So the challenge, said The Times, is to ascertain how much of that tantalum comes from Rwanda, and how much from "conflict-ridden mining" in the DRC. Tin and tungsten are also abundant in the ...

A nanostructured copper alloy, Cu-Ta-Li (Copper-Tantalum-Lithium), could be a groundbreaking new high-temperature material for aerospace, defense, and industrial applications, combining properties of ...

Tantalum is a metal in group VB of the periodic table with atomic number 73, an atomic weight of 180.95, and a density of 16.6 Mg/m 3. Its melting point is 2996 C, and it boils at 5425 C. In the solid ...

In this class, users will learn about iron-based, nickel-based, and cobalt-based superalloys, as well as tungsten, vanadium, tantalum, and other exotic metals. Superalloys and exotic metals have ...

Nyakabingo mine produces 120 tonnes of wolframite per month, operated by Trinity Metals, a mining company primarily focusing on extracting tin, tungsten, and tantalum in Rwanda, formed by merging ...

(Bloomberg) -- The Democratic Republic of Congo filed lawsuits against Apple Inc. in France and Belgium accusing the company ...