Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"mayenite"”.
-
Mayenit(Ca 12 Al 14 O 33 )-Bildung durch die Festkörperreaktion zwischen CaAl 2 O 4 und Ca 3 Al 2O 6
Mayenite (Ca12Al14O33) was indicated as oxygen ion conductor because of its high ion conductivity by high temperature [1]. The ion conductivity of polycrystalline mayenite is about 1 order of magnitude smaller than that of yttrium stabilized ZrO2 [1]. Mayenite has a cubic crystal structure with the …
-
Analysis of slurry composition for the direct ink writing of mayenite electride for use in thermionic cathodes
… cathodes, such as multi-channel hollow cathodes. Mayenite electride, a calcium aluminate ceramic with a cage-like lattice structure that traps in electrons, has been identified as a low-work function ceramic that could be used for these thermionic cathodes. This thesis explores an additive …
-
Incorporation of oxygen, sulfur and chlorine in ironmaking and steelmaking slags containing fluxes based on mayenite
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1995.
-
Investigation of the conversion of fuels in the presence of solid oxygen carriers and the development of a plasma-assisted chemical looping system for H2 production
… of biomass (wood pellets), by Fe2O3 or mayenite-supported CuO was studied in a fluidised bed. This was to understand how efficient the wood pellets were combusted by the oxygen carriers, as well as the distribution of the products. A tar measurement system, based on a plasma reactor, was …
-
[Ca₂₄Al₂₈O₆₄]⁴⁺(e⁻)₄ electride as a novel support system for iron-based Fischer-Tropsch synthesis
… novel support. Iron supported on the unreduced mayenite precursor, [Ca₂₄Al₂₈O₆₄]⁴⁺(O²⁻)₂, and unpromoted precipitated iron diluted in γ-alumina were used as control/baseline catalysts. The testing of these catalysts was conducted at 240 °C and 15 bar with a 2:1 H₂/CO ratio. The electride and …