Surface Densification of Silica Ceramic

Wei Hu

doi:10.4028/www.scientific.net/KEM.633.69

Paper Titles

Influence of Si₃N₄ Adding on the Performance of Al-Al₂O₃ Composite
p.53

Influence of Aluminum Contents on Phase Behavior and Properties of TiN-Sialon-Corundum Composites by Aluminothermic Reduction Nitridation
p.57

Effect of Mineral Composition and Sintering Temperature on the Synthetic Cordierite
p.61

The Effects of Mineral Composition and Sintering Temperature on Synthetic Mullite
p.65

Surface Densification of Silica Ceramic
p.69

Preparation and Characterization of Layered Rare Earth Compound
p.73

Synthesis and Characterization of Ce_0.5Zr_0.5O₂ Nanocomposite and its Supported Pd-Only Catalysis Activity
p.77

Microstructure and Properties of Ti(C,N)-Based Cermets
p.82

The Properties of Plastic Phase Mullite-SiC Bricks and its Utilization in Cement Kilns
p.88

HomeKey Engineering MaterialsKey Engineering Materials Vol. 633Surface Densification of Silica Ceramic

Surface Densification of Silica Ceramic

Abstract:

A rapid sintering densification treatment was performed on the surface of silica ceramic by using hydrogen-oxygen flame. The effects of surface densification processing on the phase composition, microstructure and bending strength of the silica ceramic were studied. Results showed that, after the densification processing, there was no obvious change in the phase composition of the silica ceramic but gradual transition structure happened. The transition structure not only prevents the abrupt structural change from the densification layer to porous layer of the silica ceramic but also guarantees the strong interface bonding between adjacent layers, leading to the improved bending strength. The present densification processing could realize the integrated fabrication of silica material with different density.