	HUA Bin ZHANG Jianfu LU Fengshuang KONG Yonghong PU Jian LI Jian. EFFECT OF LaCoO₃ COATING ON THE INTERMEDIATE TEMPERATURE OXIDATION BEHAVIOR OF SUS 430 METALLIC INTERCONNECT[J]. 金属学报, 2009, 45(5): 605-609.
[5]	. [J]. 金属学报, 2007, 43(6): 625-630 .
[6]	LI Xiangyang;ZHANG Yonggang;CHEN Changqi(Beijing University of Aeronautics andAstronautics; Beijing 100083); ZHANG Xiaoji;ZHANG Tonghe;ZHANG Huixing (Beijing Normal University; Beiing 100875). OXIDATION MECHANISM OF BINARY Ti-Al ALLOYS AT ELEVATED TEMPERATURE[J]. 金属学报, 1997, 33(9): 964-970.
[7]	XING Pengfei; ZHAI Yuchun; TIAN Yanwen; GENG Yan; CHEN Feng(Northeastern University; Shenyang 110006)(Manuscript received 1995-04-24; in revised form 1995-10-16). STUDY ON THE OXIDATION KINETICS OF WS_2 IN OPEN AIR[J]. 金属学报, 1996, 32(2): 187-190.

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