초록 ▼

A lead free ferromagnetic article is disclosed. The article is a compacted composite having a heavy more dense constituent that is preferably ferrotungsten and a less dense second constituent that is either a metal alloy or a polymer. The ferromagnetic constituent is present in an amount sufficient

A lead free ferromagnetic article is disclosed. The article is a compacted composite having a heavy more dense constituent that is preferably ferrotungsten and a less dense second constituent that is either a metal alloy or a polymer. The ferromagnetic constituent is present in an amount sufficient to impart the article with ferromagnetism. The ferromagnetic property allows fragments of the article, such as a projectile, bullet or shaped charge liner to be separated from dirt or other environments.

대표청구항 ▼

[ What is claimed is:] [1.] A lead-free projectile comprising a sintered compacted composite consisting essentially of:(a) at least 50% by weight ferrotungsten, and(b) a second constituent present in an amount of from 10% to 30% by weight and selected from the group consisting of iron, nickel, and c

[ What is claimed is:] [1.] A lead-free projectile comprising a sintered compacted composite consisting essentially of:(a) at least 50% by weight ferrotungsten, and(b) a second constituent present in an amount of from 10% to 30% by weight and selected from the group consisting of iron, nickel, and cobalt;wherein the projectile has a density of at least 9 grams per cubic centimeter and is sufficiently ferromagnetic to be separated from its environment by magnetic separation techniques.