Minerals Yearbook 1989: Columbium (Niobium) and Tantalum
The United States remained dependent on imports of columbium and tantalum materials, and the net trade deficit for these minerals was at the highest level since 1981. Most columbium price quotations rose slightly, whereas tantalum concentrate prices declined significantly. Overall reported consumption of columbium in the form of ferrocolumbium and nickel columbium was down, in line with a decline in steel production and a soft superalloy industry. The overall tantalum industry, which had showed signs of some improvement in recent years, was also down. Factory sales of tantalum capacitors were at the lowest level since 1986. However, much interest was being generated relating to tantalum's use in certain armor-piercing penetrator weapon systems.
- Research Organization:
- National Center for Health Statistics, Hyattsville, MD (United States)
- OSTI ID:
- 5352221
- Report Number(s):
- PB-91-214627/XAB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Minerals yearbook, 1993: Columbium (niobium) and tantalum. Annual report
Minerals yearbook, 1992: Columbium (niobium) and tantalum. Annual report
Related Subjects
POLICY AND ECONOMY
NIOBIUM
ECONOMICS
TANTALUM
IMPORTS
LEGISLATION
METAL INDUSTRY
NET TRADE
PRICES
PRODUCTION
RESOURCES
TABLES
USA
USES
WEAPONS
DEVELOPED COUNTRIES
ELEMENTS
INDUSTRY
METALS
NORTH AMERICA
TRADE
TRANSITION ELEMENTS
290400* - Energy Planning & Policy- Energy Resources