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US 11,691,197 B2Granted
Spherical tantalum powder, products containing the same, and methods of making the same
AssigneeGlobal Advanced Metals USA, Inc.
InventorsCraig M. Sungail, Aamir Dawood Abid
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Abstract
Tantalum powder that is highly spherical is described. The tantalum powder can be useful in additive manufacturing and other uses. Methods to make the tantalum powder are further described as well as methods to utilize the tantalum powder in additive manufacturing processes. Resulting products and articles using the tantalum powder are further described.
Claims34
Tantalum powder comprising
- a. a spherical shape wherein the powder has an average aspect ratio of from 1.0 to 1.25;
- b. a purity of tantalum of at least 99.99 wt % Ta based on total weight of said tantalum powder, excluding gas impurities;
- c. an average particle size of from about 0.5 micron to about 250 microns;
- d. an apparent density from about 4 g/cc to about 12.3 g/cc;
- e. a true density of from 16 g/cc to 16.6 g/cc;
- and
- f. a Hall flow rate of 20 sec or less.
4 more elements
Dependencies are inferred from the claim text.