Textured alumina ceramics were obtained by Spark Plasma Sintering of undoped commercial alpha-Al2O3 powders. Various parameters (density, grain growth, grain size distribution) of the alumina ceramics, sintered at two typical temperatures 1400 degrees C and 1700 degrees C, are investigated. Quantitative textural and structural analysis, carried out using a combination of Electron Back Scattering Diffraction and X-ray diffraction, are represented in the form of mapping and pole figures. The mechanical properties of these textured alumina ceramics include high elastic modulus and hardness values with high anisotropic nature, opening the door for a large range of applications. Copyr. 2013 AIP Publishing LLC
Growth and texture of spark plasma sintered Al2O3 ceramics: A combined analysis of X-rays and electron back scatter diffraction / D., Pravarthana; D., Chateigner; Lutterotti, Luca; M., Lacotte; S., Marinel; P. A., Dubos; I., Hervas; E., Hug; P. A., Salvador; W., Prellier. - In: JOURNAL OF APPLIED PHYSICS. - ISSN 1089-7550. - STAMPA. - 113:15(2013), pp. 153510-1-153510-7. [10.1063/1.4802439]
Growth and texture of spark plasma sintered Al2O3 ceramics: A combined analysis of X-rays and electron back scatter diffraction
Lutterotti, Luca;
2013-01-01
Abstract
Textured alumina ceramics were obtained by Spark Plasma Sintering of undoped commercial alpha-Al2O3 powders. Various parameters (density, grain growth, grain size distribution) of the alumina ceramics, sintered at two typical temperatures 1400 degrees C and 1700 degrees C, are investigated. Quantitative textural and structural analysis, carried out using a combination of Electron Back Scattering Diffraction and X-ray diffraction, are represented in the form of mapping and pole figures. The mechanical properties of these textured alumina ceramics include high elastic modulus and hardness values with high anisotropic nature, opening the door for a large range of applications. Copyr. 2013 AIP Publishing LLC| File | Dimensione | Formato | |
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