Results 311 to 320 of about 153,871 (359)

Thermal conductivity of thermal barrier coatings

Russian Aeronautics (Iz VUZ), 2009
The results of experimental studies of the thermal conductivity coefficient of thermal barrier coatings (TBC) are presented. A technique for its determination is proposed and tested. The data of design evaluation of the TBC thickness distribution along the outline of a cooled turbine blade are given.
A. V. Il’inkov, T. A. Il’inkova, A. V. Shchukin, I. V. Basargin, R. R. Valiev   +4 more
openaire   +1 more source

Thermal Barrier Coatings for Superalloys

Superalloys 1980 (Fourth International Symposium), 1980
The current status of ceramic thermal barrier coatings for protection of turbine airfoil components is reviewed. Test results for an early duplex coating system ZrO2-12% Y2O3/Ni-16% Cr-6% Al-0.6% Y, improved system ZrO2-8% Y2O3/Ni-17% Cr-5% Al-0.35% Y, and air/fuel impurity tolerant systems based on ZrO2-8% Y2O3, 2CaO-SiO2, and a MgO-NiCrAlY cermet are
R.A. Miller, S.R. Levine, P.E. Hodge
openaire   +1 more source

Survivability of thermal barrier coatings

Materials Science and Engineering, 1987
Abstract Thermal barrier ceramic oxide coatings are gaining wide acceptance for applications in heat engines. Such ceramic thermal shields are used in conjunction with MCrAlY-type intermediate bond coatings, applied over superalloy substrates. The thermal barrier coatings must endure extreme thermal cycling and hostile chemical environments.
H. Herman, N.R. Shankar
openaire   +1 more source

Erosion of thermal barrier coatings

Materials at High Temperatures, 2003
AbstractThermal barrier coatings have been used within gas turbines for over 30 years to extend the life of hot section components. Thermally sprayed ceramics were the first to be introduced and are widely used to coat combustor cans, ductwork, platforms and more recently turbine aerofoils of large industrial engines.
J. R. Nicholls, R. G. Wellman, M. J. Deakin   +2 more
openaire   +1 more source

Thermal Strain-Tolerant Abradable Thermal Barrier Coatings

Journal of Engineering for Gas Turbines and Power, 1991
Thermal barrier coatings (TBCs) are applied to hot gas path surfaces to reduce metal temperatures and thermal stresses for improved turbine component durability. Improvements in engine performance are achieved when TBCs enable reductions in cooling air usage and turbine blade tip-shroud clearances.
openaire   +1 more source

Ceramic thermal barrier coatings

Industrial & Engineering Chemistry Product Research and Development, 1984
Revue des recherches entreprises depuis les annees 50. Le developpement, dans les turbines a gaz, de ces revetements est du a l'amelioration des procedes d'utilisation et a l'analyse de leurs proprietes.
Curt H. Liebert, Robert A. Miller
openaire   +1 more source

Thermal Barrier Coatings

There are different methods of coating are used to provide the protection from corrosion, wear, erosion along with the provision for lubrication and thermal insulation for the materials especially having applications in high temperature structural members.
Kiran Prakasha A., Vinay B. U., Shivakumar K. Malladad, Gagan Shetty   +3 more
openaire   +1 more source

Microstructure and Thermal Behavior of Thermal Barrier Coatings

Journal of Thermal Spray Technology, 2008
Yttria stabilized zirconia thick coatings were thermally sprayed from two different feedstock powders. Coating characteristics such as density, crystalline phase composition, and microstructure were evaluated. The thermal expansion coefficient and thermal diffusivity were measured as a function of temperature up to 800 °C and analyzed in terms of the ...
E. Garcia, P. Miranzo, R. Soltani, T. W. Coyle   +3 more
openaire   +1 more source

Failure Mechanism for Thermal Fatigue of Thermal Barrier Coating Systems

Journal of Thermal Spray Technology, 2008
Abstract High temperature thermal fatigue causes the failure of Thermal Barrier Coating (TBC) systems. Due to the difference in thickness and microstructure between thick TBCs and traditional thin TBCs, they cannot be assumed a-priori to possess the same failure mechanisms.
C. Giolli, A. Scrivani, G. Rizzi, F. Borgioli, BOLELLI, Giovanni, LUSVARGHI, Luca   +5 more
openaire   +3 more sources

Protective Thermal Barrier Coatings

2016
The goal of using TBCs is, e.g. to reduce thermal conductivity between exhaust gases and the blade material, anti-corrosion protection and increased wear resistance.
Tomasz Sadowski, Przemysław Golewski
openaire   +1 more source