Fabrication of Textured β-Si3N4 and β-Sialon by Slip Casting in a Strong Magnetic Field and Reaction-Sintering

Yoshio Sakka; Xin Wen Zhu

doi:10.4028/www.scientific.net/KEM.434-435.5

Paper Titles

Preface and Sponsors

Current Status of Oxide Fibre-Reinforced Oxide Ceramic Matrix Composites for Gas Turbine Applications
p.1

Fabrication of Textured β-Si₃N₄ and β-Sialon by Slip Casting in a Strong Magnetic Field and Reaction-Sintering
p.5

Large Bulk Al₂O₃/ZrO₂ (Y₂O₃) Nanocrystalline Composites Prepared by Combustion Synthesis under High Gravity
p.9

Ultra-High-Hard Composites of TiC-TiB₂ Prepared by Combustion Synthesis under High Gravity
p.13

A Study on the Porous Microstructure of Yakbone Bioceramic
p.17

Effect of Microstructure on Removal Mechanism of Solid State Sintered Silicon Carbide in Polishing Procedure
p.21

Densification and Mechanical Properties of B₄C Based Composites Sintered by Reaction Hot-Pressing
p.24

Mechanical and Tribological Properties of 3D Carbon Fiber Reinforced SiC Composites Prepared by Liquid Silicon Infiltration
p.28

HomeKey Engineering MaterialsKey Engineering Materials Vols. 434-435Fabrication of Textured β-Si3N4 and β-Sialon by...

Fabrication of Textured β-Si₃N₄ and β-Sialon by Slip Casting in a Strong Magnetic Field and Reaction-Sintering

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.