EFFECT OF SURFACE PREPARATION AND GAS FLOW ON NITROGEN ATOM SURFACE RECOMBINATION
Abstract
The fraction of nitrogen atoms that recombine upon striking copper and platinum surfaces in a partly dissociated stream was determined. Vacuum-evaporated films and bulk metal samples subjected to various surface treatments were used. The results were independent of flow conditions and atom concentration. A glass substrate affected the activity of copper films, but not platinum. Simple surface treatments of bulk metal samples yielded recombination coefficients comparable to those of vacuum-evaporated films, which are about 0.03 for platinum and 0.04 for copper. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1961
- Accession Number
- AD0263283
Entities
People
- George M. Prok
Organizations
- National Aeronautics and Space Administration