Fabrication of Textured β-Si3N4 and β-Sialon by Slip Casting in a Strong Magnetic Field and Reaction-Sintering |
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| Journal | Key Engineering Materials (Volumes 434 - 435) |
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| Volume | High-Performance Ceramics VI |
| Edited by | Wei Pan and Jianghong Gong |
| Pages | 5-8 |
| DOI | 10.4028/www.scientific.net/KEM.434-435.5 |
| Citation | Yoshio Sakka et al., 2010, Key Engineering Materials, 434-435, 5 |
| Online since | March, 2010 |
| Authors | Yoshio Sakka, Xin Wen Zhu |
| Keywords | Seeding, Slip Casting, ß-SiAlON, Strong Magnetic Field, Texture, β-Si3N4 |
| Abstract | This paper reviews the most important results by the authors on the processing of textured -Si3N4 and -sialon by slip casting in a strong magnetic filed of 12 T and reaction-sintering. The a, b-axis textured -Si3N4 and -sialon have been obtained using the static magnetic field because of the magnetic susceptibility of ca, b > c c for -Si3N4. However, the c-axis textured -Si3N4 has also been successfully obtained using a rotating magnetic field. The -Si3N4 crystal was found to exhibit substantially stronger orientation ability than the a-Si3N4 crystal regardless of the Si3N4 raw powders. It reveals that the -Si3N4 nuclei play a key role in the texture development in -Si3N4/-sialon. |
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