Experimental Measurement of Negative Grain-Boundary Triple Line Tension
Abstract
We measured negative grain-boundary triple line tension within bulk hard-sphere colloidal polycrystals. Compared to the grain boundaries, the tension is predominantly distributed in the grain lattices. The negative tension drives finite premelting at triple junctions and leads to a marginally denser lattice nearby.
Fields of Study & Subjects
Material Dynamics and Properties
Solidification and crystal growth phenomena
Microstructure and mechanical properties
Publication details
- Journal / source
- Physical Review Letters
- Volume
- 136
- Issue
- 6
- Pages
- 068201–068201
- Publication date
- 15 January 2026
- Language
- EN