Studies in the Kinetics and Thermodynamics of Sublimation.
Abstract
Measurements were made of the rate of vaporization of arsenic and antimony single crystals under varied conditions. Measurements were also made of reaction rates with molecular oxygen. Changes in surface morphology accompanying sublimation of arsenic, antimony, potassium chloride, and other substances were followed in order to elucidate the vaporization mechanism of these solids which have low vaporization coefficients. A 'zipper' mechanism appears to describe the vaporization of arsenic. Ultra high vacuum studies of cendensation and crystal growth were carried out on arsenic. A method and apparatus were developed to determine translational and internal energy accommodation coefficients. Thermodynamic properties of the As, As2O3, Sb, Sb2O3, and SeO2 systems were determined.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1975
- Accession Number
- ADA008433
Entities
People
- Gerd M. Rosenblatt
Organizations
- Pennsylvania State University