Formation and ionic conductivity of nitrogen-doped ß-alumina ceramics
| Autor: | T. Ohta, S. Sugaike, Imai Atsuo, Mituo Harata |
|---|---|
| Rok vydání: | 1981 |
| Předmět: |
Chemical substance
Materials science Inorganic chemistry Analytical chemistry chemistry.chemical_element Nitrogen doped General Chemistry Condensed Matter Physics Nitrogen law.invention chemistry Magazine law Alumina ceramic Ionic conductivity General Materials Science Science technology and society Nitrogen source |
| Zdroj: | Solid State Ionics. :409-412 |
| ISSN: | 0167-2738 |
| Popis: | Nitrogen-doped s-Al2O3, (1.2+y) Na 2 O s ( 11−x 2 ) Al 2 O 3 s x AlN , was obtained by hot-pressing technique using AlN as the nitrogen source, Identification of products in the system Na2OAl2O3AlN, lattice-constant measurements of β- and s″-Al2O3 and ionic conductivity measurements were carried out. Monophase s-Al2O3 appeared in the x = 0-0.7 region. Nitrogen stabilized s″-Al2O3. Mixed β- and s″-Al2O3 appeared in the x=1.1–1.3 region. Ionic conductivity for monophase s-Al2O3 appeared in the x=1.1–1.3 increased from 1.0 × 10−1 Ω−1 cm− to 1.5 × 1.0−1 Ω−1 cm−1. Ionic conductivity for mixed β- and s″-Al2O3 was 2.5 Ω−1 cm−1 at x = 1.3. |
| Databáze: | OpenAIRE |
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