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Criteria of assessment of powders provided to spray by the APS method for new and conventional layers type TBC

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Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Purpose: Verification of up-to-now use of conventional powders, provided to spray by the APS method for layers type TBC and its possible adaptation to layers of new types, which are based on new ceramic compounds, sprayed on conventional high temperature creep resisting alloys. New types of used ceramic powders are so called pyrochlores of the RE2Zr2O7 general formula. Design/methodology/approach: A scope of investigations comprised review of up-to-now used criteria of assessment and verification of them on powders of new types. Investigations of chemical composition were realized, in consideration of carbon and sulphur contents and gas oxygen and nitrogen contents. Investigations on sizes of powders by a sieve method and investigations on surface morphology were carried out. Assessment of microstructure, considering homogeneity in chemical composition and porosity, was carried out. Assessment of phase contents of exemplary powders was carried out. Findings: The carried out analysis enabled to compare criteria of assessment for two types of powders, provided to be sprayed by the APS method. It was stated that up-to-now used criteria of assessment of powders were correct also for materials of new types. Research limitations/implications: The carried out investigations suggest a necessity to verify results also on an example of another type of new powders. Practical implications: The got results reveal a possibility to use up-to-now procedures in assessment of powders for materials of a new type, completed with characteristics of physical and mechanical properties. Originality/value: Information concerning basic principles in assessment of properties microstructure of powders of a new type is an original value, presented in the article.
Rocznik
Strony
29--36
Opis fizyczny
Bibliogr. 24 poz.
Twórcy
autor
  • Department of Materials Science, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland, grzegorz.moskal@polsl.pl
Bibliografia
  • [1] M. Konter, M. Thumann, Materials and manufacturing of advanced industrial gas turbine components, Journal of Materials Processing Technology 92-117 (2001) 386-390.
  • [2] D. Stover, C. Funke, Directions of the development of thermal barrier coatings in energy applications, Journal of Materials Processing Technology 92-93 (1999) 195-202.
  • [3] J.F. Li, H.L. Liao, C.X. Ding, C. Coddet, Optimizing the plasma spray process parameters of yttria stabilized zirconia coatings using a uniform design of experiments, Journal of Materials Processing Technology 160 (2005) 34-42.
  • [4] M. Hetmańczyk, L. Swadźba, B. Mendala, Advanced Materials and Protective Coatings in Aero-Engines Application, Journal of Achievements in Materials and Manufacturing Engineering 24/2 (2007) 372-381.
  • [5] L. Swadźba, G. Moskal, B. Mendala, T. Gancarczyk, Characterization of APS TBC system during isothermal oxidation at 1100°C, Archives of Materials Science and Engineering 28/12 (2007) 757-764.
  • [6] G. Moskal, Effect of TBC on oxidation behaviour of γ-TiAl based alloy, Journal of Achievements in Materials and Manufacturing Engineering 22/2 (2007) 31-34.
  • [7] G. Moskal, L. Swadźba, T. Rzychoń, Measurement of residual stress in plasma-sprayed TBC with a gradient of porosity and chemical composition, Journal of Achievements in Materials and Manufacturing Engineering 22/2 (2007) 31-34.
  • [8] L. Swadźba, G. Moskal, B. Mendala, T. Gancarczyk, Characterization of air plasma sprayed TBC coating during isothermal oxidation at 1100°C, Journal of Achievements in Materials and Manufacturing Engineering 21/2 (2007) 81-84.
  • [9] C.G. Levi, Emerging materials and processes for thermal barrier system, Current Opinion in Solid State and Materials Science 8 (2004) 77-91.
  • [10] W.J. Lackey, D.P. Stinton, G.A. Cerny, A.C. Schaffhauser, L.L. Fehrenbacher, Ceramic coatings for advanced heat engines-a review and projection, Advanced Ceramic Materials 2/1 (1987) 24-30
  • [11] B.P. Bewley et al., A review of very high-temperature nb-silicide based composites, Technical Information Series, GE Research & Development Center, September 2002, 2002GRC172.
  • [12] R. Vassen, D.Stoever, , Conventional and new materials for thermal barrier coatings. In Functional Grandient Materials and Surface Layers Prepared by Fine Particles Technology, ed. M.-I. Baraton and I. Uvarova. Kluwer Academic Publishers, Netherlands, 199-216.
  • [13] M.J. Maloney, U.S. Patent No. 6,117,560, 2000.
  • [14] U. Schulz et al., Some recent trends in research and technology of advanced thermal barrier coatings, Aerospace Science and Technology 7 (2003) 73-80.
  • [15] D.R. Clarke, S.R. Phillpot, Thermal barrier coatings materials, Materials Today 6 (2005) 22-29.
  • [16] M. J. Maloney, U.S. Patent No. 6,117,560, 2000.
  • [17] M. J. Maloney, U.S. Patent No. 6,284,323, 2001.
  • [18] R. Subramanian, U.S. Patent No. 6,258,467, 2001.
  • [19] C. Ding, Y. Xi, Y. Zhang, J. Qu, H. Qiao, Thermophysical properties of plasma sprayed rare earth oxide coatings, Proceedings of the 2nd Plasma-technique-symposium Lucerne Switzerland, 1991, 27-32.
  • [20] J. Wu, et al., Low-Thermal-Conductivity Rare-Earth Zirconates for Potential Thermal-Barrier-Coating Applications, Journal of the American Ceramic Society 85/12 (2002) 31-35
  • [21] Zhu D., Miller R.A., Development of Advanced Low Conductivity Thermal Barrier Coatings International Journal of Applied Ceramic Technology 1/1 (2004) 86-94.
  • [22] G. Moskal, B Witala, A. Rozmysłowska, Thermal diffusivity of RE2Zr2O7 - type ceramic powders intended for TBCs deposited by APS, Archives of Materials Science and Engineering 36/2 (2009) 76-81.
  • [23] G. Moskal, B Witala, A. Rozmysłowska, Metallographic preparation of conventional and new TBC layers, Archives of Materials Science and Engineering (2009) (in print).
  • [24] G. Moskal, Criteria of microstructural assessment of the conventional and new TBC layers, Archives of Materials Science and Engineering (2009) (in print).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BSL7-0035-0004
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