Grain Boundary Faceting of <10-10> Tilt Boundaries in Zinc.
Abstract
Faceted high-angle tilt grain boundaries have been observed in <10-10> zinc bicrystals and tricrystals grown from the melt. Faceting occurs over a 5-1/2 degrees range of misorientations for tilt angles between 31 and 36.5 degrees. The facets, which are asymmetric <10-10> tilt boundaries, are singular interfaces corresponding to energy cusps in the gamma-plot of grain boundary energy versus the inclination of the boundary surface. Limiting values of the depth of the energy cusps giving rise to the facets, and of the surface torques acting on the facets, are presented. The conditions for, and the mechanisms of facet formation are discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1970
- Accession Number
- AD0714227
Entities
People
- George H. Bishop Jr.
- Gordon A. Bruggeman
- William H. Hartt Iii
Organizations
- United States Army Research Laboratory