新型热障涂层陶瓷隔热层材料

薛召露; 郭洪波; 宫声凯; 徐惠彬

doi:10.11868/j.issn.1005-5053.2018.001001

新型热障涂层陶瓷隔热层材料

doi: 10.11868/j.issn.1005-5053.2018.001001

薛召露¹,
郭洪波^1,2, ,,
宫声凯^1,2,
徐惠彬^1,2

1.
北京航空航天大学材料科学与工程学院，北京 100191
2.
高温结构材料与涂层技术工业和信息化部重点实验室，北京 100191

基金项目: 国家自然基金（51590894, 51425102, 51231001）

详细信息

通讯作者:
郭洪波（1971—），男，博士，教授，主要从事先进航空发动机高温/超高温防护涂层研究，（E-mail）guo.hongbo@buaa.edu.cn

中图分类号: TG174.4
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- 被引次数: 0
出版历程
- 收稿日期: 2017-12-15
- 修回日期: 2018-01-18
- 刊出日期: 2018-04-01

Novel Ceramic Materials for Thermal Barrier Coatings

Zhaolu XUE¹,
Hongbo GUO^{1,2
, ,},
Shengkai GONG^1,2,
Huibin XU^1,2

1.
School of Materials Science and Engineering, Beihang University, Beijing 100191, China
2.
Key Laboratory of High-Temperature Structure Materials and Coatings Technology (Ministry of Industry and Information Technology), Beihang University, Beijing 100191, China

摘要

摘要: 热障涂层（thermal barrier coatings, TBCs）是先进燃气涡轮发动机核心热端部件高压涡轮叶片的关键技术，已经在航空发动机和地面燃气轮机上获得成功应用的热障涂层陶瓷隔热层材料为氧化钇部分稳定氧化锆（YSZ）。由于受高温稳定性、隔热性能等的局限，YSZ已不能满足下一代航空发动机的发展要求。本文介绍了近年来国内外在多元氧化物掺杂氧化锆、A₂B₂O₇型烧绿石或萤石化合物、磁铅石型六铝酸盐化合物、石榴石型化合物、钙钛矿结构化合物和其他新型氧化物陶瓷等先进超高温热障涂层陶瓷材料方面的研究进展，并展望了今后超高温热障涂层陶瓷材料所面临的挑战和发展动向。
- 热障涂层 /
- 陶瓷材料 /
- 超高温 /
- 航空发动机
Abstract: Thermal barrier coatings (TBCs) are the key technologies for hot-components in advanced gas turbine and land-based engines. Yttria stalized zirconia (YSZ) is now extensively used as ceramic topcoat in TBC system. However, YSZ cannot be used for next generation aircraft engines due to its limitation in high-temperature capabilities and thermal barrier performances. In this paper, recent research progress of several novel TBC ceramic candidates covering multiple oxide co-doped zirconia, A₂B₂O₇-type compounds, magnetoplumbite compounds, garnet-type compounds, perovskites and other new oxides ceramics is overviewed. And the development tendencies and challenges of ultra-high temperature TBC materials for future applications are prospected.
- thermal barrier coatings (TBCs) /
- ceramic materials /
- ultra-high temperatures /
- aero-engines

HTML全文

图 1 典型热障涂层的示意图^[8]

Figure 1. Schematic diagram of typical TBC^[8]

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图 2 Sc₂O₃-Gd₂O₃共掺杂改性ZrO₂陶瓷的热导率^[14]

Figure 2. Thermal conductivities of Sc₂O₃-Gd₂O₃ co-doped ZrO₂ ceramic ^[14]

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图 3 EB-PVD 3Gd3Yb-YSZ热障涂层截面（a）和燃气热冲击15000次后表面形貌（b）^[15]

Figure 3. Section morphologies of EB-PVD 3Gd3Yb-YSZ TBC as-deposited　（a）and surface morphologies after flame thermal shockof 15000 cycles （b）^[15]

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图 4 晶胞结构图　（a）萤石结构;（b）烧绿石结构

Figure 4. Crystal structure　（a）fluorite;（b）pyrochlore

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图 5 Y₃Al₅O₁₂晶体结构示意图

Figure 5. Schematic diagram of crystal structure of Y₃Al₅O₁₂

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图 6 （Y_1–xYb_x）₃Al₅O₁₂陶瓷热导率随Yb掺杂浓度的变化^[57]

Figure 6. Thermal conductivity of （Y_1–xYb_x）₃Al₅O₁₂ ceramics as a function of Yb doping concentration^[57]

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图 7 BaLn₂Ti₃O₁₀ (Ln: Sm, Nd, Pr, La)晶体结构模型^[65]　（a）（100）面;（b）（010）面

Figure 7. BaLn₂Ti₃O₁₀ (Ln: Sm, Nd, Pr, La) crystal structure model showing a tri-perovskite layer separated by a BaO layer along c-axis^[65]　（a）（100）plane;（b）（010）plane

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图 8 InFeO₃(ZnO)_m晶胞结构图　（a）m = 奇数时，InFeO₃(ZnO)_m属于R3m空间点群;（b）m = 偶数时，InFeO₃(ZnO)_m属于P63空间点群（In原子位于八面体位置，Fe原子和Zn原子位于三角双锥体位置，部分Zn原子位于四面体位置）^[71]

Figure 8. Crystal structures of InFeO₃(ZnO)_m　（a）R3m space group with odd m numbers;（b）P63/mmc space group with even m numbers（In atoms are at the octahedral site, Fe and Zn atoms are at the trigonal bipyramidal sites, and a part of Zn atoms is at the tetrahedral sites）^[71]

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图 9 In_1–xYb(Gd)_xFeZnO₄ (x = 0.1, 0.2) 的热导率　（a）和热膨胀系数（b）^[75]

Figure 9. Thermal conductivities （a） and thermal expansion coefficients of In_1–xYb(Gd)_xFeZnO₄ (x = 0, 0.1, 0.2)（b）^[75]

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