Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1498558 | Scripta Materialia | 2014 | 4 Pages |
Abstract
The fracture toughness of submicron Zr65Ni35 sputter-deposited films is thickness dependent. The failure mechanism involves corrugations for the thickest films and a transition—at 500 nm thickness—to a perfectly flat fracture surface. Both mechanisms are brittle-type, even though the elastic and plastic properties are independent of thickness and similar to the expected ductile bulk response. Finite-element simulations unravel the origin of the size effect and the transition of failure mode from the constraint on plastic dissipation.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Matteo Ghidelli, Sébastien Gravier, Jean-Jacques Blandin, Jean-Pierre Raskin, Frédéric Lani, Thomas Pardoen,