PROTECTION OF REFRACTORY METALS FOR HIGH TEMPERATURE SERVICE
Abstract
The vapor pressure of each of the niobium-zinc compounds was measured as a function of temperature. The kinetics of formation of the niobiumzinc compounds on pure niobium from zinc vapor were investigated, and oxidation tests were made on several coatings applied with zinc vapor. The mechanisms involved and the kinetics of the removal of interstitial impurities from niobium by the niobium-zinc compounds were also studied. Further studies of the effects of alloying elements added to the zinc bath used to coat niobium by the dip process confirmed that small amounts of nickel and aluminum in the proper combination are beneficial. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 16, 1961
- Accession Number
- AD0265418
Entities
People
- B.f. Brown
- R.a. Meussner
Organizations
- United States Naval Research Laboratory