Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1499471 | Scripta Materialia | 2011 | 4 Pages |
Abstract
Bulk platinum-rich glasses exhibiting high bulk moduli and Poisson ratios are introduced. A bulk modulus of 217 GPa and a Poisson’s ratio of 0.43 are measured, the highest values reported to date for a metallic glass. The present glasses demonstrate an unusual capacity for “liquid-like” deformation characterized by low resistance to shear flow and high resistance to cavitation, enabling extensive bending ductility in the absence of fracture. An indirect estimate of the fracture toughness yields a value of ∼125 MPa m1/2.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Marios D. Demetriou, Michael Floyd, Chase Crewdson, Joseph P. Schramm, Glenn Garrett, William L. Johnson,