Results 141 to 150 of about 55,297 (275)

Emittance and absorptance of NASA ceramic thermal barrier coating system [PDF]

open access: yes
Spectral emittance measurements were made on a two-layer ceramic thermal barrier coating system consisting of a metal substrate, a NiCrAly bond coating and a yttria-stabilized zirconia ceramic coating.
Liebert, C. H.
core   +1 more source

Creep of plasma sprayed zirconia [PDF]

open access: yes
Specimens of plasma-sprayed zirconia thermal barrier coatings with three different porosities and different initial particle sizes were deformed in compression at initial loads of 1000, 2000, and 3500 psi and temperatures of 1100 C, 1250 C, and 1400 C ...
Adams, J. W.   +2 more
core   +1 more source

Thermal barrier coating life-prediction model development [PDF]

open access: yes
Life predictions are made for two types of strain-tolerant and oxidation-resistant Thermal Barrier Coating (TBC) systems produced by commercial coating suppliers to the gas turbine industry.
Neumann, J., Strangman, T. E.
core   +1 more source

Compatibility of grain-stabilized platinum with candidate propellants for resistojets [PDF]

open access: yes
Resistojets are candidates for space station auxiliary propulsion, and should be characterized by both long life and multipropellant operations, requirements limited by available materials.
Grisnik, S. P., Whalen, M. V.
core   +1 more source

Metal-to-ceramic seals for thermionic converters - A literature survey [PDF]

open access: yes
Metal to ceramic sealing techniques for thermionic converters - literature ...
Phillips, W. M.
core   +1 more source

Performance of thermal barrier coatings in high heat flux environments [PDF]

open access: yes
Thermal barrier coatings were exposed to the high temperature and high heat flux produced by a 30 kW plasma torch. Analysis of the specimen heating rates indicates that the temperature drop across the thickness of the 0.038 cm ceramic layer was about ...
Berndt, C. C., Miller, R. A.
core   +1 more source

THERMAL BARRIER COATING BY ELECTRON BEAM-PHYSICAL VAPOR DEPOSITION OF ZIRCONIA CO-DOPED WITH YTTRIA AND NIOBIA. doi: 10.5028/jatm.2010.02026910

open access: yesJournal of Aerospace Technology and Management, 2011
The most usual ceramic material for coating turbine blades is yttria doped zirconia. Addition of niobia, as a co-dopant in the Y2O3-ZrO2 system, can reduce the thermal conductivity and improve mechanical properties of the coating.
Daniel Soares de Almeida   +3 more
doaj  

Ceramic thermal-barrier coatings for cooled turbines [PDF]

open access: yes
Coating systems consisting of a plasma sprayed layer of zirconia stabilized with either yttria, magnesia or calcia over a thin alloy bond coat have been developed, their potential was analyzed and their durability and benefits evaluated in a turbojet ...
Liebert, C. H., Stepka, F. S.
core   +1 more source

Feasibility of yttria-stabilized zirconia [PDF]

open access: yesAmerican Journal of Orthodontics and Dentofacial Orthopedics, 2017
openaire   +2 more sources

Development of high temperature materials for solid propellant rocket nozzle applications [PDF]

open access: yes
Aspects of the development and characteristics of thermal shock resistant hafnia ceramic material for use in solid propellant rocket nozzles are presented.
Lineback, L. D., Manning, C. R., Jr.
core   +1 more source

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