Plane Stress Fracture Toughness Testing of Freestanding Ultra‐Thin Nanocrystalline Gold Films on Water Surface
Myoung Song,
Boo Soo Ma,
Seung Jin Oh
et al.
Abstract:Fracture toughness, which is the resistance of a material to crack propagation, is a critical material property for ensuring the mechanical reliability of damage‐tolerant design. Recently, damage‐tolerant design is introduced to flexible electronics by adopting micro‐cracked ultra‐thin nanocrystalline (NC) gold films as stretchable electrodes in a plane stress state. However, experimental investigation of the plane stress fracture toughness of those films remains challenging due to the intrinsic fragility from… Show more
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