Method for manufacturing tungsten-based materials and articles by mechanical alloying
OwnerDarryl Dean Amickinventor
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Abstract
A method of producing a high-density article is presented comprising selecting one or more primary tungsten-containing constituents with densities greater than 10.0 g/cc and one or more secondary constituents with densities less than 10.0 g/cc, co-milling the mixture of constituents in a high-energy mill to obtain mechanical alloying effects, then processing the resulting powder product by conventional powder metallurgy to produce an article with bulk density greater than 9.0 g/cc.
Claims10
A method for producing a high-density articles with bulk density greater than 9.0 grams per cubic centimeter, the method comprising:
- selecting one or more primary tungsten-containing constituents with densities greater than 10.0 grams per cubic centimeter and one or more secondary constituents with densities less than 9.0 grams per cubic centimeter;
- co-milling the mixture of constituents in a high-energy mill to obtain mechanical alloying effects;
- and
- processing the resulting powder product by conventional powder metallurgy to produce said high-energy article with bulk density greater than 9.0 grams per cubic centimeter,
- wherein said primary tungsten-containing constituent is ferrotungsten and said secondary constituent is zinc.
A method for producing a high-density articles with bulk density greater than 9.0 grams per cubic centimeter, the method comprising:
- selecting one or more primary tungsten-containing constituents with densities greater than 10.0 grams per cubic centimeter and one or more secondary constituents with densities less than 9.0 grams per cubic centimeter;
- co-milling the mixture of constituents in a high-energy mill to obtain mechanical alloying effects;
- and
- processing the resulting powder product by conventional powder metallurgy to produce said high-energy article with bulk density greater than 9.0 grams per cubic centimeter,
- wherein said primary tungsten-containing constituent is ferrotungsten and said secondary constituent is tin.
A method for producing a high-density articles with bulk density greater than 9.0 grams per cubic centimeter, the method comprising:
- selecting one or more primary tungsten-containing constituents with densities greater than 10.0 grams per cubic centimeter and one or more secondary constituents with densities less than 9.0 grams per cubic centimeter;
- co-milling the mixture of constituents in a high-energy mill to obtain mechanical alloying effects;
- and
- processing the resulting powder product by conventional powder metallurgy to produce said high-energy article with bulk density greater than 9.0 grams per cubic centimeter,
- wherein said primary tungsten-containing constituent is ferrotungsten and said secondary constituent is nickel.
A method for producing a high-density article with bulk density greater than 9.0 grams per cubic centimeter comprising selecting one or more primary tungsten-containing constituents with densities greater than 10.0 grams per cubic centimeter and one or more secondary constituents with densities less than 10.0 grams per cubic centimeter, co-milling the mixture of constituents in a high-energy mill to obtain mechanical alloying effects, combining at least 10% by weight of said mixture as a binder with conventional metallic granules or powders, then employing conventional powder metallurgy processing to produce said high-density article.
A method for producing a high-density article with bulk density greater than 9.0 grams per cubic centimeter comprising selecting one or more primary tungsten-containing constituents from the group consisting of tungsten, ferrotungsten, tungsten-carbide and other tungsten alloys and compounds, selecting one or more secondary constituents from the group consisting of aluminum, zinc, tin, nickel, copper, iron and bismuth, and their alloys, co-milling the mixture of constituents in a high-energy mill to obtain mechanical alloying effects, combining at least 10% by weight of said mixture as a binder with conventional metallic granules or powders then employing conventional powder metallurgy processing to produce said high-density article.
Dependencies are inferred from the claim text.