Papp, John F.


Conflict minerals from the Democratic Republic of the Congo: global tantalum processing plants, a critical part of the tantalum supply chain

Sources are discussed to identify risks to the United States associated with critical supply of this strategic mineral / metal and to provide supply chain transparency to policymakers. Focus is on the post-mining, pre-consumer-product part of the chain.

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Niobium and tantalum: indispensable twins

Explains how we use these chemical elements, where they come from, and characteristics of the global supply and demand for them.

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Shift in Global Tantalum Mine Production, 2000–2014

<h1>Introduction</h1> Tantalum has a unique set of properties that make it useful in a number of diverse applications. The ability of the metal to store and release electrical energy makes it ideally suited for use in certain types of capacitors that are

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An exploration in mineral supply chain mapping using tantalum as an example

Investigates the complexity of mineral and metal supply chains in general and shows how they can be mapped. A supply chain is made up of all the manufacturers, suppliers, and information networks supplying materials and parts for production.

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Niobium and Tantalum

Niobium and tantalum are found together in nature because they have similar physical and chemical properties. Niobium is used in high-strength steel alloys, while tantalum is used in electronic capacitors.

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