Chapter 32. Silicon Nitride Tensile Strength Database from CTP Processing for Reliability Project
- John B. Wachtman Jr.
Published Online: 28 MAR 2008
Copyright © 1993 The American Ceramic Society
Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8
How to Cite
Foley, M. R., Pujari, V. K., Sales, L. C. and Tracey, D. M. (1993) Silicon Nitride Tensile Strength Database from CTP Processing for Reliability Project, in Proceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials, Part 1 of 2: Ceramic Engineering and Science Proceedings, Volume 14, Issue 7/8 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470314180.ch32
- Published Online: 28 MAR 2008
- Published Print: 1 JAN 1993
Print ISBN: 9780470375266
Online ISBN: 9780470314180
Tensile strength data generated in Norton's CTP Processing for Reliability Project will be presented for a HIPed 4% yttria-silicon nitride. This database represents the result of an extensive multivariable experimental matrix designed to identify an optimized process directed at eliminating or minimizing critical flaws. The strength data follow from room-temperature fast-fracture tests of net-shaped-formed, pressure-cast cylindrical buttonhead tensile bars. Results of over 100 tensile tests coupled with detailed fractography will be summarized using Weibull statistics, including competing risk analyses. Specimen fabrication and mechanical testing issues (e.g., machining, strain gauging), which were addressed to ensure the integrity of the strength database, will also be discussed.