Role of Y4Al2O9 in High Temperature Oxidation Resistance of NiCoCrAlY-ZrO2·Y2O3 Coatings

材料科学技术（英文）, 2007, 23(4): 568-570.

^1, , ^2, , ^3,

1.Key Laboratory of Radiation Physics and Technology of Education Ministry of China, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China

2.Key Laboratory of Radiation Physics and Technology of Education Ministry of China, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China

3.Key Laboratory of Radiation Physics and Technology of Education Ministry of China, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China

基金项目: 国家自然科学基金(59441009) 国家高技术研究发展计划(863计划)(863-715-23-01-02)

Role of Y4Al2O9 in High Temperature Oxidation Resistance of NiCoCrAlY-ZrO2·Y2O3 Coatings

Keywords： NiCoCrAlY-ZrO2·Y2O3 coatings

NiCoCrAlY-ZrO2·Y2O3 coatings were deposited on the substrates by using a technology of combining electron,atom and ion beams (three beams). Isothermal oxidation for these samples was performed at 1100℃ for 100-300 h. The results show that a thermally grown oxide (TGO) layer was formed between NiCoCrAlY layer and oxidation. The TGO contains α-Al2O3 and Y4Al2O9 etc. oxides. The intensity ratio of α-Al2O3/Y4Al2O9 was monotonously decreased with increasing oxidation time based on XRD (X-ray diffraction) analysis. The Y4Al2O9 phase plays the most important role in high temperature oxidation resistance at 1100℃. The related mechanism was also discussed.

参考文献

[1]	W P Parks;E E Hoffman;W Y Lee;I G Wright .[J].Journal of Thermal Spray Technology,1997,6(02):187.
[2]	N. K. Huang;H. L. Zhang;B. Yang;D. Z. Wang .Yttrium segregation in the depth profile of ZrO2-Y2O3 films with argon or oxygen ion irradiation[J].Journal of Materials Science Letters,1997(24):2041-2042.
[3]	W J Quadakkers;V Shemet;D Sebold .[J].Surface and Coatings Technology,2005,199:77.
[4]	M Karadge;X Zhao;M Preuss;P Xiao .[J].Scripta Materialia,2006,54:639.
[5]	J. A. Haynes;M. K. Ferber;W. D. Porter .Thermal cycling behaviour of plasma-sprayed thermal barrier coatings with various MCrAlX bond coats[J].Journal of Thermal Spray Technology,2000(1):38-48.
[6]	J Muller;D Neuschutz .[J].J Vacuum,2003,71:247.
[7]	S Stecura .[J].Thin Solid Films,1980,73:481.
[8]	B Saruhan;P Francois;K Fritscher;U Schulz .[J].Surface and Coatings Technology,2004,182:175.
[9]	M H Hu;S Q Guo;T Tomimatsu;Y CIkuhara and Y Kagawa .[J].Surface and Coatings Technology,2006,200:6130.
[10]	H B Guo;S K Gont;H B Xu .[J].Journal of Materials Science and Technology,2002,18(01):27.
[11]	K A Khor;C T Chia;Y W Gu .[J].Materials Science and Engineering,2000,A279:166.
[12]	S Widjaja;A M Limarga;T H Yip .[J].Materials Letters,2002,57(03):628.
[13]	R C Budhani;S Prakash;H J Doerr;C V Deshpandey and R F Bunshah .[J].Materials Science and Engineering,1987,85:165.
[14]	D J Wartman;B A Nagaraj;E C Duderstadt .[J].Materials Science and Engineering,1989,A121:433.
[15]	Na WANG,Chungen ZHOU,Shengkai GONG,Huibin XU.Influence of Annealing on the Grain Growth and Thermal Diffusivity of Nanostructured YSZ Thermal Barrier Coating[J].材料科学技术学报（英文版）,2006(06):793-797.
[16]	T S Sheu;T Y Tien;I W Chen .[J].Journal of the American Ceramic Society,1992,75(05):1108.
[17]	S Sodeoka;M Suzuki;T Inoue;K Ueno and S Oki.[A].ASM International,Materials Park,Ohio,USA,1996:295.
[18]	J W Holmes;B H Pilsner.[A].ASM International,Materials Park,Ohio,USA,1987:259.
[19]	N K Huang .[J].Nuclear Instruments and Methods in Physics Research A:Accelerators,Spectrometers,Detectors and Associated Equipment,1993,B80-B81:1101.
[20]	S S Lee;S K Sun;K J Kang .[J].Oxidation of Metals,2005,63:73.
[21]	X Q Cao .[J].Journal of Materials Science and Technology,2007,23(01):15.
[22]	P Palmero;C Esnouf;L Montanaro;G Fantozzi .[J].Journal of the European Ceramic Society,2005,25(09):1565.

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Role of Y4Al2O9 in High Temperature Oxidation Resistance of NiCoCrAlY-ZrO2·Y2O3 Coatings

参考文献