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graded thermal barrier coatings
相关语句
  梯度热障涂层
     The Microstructure of Al_2O_3/TiO_2 NiCrBSi Graded Thermal Barrier Coatings Produced by Flame Spraying
     火焰喷涂Al_2O_3/TiO_2-NiCrBSi梯度热障涂层的微观组织
短句来源
     Thermal Shock Cracks on the Surface of Functional Graded Thermal Barrier Coatings
     功能梯度热障涂层热震表面裂纹
短句来源
     Graded thermal barrier coatings of ZrO2 ceramic and NiCrAl metal are prepared by plasma spraying. Microstructural characteristics and elemental distribution of the coatings are studied by Scanning Electron Microscopy(SEM), Energy-Dispersive Spectrometry(EDS) and Electron Probe Micro-analysis(EPMA).
     利用等离子喷涂技术制备了ZrO2陶瓷和NiCrAl金属的梯度热障涂层,利用扫描电镜(SEM)、能谱仪(EDS)和电子探针(EPMA)研究了涂层的显微结构和化学成分分布特征.
短句来源
     Development of Metal / Ceramic Graded Thermal Barrier Coatings
     金属/陶瓷梯度热障涂层的研究进展
短句来源
     On Microstructure of Metal/Ceramic Graded Thermal Barrier Coatings in Thermal Shock Experiments
     金属/陶瓷梯度热障涂层热震过程中的显微组织研究
短句来源
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  阶梯热障涂层
     THERMAL SHOCK BEHAVIOR OF ZrO_2/Ni GRADED THERMAL BARRIER COATINGS
     ZrO_2/Ni阶梯热障涂层的热冲击行为
短句来源
     Thermal Shock Behavior of Al_2O_3/TiO_2 NiCrBSi Graded Thermal Barrier Coatings Produced by Flame Spraying
     火焰喷涂Al_2O_3/TiO_2-NiCrBSi阶梯热障涂层的热冲击失效分析
短句来源
  “graded thermal barrier coatings”译为未确定词的双语例句
     Characteristics of Functionally Graded Thermal Barrier Coatings Deposited By Supersonic Plasma Sprayed
     超音速等离子喷涂制备梯度功能热障涂层的特点
短句来源
     This paper summariser the existing techniques, study and applications for metal/ceramic graded coatings material, and manufacture process of metal/ceramic graded thermal barrier coatings.
     综述了金属/陶瓷梯度涂层材料的作用机理、研究工作及应用领域、金属/陶瓷梯度热障层的制备工艺。
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  graded thermal barrier coatings
Hot-corrosion behavior of graded thermal barrier coatings formed by plasma-spraying process
      
The estimation of time-dependent properties for ceramic-metal mixturesis important for analyzing the effects of thermal loading oncompositionally graded thermal barrier coatings.
      
The functionally graded thermal barrier coatings (FG-TBCs) with 80% ZrO2-13%CeO2-7%Y2O3 (CYSZ)/NiCoCrAlY were prepared using a recently developed supersonic plasma spraying (S-PS) with dual powder feed ports system.
      


The failure behaviors of ZrO2/Ni graded thermal barrier coatings under the conditions of thermal shock with fiame jet and water quenching have been studied. The one-dimensi-onal analytic model of temperature and stress field under these conditions for the coatings hasbeen established. The thermal shock resistance of coatings increases with the increase of layersunder the condition of fiame jet and decreases with the increase of layers under the condition ofwater quenching, which...

The failure behaviors of ZrO2/Ni graded thermal barrier coatings under the conditions of thermal shock with fiame jet and water quenching have been studied. The one-dimensi-onal analytic model of temperature and stress field under these conditions for the coatings hasbeen established. The thermal shock resistance of coatings increases with the increase of layersunder the condition of fiame jet and decreases with the increase of layers under the condition ofwater quenching, which can be reasonably explained with the present model. The thermal shockresistance depends on the thermal shock conditions, and is determined by the magnitude anddirection of the surface heat exchange coefficiellt. Therefore, it is necessary to choose suitablethermal shock condition to evaluate the ability to resist shock of coatings. For thermal barriercoatings which are applied to the turbine blade of aeroengine or under the matchable thermalshock conditions, gradient structure mny sigIilficantly improve their ability to resist thermal shock.

研究了ZrO2/Ni阶梯热障涂层在火焰喷烧和水淬两种热冲击条件下的失效行为,建立了梯度热障涂层在火焰喷烧和水淬热冲击条件下一维温度场和应力场的解析模型实验结果表明,涂层的抗热冲击能力在火焰喷烧条件下随层次的增加而增强,在水淬热冲击条件下却随层次的增加而降低.证实涂层的抗热冲击能力与热冲击条件有关,并取决于表面换热系数的大小与方向故评价涂层的抗热冲击能力时须合理选择热冲击条件按梯度设计,能大大提高航空发动机叶片及相当热冲击条件使用的热障涂层的抗热冲击能力.

The failure behaviors of Al 2O 3/TiO 2 NiCrBSi graded thermal barrier coatings produced by oxy acetylene spraying under the condition of thermal shock with water quenching have been studied The results show that the thermal shock resistance of the coatings increases with decreasing in component gap between layers The failure is caused by the cracks both in layers and in the interface between layers For the coating with better component gradient,its failure is attributed...

The failure behaviors of Al 2O 3/TiO 2 NiCrBSi graded thermal barrier coatings produced by oxy acetylene spraying under the condition of thermal shock with water quenching have been studied The results show that the thermal shock resistance of the coatings increases with decreasing in component gap between layers The failure is caused by the cracks both in layers and in the interface between layers For the coating with better component gradient,its failure is attributed to propagating of the cracks which are in layers, leading to the formation of network cracks For the coating with bigger component gap between layers,its failure is attributed to the rapidly propagation of the cracks which are in the interface between layers, leading to the coating peel off the substrate In the case of moderate gap the coating′s failure is due to the propagation of both the cracks, leading to the failure of the coating in the form of localized fracture

:研究了氧乙炔火焰喷涂制备的 Al2 O3/ Ti O2 - Ni Cr BSi阶梯热障涂层在水淬热冲击条件下的失效行为。结果表明 ,涂层的抗热冲击能力随梯度成分间隔的减小而增强 ,其失效是由于涂层层间裂纹和层内裂纹共同作用的结果。对于成分梯度化较好的涂层 ,层内裂纹扩展导致网状裂纹是失效的主要原因 ;层间成分间隔大 ,失效则是以层间裂纹的快速扩展而导致涂层整体剥落为主要原因 ;当成分间隔介于以上二者时 ,层内裂纹和层间裂纹共同作用 ,导致涂层以局部脱落或剥落形式失效。

Microstructural change and thermal shock performance of metal/ceramic graded thermal barrier coatings in thermal shock experiments were studied by scanning electron microscope and energy dispersive spectrometry.The results showed:1) metal microstructure kept intact while ceramic microstructure had been destroyed;2) thermal shock performance of coatings was interrelated with its function to relax residual stresses,therefore thermal shock performance of gradient thermal barrier...

Microstructural change and thermal shock performance of metal/ceramic graded thermal barrier coatings in thermal shock experiments were studied by scanning electron microscope and energy dispersive spectrometry.The results showed:1) metal microstructure kept intact while ceramic microstructure had been destroyed;2) thermal shock performance of coatings was interrelated with its function to relax residual stresses,therefore thermal shock performance of gradient thermal barrier coatings was better than that of terraced thermal barrier coatings;3) thermal shock performance was concerned with metal content in metal/ceramic thermal barrier coatings,which would be improved when metal content was increased.

利用扫描电子显微镜和能谱成分分析技术研究了金属 /陶瓷梯度热障涂层在热震过程中的显微组织变化及其抗热震性能 .结果表明 :1 )金属显微组织保持完好 ,陶瓷显微组织有明显的破坏 ;2 )涂层抗热震性能与其热应力缓和功能密切相关 ,梯度热障涂层比阶梯热障涂层具有更高的抗热震性能 ;3)金属 /陶瓷热障涂层抗热震性能与其中金属相含量有关 ,金属相含量增加可改善涂层抗热震性能 .

 
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