Abstract
The effect of the metal-layer geometry and of the interface structure on the fracture toughness of multilayer metal–ceramic composites is examined. The samples are produced by free sintering of layups consisting of alternating metal and ceramic layers. The ceramic layers are prepared by rolling fine pyrophyllite powders into strips. The metal layers are prepared from stainless steel fabric. Before sintering, the layups are pressed across and along the layers. The samples show 24–25% residual porosity after the free sintering of layups containing 15 vol.% metal phase at 1000°C. The fracture energy of the samples is determined. Their microstructure is examined. It is shown that the use of metal fabric substantially increases the fracture energy of composites. This is due to the developed skeleton structure of multilayer ceramic–metal fabric composites, which weakens the adverse effect of the residual porosity and sometimes poor adhesive contact between the metal and ceramic components on fracture toughness.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
