新型热障涂层材料及其制备技术的研究与发展

何明涛; 孟惠民; 王宇超; 任鹏伟

doi:10.19591/j.cnki.cn11-1974/tf.2019.01.011

新型热障涂层材料及其制备技术的研究与发展

doi: 10.19591/j.cnki.cn11-1974/tf.2019.01.011

北京科技大学新材料技术研究院, 北京 100083

基金项目:

国家重点基础研究发展计划（973计划）资助项目 2014CB643302

详细信息

通讯作者:
孟惠民, E-mail: menghm16@126.com

中图分类号: TG174.4
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- 被引次数: 0
出版历程
- 收稿日期: 2018-10-20
- 刊出日期: 2019-02-27

Research and development of advanced thermal barrier coating materials and preparation technology

Institute of Advance Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China

摘要

摘要: 热障涂层（thermal barrier coatings，TBCs）能有效的提高航空发动机热端部件的工作温度和使用寿命。目前应用最为广泛的热障涂层材料为氧化钇部分稳定氧化锆（yttria-stabilized zirconia，YSZ），该热障涂层材料在服役温度高于1200℃下会发生相变，严重影响航空发动机的使用寿命和服役安全，难以满足新一代航空发动机的服役要求。本文综述了新型热障涂层材料的研究现状，重点介绍了掺杂改性氧化钇部分稳定氧化锆、烧绿石或萤石结构材料、钙钛矿结构化合物、磁铅石矿结构化合物以及新型黏结层材料的研究进展和发展方向，并论述了热障涂层制备技术的方法原理和优缺点，最后对热障涂层材料和制备方法的发展趋势进行了展望。
- 热障涂层 /
- 制备技术 /
- 陶瓷材料 /
- 黏结层
Abstract: Thermal barrier coatings (TBCs) can effectively improve the operation temperature and service life of aero-engine hot end components. At present, yttria-stabilized zirconia (YSZ) is the most widely used thermal barrier coating materials. Phase transformation of YSZ occurs when the service temperature is higher than 1200℃, which seriously affects the service life and service safety of the aero-engines, and it is difficult to meet the service requirements of new generation of aero-engines. The investigation on the advanced thermal barrier coating materials (TBCs) was summarized in this paper. The research progress of several novel thermal barrier coating candidates were mainly reviewed, such as multiple oxide co-droped YSZ, A₂B₂O₇-type compounds, perovskites, magnetoplumbite compounds, and new bond coating materials. The preparation principles and advantage-disadvantage of thermal barrier coatings were discussed. At last, the development direction of thermal barrier coating materials and preparation technology were also proposed.
- thermal barrier coatings /
- preparation technology /
- ceramic materials /
- bond coating

HTML全文

图 1 等离子喷涂涂层截面形貌

Figure 1. Section morphology of coatings prepared by plasma spraying

下载: 全尺寸图片幻灯片

图 2 电子束物理气相沉积制备涂层截面形貌^[30]

Figure 2. Section morphology of coatings prepared by EB-PVD^[30]

下载: 全尺寸图片幻灯片

表 1 ScYSZ涂层热导率^[9]

Table 1. Thermal conductivity of ScYSZ coating^[9]

温度/℃	900	1000	1100	1200	1300	1400	1500
热导率/(W·m^-1·K^-1)	0.93	0.94	0.97	1.02	1.02	1.11	1.19

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表 2 稀土锆酸盐与YSZ的热物理性能^[13]

Table 2. Physical properties of rare earth zirconate and YSZ^[13]

材料	热膨胀系数/(10^-4·K^-1)	热导率/(W·m^-1·K^-1)
La₂Zr₂O₇	9.10（30~1000 ℃）	1.56（800 ℃）
Sm₂Zr₂O₇	10.80（30~1200 ℃）	1.50（700 ℃）
Yb₂Zr₂O₇	10.40（1000 ℃）	1.58（800 ℃）
Gd₂Zr₂O₇	11.60（30~1000 ℃）	1.60（700 ℃）
Nd₂Zr₂O₇	10.64（100~1200 ℃）	1.60（700 ℃） 1.25（800 ℃）
YSZ	10.70（8YSZ，20~1000 ℃）	2.30（7YSZ，700 ℃）

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