PRODUCTION AND PROPERTIES OF SEMI-FINISHED TANTALUM
Abstract
The possibilities for producing and utilizing parts of tantalum and a powder-metallurgical process are described in detail. The degree of compacting pressure for tantalum bars of finely divided tantalum metal powder has a high influence on the properties of the compacted bars. The latter are sintered under high vacuum by direct conduction of current without presintering. Detailed investigations concern the influence of sintering temperature and duration on the proper ties of the supersintered bars and their loss of weight and indicate different procedures for increasing sintering temperature. Measurement of temperature and of vacuum as well as spectrum analysis of the expelled gases are important. Experiments of forming supersintered bars by flat forging, pressing and rolling together with round-forging and drawing give an appreciation of finish-processing possibilities. Experiments with tantalum waste recovery are particularly significant. The properties of experimentally obtained products are given.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1963
- Accession Number
- AD0407203
Entities
People
- Jiri Vacek
Organizations
- Joint Publications Research Service