Chapter 24. Microstructure and Mechanical Properties of Non-Oxide Laminated Composites
- Rajan Tandon,
- Andrew Wereszczak and
- Edgar Lara-Curzio
Published Online: 27 MAR 2008
Copyright © 2007 The American Ceramics Society
Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2
How to Cite
Sciti, D., Nagliati, M., Silvestroni, L., Guicciardi, S. and Pezzotti, G. (2006) Microstructure and Mechanical Properties of Non-Oxide Laminated Composites, in Mechanical Properties and Performance of Engineering Ceramics II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 2 (eds R. Tandon, A. Wereszczak and E. Lara-Curzio), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291313.ch24
- Published Online: 27 MAR 2008
- Published Print: 1 JAN 2006
Print ISBN: 9780470080528
Online ISBN: 9780470291313
The aim of this work was the investigation of the microstructure and properties of layered composites produced with the tape casting technique stacking electrically insulating and conductive layers in the AIN–SiC–MoSi2 system. The microstructure of the laminated material was investigated by SEM–EDS technique. Macroscopic residual stresses developed in the composite were qualitatively evaluated by Raman piezo–spectroscopy. Flexural strength was determined in 4–pt bending, fracture toughness was evaluated by the SEVNB method. The mechanical properties of the ceramic laminate were compared to those of the stress–free constituent materials in order to understand the effects of the residual stresses.
By Raman piezo–spectroscopy, compression was found in the insulating layers and tension in the conductive layers. Thanks to the compressive state of the outer layer, the fracture strength and toughness of the laminated composite were higher than those of the stress–free constituent materials.