Characterization of powders used for LPPS Thin Film plasma spraying of thermal barrier coatings

• Autorzy: Góral M. , Drajewicz M. , Pytel M. , Kotowski S.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The authors described in this article the basic properties of materials used for spray process of thermal barrier coatings under low pressure The characteristic of selected powders applied for bond-coats and outer ceramic layer was introduced. The authors presented the analysis of powders based on zirconium oxide stabilized by yttrium oxide, magnesium and calcium. Design/methodology/approach: The described powders was analyzed by scanning electron microscopy and particle distribution by IPS U analyzer. Findings: The ceramic powders were characterized by irregular particle shape caused by grinding process. The only exception was Metco 204 powder, with spheroid-shaped particles. Research limitations/implications: The ceramic powders were made of zirconium oxide, which was stabilized by different types of oxides: yttrium (Metco 204), calcium (Metco 201) and magnesium (Metco 210). It is necessary to assess influence of the oxide, stabilizing the yttrium oxide, on stability of obtained ceramic layer of TBC coating. Practical implications: Powders analysed in the article will be submitted to plasma spraying process with different methods. Originality/value: The ceramic powder used for LPPS-Thin Film process were first time described.

Słowa kluczowe

EN

metallic alloys; ceramics and glasses; corrosion; electron; microscopy; thin-thick coatings; surface treatment

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2011
• Tom: Vol. 47, nr 2
• Strony: 157--165
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Góral M.

• Department of Materials Science, The Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, ul. W. Pola 2, 35-959 Rzeszow, Poland

autor

Drajewicz M.

• Department of Materials Science, The Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, ul. W. Pola 2, 35-959 Rzeszow, Poland

autor

Pytel M.

• Department of Materials Science, The Faculty of Mechanical Engineering and Aeronautics, Rzeszow University of Technology, ul. W. Pola 2, 35-959 Rzeszow, Poland

autor

Kotowski S.

• Research and Development Laboratory for Aerospace Materials, Rzeszow University of Technology, ul. W. Pola 2, 35-959 Rzeszow, Poland

Bibliografia

• [1] X.Q. Cao, R. Vassen, D. Stoever, Ceramic materials for thermal barrier coatings, Journal of the European Ceramic Society 24 (2004) 1-10.
• [2] R. Vaßen, M.O. Jarligo, T. Steinke, D. Emil Mack, D. Stöver, Overview on advanced thermal barrier coatings, Surface & Coatings Technology 205 (2010) 938-942.
• [3] C. Amaya, W. Aperador, J.C. Caicedo, P. Prieto, F.J. Espinoza-Beltrán, J. Muñoz-Saldaña, G. Zambrano, Corrosion study of Alumina/Yttria-Stabilized Zirconia (Al2O3/YSZ) nanostructured Thermal Barrier Coatings (TBC) exposed to high temperature treatment, Corrosion Science 51 (2009) 2994-2999.
• [4] E. Garcia, J. Mesquita-Guimarães, P. Miranzo, M.I. Osendi, Crystallization studies in mullite and mullite-YSZ beads, Journal of the European Ceramic Society 30 (2010) 2003-2008.
• [5] O. Fabrichnaya, M.J. Kriegel, J. Seidel, G. Savinykh, L.P. Ogorodova, I.A. Kiseleva, H.J. Seifert, Calorimetric investigation of the La2Zr2O7, Nd2Zr2O7, Sm2Zr2O7 and LaYO3 compounds and CALPHAD assessment of the La2O3-Y2O3 system, Thermochimica Acta, 2011 [in press].
• [6] W. Ma, D. Mack, J. Malzbender, R. Vaßen, D. Stöver, Yb2O3 and Gd2O3 doped strontium zirconate for thermal barrier coatings, Journal of the European Ceramic Society 28 (2008) 3071-3081.
• [7] In situ small-angle neutron scattering study of La2Zr2O7 and SrZrO3 ceramics for thermal barrier coatings, Scripta Materialia 55 (2006) 545-548.
• [8] C.G. Levi, Emerging materials and processes for thermal barrier systems, Current Opinion in Solid State and Materials Science 8 (2004) 77-91.
• [9] S.A. Tsipas, Effect of dopants on the phase stability of zirconia-based plasma sprayed thermal barrier coatings, Journal of the European Ceramic Society 30 (2010) 61-72.
• [10] A.N. Khan, S.H. Khan, F. Ali, M.A. Iqbal, Evaluation of ZrO2-24MgO ceramic coating by eddy current method, Computational Materials Science 44 (2009) 1007-1012.
• [11] P. Diaz, M.J. Edirisinghe, B. Ralph, Microstructural changes and phase transformations in a plasma-sprayed zirconia-yttria-titania thermal barrier coating, Surface and Coatings Technology 82 (1996) 284-290.