Mechanical fatigue observations in monolithic non-transforming ceramics
This paper presents an overview of the current status of research into fatigue in monolithic non-transforming ceramics. The terminology of the field, early approaches to fatigue in ceramics and the micromechanisms responsible for fatigue effects are reviewed. At low and intermediate temperatures the unloading part of the cycle leads to intense crack wake interactions and generally accelerates crack propagation, especially in materials with rough and non-matching crack waves. At high temperatures and depending on the amount of viscous intergranular phase, damping effects can suppress the low temperature fatigue mechanisms and even lead to a slower crack propagation than under static load.
Bibliographic Reference: Paper presented: Festigkeitsseminar über keramische (Verbund-) Werkstoffe, Wien (AT), September 23-24, 1993
Availability: Available from (1) as Paper EN 37832 ORA
Record Number: 199410544 / Last updated on: 1994-11-28
Original language: en
Available languages: en