Accession Number : AD0726738

Title :   A Theory of the Replacement Partition Function for Crystals in Nucleation Theory,

Corporate Author : STANFORD UNIV CALIF DEPT OF MATERIALS SCIENCE

Personal Author(s) : Pound,G. M. ; Nishioka,Kazumi ; Lothe,Jens

Report Date : 1971

Pagination or Media Count : 32

Abstract : The replacement partition function is formulated for crystals and it is concluded that: (1) The replacement partition function is a well-defined fundamental quantity of the bulk crystal. (2) It is due to the translational and rotational motions of the clusters in the bulk for which all the atoms are fixed at the lattice points defined for each cluster, which is in agreement with the assertion by Lothe and Pound. (3) It is reasonable to ascribe the surface free energy of a cluster in vapor to the ratio of the internal partition functions of the cluster in vapor and in bulk crystal, respectively, which is also in agreement with the assertion by Lothe, Pound and co-workers. (Author)

Descriptors :   (*CRYSTAL GROWTH, CONDENSATION), (*NUCLEATION, THEORY), MOLECULAR ASSOCIATION, FREE ENERGY, SURFACE PROPERTIES, KINETIC ENERGY, POTENTIAL ENERGY, THEOREMS

Subject Categories : Crystallography
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE