Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Gustavo C. C. Costa"'
Autor:
Anita Garg, Gustavo C. C. Costa, Kang N. Lee, Wayne D. Jennings, Bernadette J. Puleo, Deborah L. Waters, Dagny E. Sacksteder
Publikováno v:
Journal of the European Ceramic Society. 41:1639-1653
A slurry process was employed to develop advanced environmental barrier coatings (EBCs) for SiC based composites. Yb2Si2O7 and mullite (3 Al2O3⋅2 SiO2) were chosen as the base materials for the bond coat to enable temperatures beyond the melting po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b7c8bc0ddd3243d3d24a4648641c35e
https://doi.org/10.1016/j.jeurceramsoc.2020.10.012
https://doi.org/10.1016/j.jeurceramsoc.2020.10.012
Publikováno v:
ACS Earth and Space Chemistry. 4:2144-2152
Water solubility in carbonatite magmas at 1 bar total pressure has been explored. Three compositions of carbonatite magma have been studied: natrocarbonatite from Oldoinyo Lengai, Tanzania, and two...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90d0e03d4e33a6bf1100c07df223a6fb
https://doi.org/10.1021/acsearthspacechem.0c00222
https://doi.org/10.1021/acsearthspacechem.0c00222
Autor:
Jamesa L. Stokes, Narottam P. Bansal, Benjamin A. Kowalski, Gustavo C. C. Costa, Bryan J. Harder
Publikováno v:
Journal of the American Ceramic Society. 103:1446-1453
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63d7ac80e8860b4072f520ddacb1bae4
https://doi.org/10.1111/jace.16816
https://doi.org/10.1111/jace.16816
Autor:
P. G. Neudeck, David J. Spry, Gustavo C. C. Costa, Amir Avishai, Gary W. Hunter, Robert S. Okojie, Dorothy Lukco, Ralph P. Harvey, Leah M. Nakley
Publikováno v:
Earth and Space Science. 5:270-284
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f223a6402b17d000bb45f5ce115305b0
https://doi.org/10.1029/2017ea000355
https://doi.org/10.1029/2017ea000355
Publikováno v:
Journal of the American Ceramic Society. 101:3674-3693
The reactivity between rare-earth (RE-) oxide stabilized ZrO2 or HfO2 thermal barrier coatings (TBCs) and a calcium-magnesium-aluminum-silicate (CMAS) melt was studied at 1310°C. These reactions are representative of the ingestion of siliceous mater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc02c0c120f4ca1f201d9df241a89af7
https://doi.org/10.1111/jace.15516
https://doi.org/10.1111/jace.15516
Autor:
Ralph P. Harvey, Gustavo C. C. Costa, Nathan S. Jacobson, Gary W. Hunter, B. G. Radoman-Shaw, Dorothy Lukco, Leah M. Nakley
Publikováno v:
Corrosion Science. 132:260-271
In general support of planetary exploration missions, the chemical, structural and microstructural behavior of stainless steels 304 and 316 was probed after exposure to a gas mixture with temperature, pressure, and composition mimicking the Venus low
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccac8f6e7dcde188b37a49961822be37
https://doi.org/10.1016/j.corsci.2018.01.002
https://doi.org/10.1016/j.corsci.2018.01.002
Publikováno v:
The Journal of Chemical Thermodynamics. 161:106483
Environmental barrier coatings are necessary to protect SiC based ceramics and composites from water vapor degradation in harsh engine environments. Currently, rare earth (RE) silicates are the most promising systems to protect SiC based ceramics and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1f9e351bcc9b3890af41f61bb96ec7a
https://doi.org/10.1016/j.jct.2021.106483
https://doi.org/10.1016/j.jct.2021.106483
Publikováno v:
Journal of the European Ceramic Society. 35:4259-4267
The Yb 2 O 3 –SiO 2 system is a promising coating material for silicon-based ceramics and composites in combustion environments due to the low silica activity in this silicate system. These activities lead to lower reactivity with the water vapor c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37abb9707e43de66a0f9c8007bc0516b
https://doi.org/10.1016/j.jeurceramsoc.2015.07.019
https://doi.org/10.1016/j.jeurceramsoc.2015.07.019
Publikováno v:
2018 Joint Propulsion Conference.
This paper reviews recent iodine electric propulsion research and development activities at the NASA Glenn Research Center (GRC). Activities included (i) investigation of the iodine compatibility of BaO-CaO-Al2O3 impregnated tungsten hollow cathodes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63bc08d9342c1d51537daec5c8c916c8
https://doi.org/10.2514/6.2018-4422
https://doi.org/10.2514/6.2018-4422
Publikováno v:
Carbon. 80:544-550
The standard enthalpies of formation at 25 °C of nanodiamonds terminated by oxygen containing functional groups have been investigated by high-temperature oxidation calorimetry. Depending on the amount of oxygen containing functional groups, the nan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bf9b33a89ebb1d562a9f1dab31d9688
https://doi.org/10.1016/j.carbon.2014.08.094
https://doi.org/10.1016/j.carbon.2014.08.094