Accession Number : AD0286427

Title :   ON THE STABILITY OF THE STRUCTURE OF CRYSTAL SURFACES

Corporate Author : VIRGINIA UNIV CHARLOTTESVILLE MEDICAL SCHOOL

Personal Author(s) : CABRERA,N.

Report Date : DEC 1962

Pagination or Media Count : 1

Abstract : A crystal surface arbitrarily oriented is not necessarily stable. For some orientations, the crystal surface breaks up into a structure containing several new orientations, which might be called surface phases. A thermodynamical treatment is presented, to determine the conditions under which this happens, which follows exactly the same lines as the theory of equilibrium of volume phases. It shows that the equilibrium surface structure for a given average orientation will contain one, two or three orientations (surface phases) depending on the number of points a tangent plane touches the surface beta, representing the surface tension, per unit area of a reference surface, as a function of orientation. (Author)

Descriptors :   *CRYSTAL STRUCTURE, *CRYSTALS, FUNCTIONS(MATHEMATICS), PARTIAL DIFFERENTIAL EQUATIONS, PHASE STUDIES, STABILITY, STRESSES, INTERFACIAL TENSION, SURFACES, TENSOR ANALYSIS, THERMODYNAMICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE