Oxygen-covered tungsten crystal shape: time effects, equilibrium, surface energy and the edge-rounding temperature

Abstract

The equilibrium crystal shape (ECS) of oxygen-covered tungsten micricrystal is studied as a function of temperature. The specially designed ultrafast crystal quenching setup with the cooling rate of 6000 K/s allows to draw conclusions about ECS at high temperatures. The edge-rounding transition is shown to occur between 1300 K and 1430 K. The ratio of surface free energies $\gamma (111)/\gamma (211)$ is determined as a function of temperature.

8 pages, 10 figures, submitted for publication

References in corpus (2)

• Observation of the vertex-rounding transition for a crystal in equilibrium: oxygen-covered tungsten
• Simulation of adsorbate-induced faceting on curved surfaces

Cited by in corpus (1)

• Helium Ion Microscopy