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OwnerDarryl D. Amickinventor
Estimating the term…
Systems and methods for refining or otherwise processing tungsten alloys, including ferrotungsten powder and articles formed therefrom, and methods for detecting the presence of the same. The methods include at least one of magnetically-separating and particle-size-separating ferrotungsten or ferrotungsten-containing powder. In some embodiments, powder may be separated to remove fine particles, and optionally to separate the remaining particles into fractions containing selected particle size distributions. The powder additionally or alternatively may be separated into at least magnetic and non-magnetic fractions. In some embodiments, portions of two or more size and/or magnetism fractions are mixed to provide a ferrotungsten-containing feedstock. Selected fractions resulting from the size and magnetism separation steps may be utilized to provide a ferrotungsten-containing feedstock from which articles are produced and which may include additional components.
Firearm ammunition, comprising:
Firearm ammunition comprising a ferrotungsten-containing projectile, wherein the projectile at least substantially comprises a non-magnetic fraction of ferrotungsten powder.
Firearm ammunition comprising a ferrotungsten-containing projectile, wherein the projectile comprises:
Firearm ammunition comprising a ferrotungsten-containing projectile, wherein the projectile comprises a ferrotungsten-containing powder at least substantially comprising Fe7W6 phase and BCC tungsten phase particles.
Firearm ammunition comprising a ferrotungsten-containing projectile, wherein the projectile includes a density-enhanced ferrotungsten-containing powder formed substantially of ferrotungsten-containing powder having a density greater than 13 g/cc, and wherein less than about 40% of the ferrotungsten-containing powder is −325 mesh by down particles.
Dependencies are inferred from the claim text.