Texture and Microstructure in Hot-Pressed Si3N4

Walker, T.; Mattern, N.; Herrmann, M.

doi:https://doi.org/10.1155/TSM.24.75

Texture, Stress, and Microstructure

/ / Article

On this page

AbstractCopyrightRelated articles

Special Issue

Textures in Ceramics

View this Special Issue

Open Access

Volume 24 |Article ID 931426 | https://doi.org/10.1155/TSM.24.75

T. Walker, N. Mattern, M. Herrmann, "Texture and Microstructure in Hot-Pressed Si3N4", Texture, Stress, and Microstructure, vol. 24, Article ID 931426, 17 pages, 1995. https://doi.org/10.1155/TSM.24.75

Texture and Microstructure in Hot-Pressed Si3N4

T. Walker,¹ N. Mattern,¹ and M. Herrmann²

¹lnstitut für Festkörper- und Werkstofforschung Dresden e.V., Germany

²Fraunhofer Institut für Keramische Technologien und Sinterwerkstoffe, Dresden, Germany

Received10 Sep 1994

Accepted07 Nov 1994

Abstract

The texture formation in hot-pressed Si3N4-ceramics was investigated by means of X-ray diffraction. A ring-fibre texture is observed with the basal plane (002) perpendicular to the hot-pressing axis. The texture index of hot-pressed Si3N4 depends on the starting powder mixture and process parameters. The α→β phase transfomation and the growth of β-Si3N4 needlelike grains are correlated with the texture. Measurements of fracture toughness and aspect ratio confirm the correlation with microstructure. The structure is the result of crystal growth and flow process during hot-pressing.

Copyright

Copyright © 1995 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

No related content is available yet for this article.

PDF

Download Citation

Citation

Order printed copiesOrder

Downloads0

Citations