High purity tantalum metals and alloys containing the same are described.
The tantalum metal preferably has a purity of at least 99.995% and more
preferably at least 99.999%. In addition, tantalum metal and alloys
thereof are described, which either have a grain size of about 50 microns
or less, or a texture in which a (100) intensity within any 5% increment
of thickness is less than about 15 random, or an incremental log ratio of
(111):(100) intensity of greater than about -4.0, or any combination of
these properties. Also described are articles and components made from
the tantalum metal which include, but are not limited to, sputtering
targets, capacitor cans, resistive film layers, wire, and the like. Also
disclosed is a process for making the high purity metal which includes
the step of reacting a salt-containing tantalum with at least one
compound capable of reducing this salt to tantalum powder and a second
salt in a reaction container. The reaction container or liner in the
reaction container and the agitator or liner on the agitator are made
from a metal material having the same or higher vapor pressure of melted
tantalum. The high purity tantalum preferably has a fine and uniform
microstructure.