Accession Number:

AD0261821

Title:

VACUUM REFINING OF NIOBIUM,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Report Date:

1961-07-27

Pagination or Media Count:

7.0

Abstract:

Conclusions As a result of vacuum refinding at 2300 to 2350 C, not only the adsorbed and disolved gases are removed from the Nb, but also such impurities as Pb, Si, and Fe and Arc fusion of the refined Nb in neutral media purified by passage through fused Li protects the metal from contamination by impurities. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE