Chapter 59. Processing and Mechanical Properties of Alumina Platelet Reinforced Molybdenum Disilicide Laminates
- John B. Wachtman Jr.
Published Online: 26 MAR 2008
Copyright © 1993 The American Ceramic Society
Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10
How to Cite
Tuffé, S. C., Plucknett, K. P. and Wilkinson, D. S. (2008) Processing and Mechanical Properties of Alumina Platelet Reinforced Molybdenum Disilicide Laminates, in Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 2 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 9/10 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314234.ch59
- Published Online: 26 MAR 2008
- Published Print: 1 JAN 1993
Print ISBN: 9780470375273
Online ISBN: 9780470314234
- energy dispersive spectroscopy
Tape-casting has been used to develop molybdenum disilicide (MoSi2)/alumina(Al2O3) platelet composites having a high degree of microstructural anisotropy. The processing conditions were selected to achieve optimum dispersion of the AL203 platelets in the MoSi2, matrix. Mechanical properties have been studied from room temperature up to 1200° C. It is observed that both toughness and strength increase, with increasing temperature up to 1100° C. Platelet pull-out was apparent in the MoSi2, matrix, contributing to a fracture toughness of ∼4.8 MPa.m1/2 at room temperature rising to ∼6.5 MPa.m1/2 at 1100°C. A substantial increase of the strength (up to 78%) has been obtained when compared with monolithic MoSi2.