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Showing 1 to 10 of 10 for “"beta-alumina"”.
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The synthesis of beta alumina powders
Beta alumina solid electrolyte material is conventionally synthesized by the high temperature solid state reaction of α-Al₂O₃ with soda and a stabilizer ion such as lithia or magnesia. This reaction requires a reconstructive transformation of the α-Al₂O₃ oxygen sublattice and results in a two-phase …
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Low-Temperature, Glass-Like Properties of Crystalline Beta-Alumina
Made available in DSpace on 2015-05-13T15:22:13Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7913375.PDF: 4478280 bytes, checksum: d31658c5cbf060352842561aa85f1068 (MD5) Previous issue date: 1978
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Low temperature, glass-like properties of crystalline beta-alumina
… measured for single crystal Na, Ag, K, and Li B-alumina are characteristic of those found in amorphous materials. The specific heat is dominated below 1 K by a term approximately linear in temperature instead of the cubic dependence normal for crystals. All except K B-alumina have an …
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Electron paramagnetic resonance studies of beta-alumina, a prototype glass
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-20T19:00:40Z No. of bitstreams: 1 1980_kurtz.pdf: 3464088 bytes, checksum: f0bfd7d91a83444116d6c922156b3ea2 (MD5)
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Low-temperature dielectric response of beta-alumina at 16 GHz
… to measure the dielectric response of M$\sp+$ beta alumina at 16 GHz for temperatures between 0.3 and 20K. (M$\sp+$ refers to the monovalent cations Na, K, Ag, or Li.) These measurements include cw observations of the absorption and the dispersion, and the recovery of the absorption signal …
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Degradation of the beta-alumina electrolyte in a zebra cell
Beta-alumina solid electrolytes studied were subjected to charge and discharge cycles in a secondary, high energy density Na/beta-alumina/NaAlCl₄/FeCl₂ cell (known as the Zebra cell) at 250⁰ C. These electrolytes were studied by means of optical microscopy, as well as SEM and EDS analyses to est …
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Degradation of the beta-alumina electrolyte in a zebra cell
Beta-alumina solid electrolytes studied were subjected to charge and discharge cycles in a secondary, high energy density Na/beta-al~mina/NaA1Cl 4/FeC1 2 cell (known as the Zebra cell) at 250 c. These electrolytes were studied by means of optical microscopy, as well as SEM and EDS analyses to …
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Kinetic and Microstructural Aspects of Zircon Decomposition in the Presence of Alpha or Beta Alumina
Made available in DSpace on 2014-12-12T00:32:33Z (GMT). No. of bitstreams: 1 7212389.pdf: 3485379 bytes, checksum: 804014b5fbde3bc6bc78a92f7007436c (MD5) Previous issue date: 1971
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The synthesis of aluminium hydroxide and oxyhydroxide
Beta alumina is a ceramic with the ability to conduct certain ions. It is conventionally formed through the high temperature solid state reaction of α-alumina with soda and lithia, which results in a mixture of β- and β"-alumina phases. To maximise the amount of β"-alumina formed, a second heat …
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High temperature alkali corrosion kinetics of low expansion ceramics
… kinetics of silicon carbide, silicon nitride, alumina, mullite, cordierite, transformation toughened zirconia, and aluminum titanate were systematically investigated from 950°C to 1100°C in dry air containing 1.0 +/- 0.1 vol% alkali. The linear reaction rates observed at all temperatures …