单相双稀土改性SrZrO3热障涂层的热物理性能

doi:10.15541/jim20180276

无机材料学报 ›› 2019, Vol. 34 ›› Issue (4): 394-400.DOI: 10.15541/jim20180276

单相双稀土改性SrZrO₃热障涂层的热物理性能

马伯乐^1,²,马文^1,²(),黄威^1,²,白玉^1,²,贾瑞灵^1,²,董红英^2,³

^1. 内蒙古工业大学材料科学与工程学院, 呼和浩特 010051
^2. 内蒙古自治区薄膜与涂层重点实验室, 呼和浩特 010051
^3. 内蒙古工业大学化工学院, 呼和浩特 010051

收稿日期:2018-06-22 修回日期:2018-08-29 出版日期:2019-04-20 网络出版日期:2019-04-15
作者简介:马伯乐(1993-), 男, 硕士研究生. E-mail:995375781@qq.com
基金资助:
国家自然科学基金(51462026);国家自然科学基金(51672136);内蒙古自然科学基金(2017MS0503)

Thermophysical Property of Single-phase Strontium Zirconate Co-doped with Double Rare-earth Oxides as a Thermal Barrier Coating Material

Bo-Le MA^1,²,Wen MA^1,²(),Wei HUANG^1,²,Yu BAI^1,²,Rui-Ling JIA^1,²,Hong-Ying DONG^2,³

^1. School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China
^2. Inner Mongolia Key Laboratory of Thin Film and Coatings Technology, Hohhot 010051, China
^3. School of Chemical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China

Received:2018-06-22 Revised:2018-08-29 Published:2019-04-20 Online:2019-04-15
Supported by:
National Natural Science Foundation of China(51462026);National Natural Science Foundation of China(51672136);Natural Science Foundation of Inner Mongolia(2017MS0503)

摘要/Abstract

摘要：

由于SrO和ZrO₂的蒸气压不同, 造成等离子喷涂SrZrO₃涂层组分偏离原始粉末化学计量比, 从而导致制备态涂层中出现第二相ZrO₂。为了获得高相稳定性的单相涂层, 实验采用固相合成法合成并经过喷雾造粒制备了双稀土改性Sr过量SrZrO₃(Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05)热喷涂粉末, 采用大气等离子喷涂方法制备了相应的涂层, 研究了单相双稀土改性SrZrO₃热障涂层的热物理性能及其热循环寿命。研究结果表明, 制备态Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05涂层中无第二相产生, 1600 ℃热处理360 h后Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05保持单相SrZrO₃结构, 高温相稳定性良好。Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05涂层的烧结系数为7.27×10 ^-6 s ^-1, 热处理360 h后该涂层的热膨胀系数为(9.0~11.0)×10 ^-6 K ^-1 (200~1400 ℃), 热导率为2.83 W/(m?K) (1000 ℃)。Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05/YSZ双层涂层的火焰循环次数为1000次, 失效区域主要发生在Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05陶瓷层内。在喷涂粉末中增加SrO的含量能够弥补在大气等离子喷涂过程中Sr元素过量挥发的问题, 成功制备了单相双稀土改性Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05热障涂层。双稀土掺杂能够明显提高涂层的热膨胀系数, 且单相双稀土改性Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05涂层的抗烧结性能明显优于SrZrO₃涂层, 但单相Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05涂层热导率比含有第二相的SrZrO₃涂层高。

关键词: 热障涂层, SrZrO₃, 热膨胀, 热导率

Abstract:

Due to the different vapor pressures between SrO and ZrO₂, composition of air plasma sprayed (APS) SrZrO₃ coating deviates from stoichiometric SrZrO₃, resulting in formation of second phase ZrO₂ in the as-sprayed SrZrO₃ coating. To obtain single-phase coating with high phase stability, the Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05 powder with excess Sr was synthesized by solid state reaction and spray drying, followed by air plasma spray to obtain the Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05 coating. Thermo-physical properties and thermal cycling behavior of the Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05 coating were investigated. Experimental results showed that the Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05 coating had no second phase and showed a good high-temperature phase stability after heat- treatment at 1600 ℃ for 360 h. The sintering rate of the as-sprayed Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05 coating was 7.27×10 ^-6 s ^-1. Thermal expansion coefficients (TECs) and thermal conductivity of the coating after heat-treatment at 1600 ℃ for 360 h were (9.0-11.0)×10 ^-6 K ^-1 (200-1400 ℃) and 2.83 W/(m?K) (1000 ℃), respectively. Thermal cycling lifetime of the Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05/YSZ double ceramic layer coating was 1000 cycles, due to failure occurring in the Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05 coating. Moreover, singe-phase Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05 coating with SrZrO₃structure could be prepared by adding excess SrO in the feedstock, which showed higher TEC by co-dopping with Yb₂O₃ and Gd₂O₃ and sintering resistance than did the SrZrO₃ coating. However, the thermal conductivity of the Sr_1.1(Zr_0.9Yb_0.05Gd_0.05)O_3.05 coating is higher than that of the SrZrO₃ coating because of the absence of the second phase.

Key words: thermal barrier coating, SrZrO₃, thermal expansion, thermal conductivity

中图分类号:

TQ174

马伯乐, 马文, 黄威, 白玉, 贾瑞灵, 董红英. 单相双稀土改性SrZrO₃热障涂层的热物理性能[J]. 无机材料学报, 2019, 34(4): 394-400.

Bo-Le MA, Wen MA, Wei HUANG, Yu BAI, Rui-Ling JIA, Hong-Ying DONG. Thermophysical Property of Single-phase Strontium Zirconate Co-doped with Double Rare-earth Oxides as a Thermal Barrier Coating Material[J]. Journal of Inorganic Materials, 2019, 34(4): 394-400.

图/表 9

图1 喷雾造粒粉末的显微形貌 (a) Sr1.1(Zr0.9Yb0.05Gd0.05)O3.05; (b) SrZrO3

Fig. 1 SEM images of two different powders

表1 喷涂工艺参数

Table 1 Parameters of spraying

Current/A	Ar/(L?min^-1)	H₂/(L?min^-1)	Spray distance/mm	Power/kW
500	40	10	100	35.8

图2 粉末和在1600 ℃热处理不同时间的涂层的XRD图谱 (a) Sr1.1(Zr0.9Yb0.05Gd0.05)O3.05; (b) SrZrO3

Fig. 2 XRD patterns of powders and coatings after heat-treatment at 1600 ℃ for different time

图3 1600 ℃热处理不同时间涂层的热膨胀曲线 (a) Sr1.1(Zr0.9Yb0.05Gd0.05)O3.05; (b) SrZrO3

Fig. 3 TECs of two different coatings after heat-treatment at 1600 ℃ for different time

图4 不同涂层的抗烧结曲线

Fig. 4 Sintering shrinkage kinetics of two different free- standing coatings

图5 1600 ℃热处理不同时间涂层的热扩散系数曲线 (a) Sr1.1(Zr0.9Yb0.05Gd0.05)O3.05; (b) SrZrO3

Fig. 5 Thermal diffusivities of two different coatings after heat-treatment at 1600 ℃ for different time

图6 涂层的密度

Fig. 6 Densities of two different coatings

图7 1600 ℃热处理不同时间涂层的热导率曲线 (a) Sr1.1(Zr0.9Yb0.05Gd0.05)O3.05; (b) SrZrO3

Fig. 7 Thermal conductivities of two different coatings after heat-treatment at 1600 ℃ for different time

图8 涂层火焰循环测试后的(a~b)宏观形貌和(c~d)截面显微形貌

Fig. 8 Photographs (a-b) and SEM microstructures (c-d) of coatings after burner rig tests (a, c) Sr1.1(Zr0.9Yb0.05Gd0.05)O3.05; (b, d) Sr1.1(Zr0.9Yb0.05Gd0.05)O3.05/YSZ

参考文献 20

[1]	曹学强 . 热障涂层新材料和新结构. 北京: 科学出版社, 2016
[2]	KUMAR V, BALASUBRAMANIAN K . Progress update on failure mechanisms of advanced thermal barrier coatings: a review. Progress in Organic Coatings, 2016,90:54-82.
[3]	MAUER G, MACK D E, VAβEN R. Plasma-sprayed thermal barrier coatings: new materials, processing issues, and solutions. Journal of Thermal Spray Technology, 2013,22(5):646-658.
[4]	GUPTA M. Design of Thermal Barrier Coatings. Berlin: Springer International Publishing, 2015.
[5]	郭敏海 . 超声辅助激光熔覆YSZ陶瓷涂层实验研究. 大连: 大连理工大学博士学位论文, 2015.
[6]	SHEN JIE, ZHAO XIAO-DONG, GAO FENG , et al. Study on oxidation resistance of NiCoCrAlY bonded coating. Thermal Spray Technology, 2010,2(4):24-29.
[7]	WANG HAO, WANG QUQN-SHENG . Research progress on modification in compositions of MCrAIY coatings. Surface Technology, 2014,43(3):152-174.
[8]	KRAUSE A R, GARCES H F, DWIVEDI G , et al. Calcia- magnesia-alumino-silicate (CMAS)-induced degradation and failure of air plasma sprayed yttria-stabilized zirconia thermal barrier coatings. Acta Materialia, 2016,105:355-366.
[9]	凌锡祥 . 8YSZ热障涂层隔热性能及热冲击性能的数值研究. 上海: 上海交通大学博士学位论文, 2015.
[10]	CHRISTOPHER J HOWARD, KEVIN S KNIGHT, BRENDAN J KENNEDY , et al. The structural phase transitions in strontium zirconate revisited. Journal of Physics Condensed Matter, 2000,12(12):L677-L683.
[11]	MA W, MACK D, MALZBENDER J , et al. Yb₂O₃ and Gd₂O₃ doped strontium zirconate for thermal barrier coatings. Journal of the European Ceramic Society, 2008,28(16):3071-3081.
[12]	MA WEN, SONG FENG-YU, DONG HONG-YING , et al. Thermophysical properties of Y₂O₃ and Gd₂O₃ co-doped SrZrO₃ thermal barrier coating material. Journal of Inorganic Materials, 2012,27(2):209-213.
[13]	MA W, WANG D, DONG H , et al. Double rare-earth oxides co-doped strontium zirconate as a new thermal barrier coating material. Journal of Thermal Spray Technology, 2013,22(2/3):104-109.
[14]	MA WEN, GUO HONG-BO, GONG SHENG-KAI , et al. Lanthanum- cerium oxide thermal barrier coatings prepared by atmospheric plasma spray. Journal of Inorganic Materials, 2009,24(5):983-988.
[15]	OU YANG-JING, LI XIAO-YU, JIN JIAO , et al. Research progress in the structural, mechanical properties of ZrO₂ and their applications. Materials Review, 2013,27(15):13-18.
[16]	LI ZHENG, ZHANG XIN, ZHANG DE-MING , et al. Study on effects of amount of doping rare earth oxide for modified YSZ thermal barrier coatings. Thermal Spray Technology, 2015,7(1):44-49.
[17]	SPEIGHT J G . Lange’s Handbook of Chemistry. 16th Edition, New York: McGraw-Hill,Inc., 2014.
[18]	ZHANG ER-GENG, CHEN QIANG, HUANG BIAO , et al. Research progress and performance of thermal barrier coatings. Journal of Ceramics, 2016,37(1):5-10.
[19]	TRAEGER F, AHRENS M, VAβEN R , et al. A life time model for ceramic thermal barrier coatings. Materials Science & Engineering A, 2003,358(1/2):255-265.
[20]	RAGHAVAN S, WANG H, DINWIDDIE R B , et al. The effect of grain size, porosity and yttria content on the thermal conductivity of nanocrystalline zirconia. Scripta Materialia, 1998,39(8):1119-1125.

单相双稀土改性SrZrO₃热障涂层的热物理性能

Thermophysical Property of Single-phase Strontium Zirconate Co-doped with Double Rare-earth Oxides as a Thermal Barrier Coating Material

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