电子束物理气相沉积LaZrCeO热障涂层微结构与热循环性能
Microstructure and thermal cycling life of LaZrCeO thermal barrier coatings deposited by electron beam physical vapor deposition
查看参考文献24篇
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文摘
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热障涂层(thermal barrier coatings,TBCs)是一种由金属黏结层、热生长氧化物层和陶瓷面层组成的金属-陶瓷复合系统,在先进的航空发动机领域上引起了广泛的关注,但目前先进热障涂层的热循环寿命提升和失效行为研究仍然是一个难点。本研究采用电子束物理气相沉积技术(electron beam physical vapour deposition,EB-PVD)制备LaZrCeO/YSZ双陶瓷层热障涂层,研究热障涂层的相结构、显微组织和失效行为。结果表明:LaZrCeO/YSZ涂层为烧绿石与萤石结构组成的复合涂层材料,LaZrCeO/YSZ涂层的微观结构由羽毛状纳米结构和柱内孔隙组成;在1100 ℃热循环条件下,LaZrCeO/YSZ双陶瓷层热障涂层展现了良好的热循环寿命;热循环实验后,由于应力累积的作用裂纹在热生长氧化层(TGO)中萌生并扩展,包括水平裂纹和垂直裂纹两大类,进而引起整个涂层体系的不稳定,最终导致涂层失效。 |
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其他语种文摘
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Advanced thermal barrier coatings (TBCs) have attracted extensive attention in the field of advanced aero-engine. The thermal cycling life and failure behavior of advanced TBCs still remain a challenge. This work focuses on crystal structure, microstructure and failure behavior of the LaZrCeO/YSZ double ceramic layers TBCs. A composite of pyrochlore and fluorite is formed in LaZrCeO/YSZ coating. The microstructure of LaZrCeO/YSZ coating is composed of feathery nanostructure and intracolumnar pores. The LaZrCeO/YSZ DCL TBCs exhibit good thermal cycling life at 1100 °C. After thermal cycling test, the cracks initiated and propagated in TGO layer due to the stress concentration, including horizontal cracks and vertical cracks, led to the instability of the whole coating system, and finally caused the failure of TBCs. |
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来源
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航空材料学报
,2022,42(1):33-39 【核心库】
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DOI
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10.11868/j.issn.1005-5053.2021.000024
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关键词
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热障涂层
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电子束物理气相沉积
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微结构
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热循环性能
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地址
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中国航发北京航空材料研究院, 航空材料先进腐蚀与防护航空科技重点实验室, 北京, 100095
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中国航发北京航空材料研究院, 北京, 100095
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-5053 |
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学科
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金属学与金属工艺 |
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文献收藏号
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CSCD:7182250
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参考文献 共
24
共2页
|
|
1.
Padture N P. Thermal barrier coatings for gas-turbine engine applications.
Science,2002,296:280-284
|
CSCD被引
608
次
|
|
|
|
|
2.
Padture N P. Advanced structural ceramics in aerospace propulsion.
Nature Materials,2016,15:804
|
CSCD被引
172
次
|
|
|
|
|
3.
刘大响. 一代新材料,一代新型发动机:航空发动机的发展趋势及其对材料的需求.
材料工程,2017,45(10):1-5
|
CSCD被引
47
次
|
|
|
|
|
4.
Levi C G. Emerging materials and processes for thermal barrier systems.
Current Opinion in Solid State and Materials Science,2002,8:77-91
|
CSCD被引
44
次
|
|
|
|
|
5.
Vaben R. Overview on advanced thermal barrier boatings.
Surface and Coatings Technology,2010,205:938-942
|
CSCD被引
104
次
|
|
|
|
|
6.
Clark D R. Thermal-barrier coatings for more efficient gas-turbine engines.
MRS Bulletin,2012,37:891-898
|
CSCD被引
131
次
|
|
|
|
|
7.
Sampath S. Processing science of advanced thermal-barrier systems.
MRS Bulletin,2012,37:903-910
|
CSCD被引
15
次
|
|
|
|
|
8.
Shen Z Y. LZC/YSZ DCL TBCs by EB-PVD: microstructure, low thermal conductivity and high thermal cycling life.
Journal of the European Ceramic Society,2019,39:1443-1450
|
CSCD被引
7
次
|
|
|
|
|
9.
Cao X Q. New doubleceramic-layer thermal barrier coatings based on zirconiarare earth composite oxides.
Journal of the European Ceramic Society,2006,26:247-251
|
CSCD被引
41
次
|
|
|
|
|
10.
Zhao M. Defect engineering in development of low thermal conductivity materials: a review.
Journal of the European Ceramic Society,2017,37:1-13
|
CSCD被引
32
次
|
|
|
|
|
11.
Guo L. Effects of TiO_2 doping on the defect chemistry and thermo-physical properties of Yb_2O_3 stabilized ZrO_2.
Journal of the European Ceramic Society,2017,37:4163-4169
|
CSCD被引
4
次
|
|
|
|
|
12.
Shen Z Y. Morphological evolution and failure of LZC/YSZ DCL TBCs by electron beam-physical vapor deposition.
Materialia,2018,4:340-347
|
CSCD被引
7
次
|
|
|
|
|
13.
Winter M R. Oxide Materials with low thermal conductivity.
Journal of the American Ceramic Society,2007,90:533-540
|
CSCD被引
21
次
|
|
|
|
|
14.
Shen Z Y. LaZrCeO/YSZ TBCs by EB-PVD: microstructure evolution, residual stress and degradation behavior.
Materials Chemistry Frontiers,2019,3:892-900
|
CSCD被引
2
次
|
|
|
|
|
15.
Shen Z Y. A study of crack formation and propagation in LaZrCeO/YSZ thermal barrier coatings at different temperature.
Inorganic Chemistry Frontiers,2019,6:3468-3474
|
CSCD被引
1
次
|
|
|
|
|
16.
Mahade S. Functional performance of Gd_2Zr_2O_7/YSZ multi-layered thermal barrier coatings deposited by suspension plasma spray.
Surface and Coatings Technology,2017,318:208-216
|
CSCD被引
5
次
|
|
|
|
|
17.
Hong Q J. Combined computational and experimental investigation of the refractory properties of La_2Zr_2O_7.
Acta Materialia,2015,84:275-282
|
CSCD被引
3
次
|
|
|
|
|
18.
Shen Z Y. LaGdZrO/YSZ thermal barrier coatings by EB-PVD: Microstructure, thermal properties and failure mechanism.
Chemical Engineering Journal Advances,2021,5:100073
|
CSCD被引
6
次
|
|
|
|
|
19.
Patwe S J. Synthesis, characterization and lattice thermal expansion of some compounds in the system Gd_2CexZr_2-xO_7.
Journal of Alloys and Compounds,2005,389:243-246
|
CSCD被引
21
次
|
|
|
|
|
20.
Pollock T M. Multifunctional coating interlayers for thermal-barrier systems.
MRS Bulletin,2012,37:923-931
|
CSCD被引
11
次
|
|
|
|
|
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