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graded coatings
相关语句
  梯度涂层
    STUDY ON THERMAL-SHOCK RESISTANCE OF Fe_3Al/Al_2O_3 COMPOSITE GRADED COATINGS
    Fe_3Al/Al_2O_3陶瓷复合梯度涂层抗热震性研究
短句来源
    The thermal-shock resistance and the thermal-shock mechanism of Fe3 Al/Al2 O3 graded coatings were studied by thermal-cycling experiment at 800℃ and cooled by compressed air.
    通过800℃—压缩空气冷却热循环实验,对Fe_3Al/Al_2O_3梯度涂层的抗热震性和热震机制进行了研究。
短句来源
    When the cracks form in Al2 O3 coatings, the coatings are spoiled quickly along the substrate - coating interfaces. But the graded coatings stili have some abilities of thermal-shock resistance when the cracks form.
    当裂纹在Al_2O_3中出现时,涂层将沿着基体-涂层界面迅速剥离,而对梯度涂层则具有相当的抗热震能力。
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  graded coatings
Adhesive/cohesive properties of thermally sprayed functionally graded coatings for polymer matrix composites
      
The hot-corrosion behavior of thermal barrier coatings (TBCs) has been studied by comparing double-layer coatings and graded coatings.
      
The bond strength of functionally graded coatings was about twice as high as that of the duplex coatings because of the significant reduction of the residual stresses in the coatings.
      
The optimal classes of graded coatings are defined on the basis of modeling the stress state of the coatings.
      
Three types of hydroxyapatite (flame spheroidized) monolayer coatings and three types of functionally graded coatings were manufactured.
      
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The electrodeposited ZrO 2 Ni functionally graded coating was fabricated by controlling the ZrO 2 concentration in the bath, and the microstructure was analyzed by X Ray Diffraction (XRD) and Electron Probe Microanalysis (EPMA). The results show that the functionally graded coating has excellent compositional gradient distribution from the substrate to the surface. The content of ZrO 2 is up to 14.4 vol% in the surface layer and the coating consists of the t ZrO 2, m ZrO 2 and...

The electrodeposited ZrO 2 Ni functionally graded coating was fabricated by controlling the ZrO 2 concentration in the bath, and the microstructure was analyzed by X Ray Diffraction (XRD) and Electron Probe Microanalysis (EPMA). The results show that the functionally graded coating has excellent compositional gradient distribution from the substrate to the surface. The content of ZrO 2 is up to 14.4 vol% in the surface layer and the coating consists of the t ZrO 2, m ZrO 2 and Ni phases. Owing to the ZrO 2 particles pressed by Ni atoms during electrodepositing, t→m transformation has occurred.

电沉积ZrO2┐Ni功能梯度材料的组织结构分析①全成军*向兴华朱景川尹钟大(哈尔滨工业大学材料科学与工程学院哈尔滨150001)航空航天技术的高速发展对材料的耐热性能提出了更苛刻的要求,传统的单一材料(如陶瓷、金属)和金属陶瓷复合材料已难以在超高温和...

MEK is a good solvent for high grade coatings. Because of VOC restriction and reduction, the consumption and production of MEK in Europe, Untied States and Japan are just pacing up and down in recent years. The consumption of MEK in China is increasing in these few years. But, we must be careful to arrange the production plan because of the same environmental reason.

甲乙酮 (MEK )是高档涂料应用的优良溶剂。欧、美、日等发达国家和地区由于环保原因 ,其生产徘徊不前 ,应用市场下滑。我国近年来随着高档涂料的发展 ,需求量增长 ,但今后须谨慎规划。

A new method was explored to make a new type bioactive graded coating on titanium alloy for medical use and to improve its adhesive strength and stability. A gradient codeposition of bioglass (BG) and hydroxyapatite (HA) on the cathode Ti6Al4V was obtained in a non_aqueous solution system by inducing deposition and electrophoresis deposition(EPD). A bioactive graded ceramic coa_ ting is obtained by sintering of the coating. The phase composition of the coating was analyzed by XRD. The...

A new method was explored to make a new type bioactive graded coating on titanium alloy for medical use and to improve its adhesive strength and stability. A gradient codeposition of bioglass (BG) and hydroxyapatite (HA) on the cathode Ti6Al4V was obtained in a non_aqueous solution system by inducing deposition and electrophoresis deposition(EPD). A bioactive graded ceramic coa_ ting is obtained by sintering of the coating. The phase composition of the coating was analyzed by XRD. The result shows that the coating is composed of HA, titanite and glass phase. The adhesive strength between the coating and the matrix, measured by bond_pull method, is over 18 MPa. The surface and cross section morphology of the coating were observed by SEM. The results indicate that a flat and crack_free coating surface, a tight bonding state between the matrix and coating, and an interface gradient region are obtained.

本工作的目的是探索制备钛合金表面生物活性梯度涂层的新方法 ,提高涂层的结合强度及稳定性 .通过诱导羟基磷灰石 (HA)在生物玻璃 (BG)颗粒表面的结晶 ,改变了生物玻璃表面的带电特性 ;采用电泳沉积 (EPD)法 ,在非水溶液体系中实现了BG和HA在阴极Ti6Al4V基体上的共沉积 ,经烧结获得了生物活性梯度陶瓷涂层 ,得到了一种制备生物活性梯度陶瓷涂层的新工艺 .用XRD对涂层的相组成进行了定性分析 ,结果表明涂层由HA ,榍石和玻璃组成 ;采用粘结拉伸法测定的涂层与基体结合强度大于 18MPa,用SEM观察涂层表面及断面的形貌 ,可见涂层表面较为平整 ,没有明显的裂纹 ;涂层与基体结合紧密 ,且存在一明显的界面梯度区域 .

 
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