Study on improvement of oxide layer and properties of plasma sprayed alumina in thermal barrier coatings

被引：1
|
作者：
Kobayashi, A. [1 ]
Shanmugavelayutham, G. [1 ]
Yano, S. [2 ]
机构：
[1] Osaka Univ, JWRI, 11-1 Mihogaoka, Osaka 5670047, Japan
[2] Osaka Univ, Grad Sch Engn, Osaka 567 0047, Japan
来源：
DESIGNING OF INTERFACIAL STRUCTURES IN ADVANCED MATERIALS AND THEIR JOINTS | 2007年 / 127卷
关键词：
plasma spraying; thermal barrier coating; oxidation; X-ray diffraction; scanning electron microscope; hardness; bond strength; wear resistance;
D O I：
10.4028/www.scientific.net/SSP.127.313
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thermal barrier coatings (TBC) have been used to improve the efficiency of turbine engine by providing the capability to sustain significant temperature gradient across the coating. TBC failure occurs easily at the interface between the metallic bondcoat and topcoat. Alumina was proposed as a potential candidate as an interlayer to improve the oxidation resistance of thermal barrier coating due to its low oxygen diffusivity against the harsh environment. The mechanical properties, thermal behaviour and high temperature oxidation resistance of the coatings formed by gas tunnel type plasma spraying were investigated in this study. The results showed that this system exhibits the improvement of mechanical properties of the coating and oxidation resistance. This interlayer is preferred in order to minimize the detrimental effect of phase transformation of gamma-Al2O3 to alpha-Al2O3.
引用
收藏
页码：313 / +
页数：3
相关论文
共 50 条
  • [1] Modification of oxide layer in plasma-sprayed thermal barrier coatings
    Chen, WR
    Wu, X
    Dudzinski, D
    Patnaik, PC
    SURFACE & COATINGS TECHNOLOGY, 2006, 200 (20-21): : 5863 - 5868
  • [2] Experimental study on radiative properties of air plasma sprayed thermal barrier coatings
    Yang, G.
    Zhao, C. Y.
    Wang, B. X.
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2013, 66 : 695 - 698
  • [3] Mechanical properties of plasma-sprayed thermal barrier coatings
    Wang, Weize
    Li, Changjiu
    MULTISCALING ASSOCIATED WITH STRUCTURAL AND MATERIAL INTEGRITY UNDER ELEVATED TEMPERATURE, 2006, : 325 - 329
  • [4] Mechanical properties and fracture behavior of interfacial alumina scales on plasma-sprayed thermal barrier coatings
    Haynes, JA
    Ferber, MK
    Porter, WD
    Rigney, ED
    MATERIALS AT HIGH TEMPERATURES, 1999, 16 (02) : 49 - 69
  • [5] Thermal properties of plasma-sprayed functionally graded thermal barrier coatings
    Khor, K.A.
    Gu, Y.W.
    Thin Solid Films, 2000, 372 (01) : 104 - 113
  • [6] Thermal properties of plasma-sprayed functionally graded thermal barrier coatings
    Khor, KA
    Gu, YW
    THIN SOLID FILMS, 2000, 372 (1-2) : 104 - 113
  • [7] Thermal properties of plasma-sprayed functionally graded thermal barrier coatings
    Khor, K.A.
    Gu, Y.W.
    2000, Elsevier Science B.V., Lausanne, Switzerland (372)
  • [8] Deformation of plasma sprayed thermal barrier coatings
    Senturk, U
    Lima, RS
    Lima, CRC
    Berndt, CC
    JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME, 2000, 122 (03): : 387 - 392
  • [9] Stiffness of Plasma Sprayed Thermal Barrier Coatings
    Paul, Shiladitya
    COATINGS, 2017, 7 (05):
  • [10] Deposition of the plasma sprayed thermal barrier coatings
    Ilyschenko, A
    Okovity, V
    Sobolevskij, S
    Dubelir, T
    PUBLICATIONS OF THE ASTRONOMICAL OBSERVATORY OF BELGRADE, NO 53: PROCEEDINGS OF THE FIRST BELARUSSIAN-YUGOSLAVIAN SYMPOSIUM ON PHYSICS AND DIAGNOSTICS OF LABORATORY & ASTROPHYSICAL PLASMA, 1996, : 121 - 121
12345