2001 Archive
Dec. '01
A Case for the Role of Copper Deficiency in "Mad-Cow" Disease and Human Creutzfeldt-Jakob Disease
It has recently been suggested that copper also affects a newly identified class of ailments known as prion diseases, particularly the case for scrapie in sheep, bovine spongiform encephalopathy (BSE, or "mad cow disease") in cattle.
Sep. '01
Die-Cast Copper Motor Rotors Heading for Success
A look a the on-going research designed to take advantage of copper's high conductivity in such a way as to enable the creation of ultrahigh-efficiency electric motors being conducted by an industry-government consortium of which the Copper Development Association (CDA) is a member.
Aug. '01
Introduction to Copper: Applications
This article is intended as an introduction to copper, describing the many ways in which the metal is so useful. The article also touches on copper's invaluable contribution to the health of plants, animals and mankind.
Aug. '01
How Hydrometallurgy and the SX/EW Process Made Copper the "Green" Metal
Copper is traditionally known as the "red" metal after its natural color. However, it is also known as a "green" metal for the green patina that it acquires due to weathering. Indeed, patinized copper is the architectural focal point of many modern buildings for its natural look.
Aug. '01
Phelps Dodge Morenci Has Converted All Copper Production to Mine-for-Leach
In early 2001, the Phelps Dodge Mining Company's Morenci, Arizona operations were completely converted from a conventional mining, milling, smelting and refining operation to a system whereby ore will be mined exclusively for leaching.
Jun. '01
Phosphor Bronze: Teaching an Old Dog New Tricks
Just when you think a material has been developed as fully as possible, someone comes along and proves you wrong.
Jun. '01
Copper at the Cutting Edge: The Copper Vapor Laser
Although the copper vapor laser (CVL) has been known for more than 15 years, it is a relative new-comer to the family of engineering lasers. Already the natural choice for precision micromachining, it has just gotten better.
Jun. '01
Maitreya Project: Nickel-Aluminum Bronze Selected for World's Largest Statue
The economic situation in Bihar State, one of the poorest areas in India, will be transformed by plans to construct the world's largest statue there. The Maitreya Project is planning to build a 500-ft (152-m)-tall, 50-story-high bronze statue of the Buddha Maitreya at Bodhgaya in Bihar.
The Latest News
Copper-based Solar Cells:
Good for the Environment, Good for the Consumer
Copper has long been used in solar heating/hot water systems, where it is commonly used in heat exchangers. Now, it promises to become equally valuable in photovoltaic (PV) systems. These systems produce electricity through the action of sunshine on certain semiconductors, including so-called thin-film materials and the currently most promising material: copper indium gallium diselenide or CIGS.
The Presidential Dollars
Golden Collectibles or the Next Coin of the Realm? The U.S. Mint is betting it’s got it right this time. The Mint placed into circulation the first of its new golden dollar coins featuring, for the initial issue, George Washington.
High Strength Copper Steel for Rail Tank Cars to Bridges
This paper shows that the new Copper Steel has advantages over steel presently used in railroad tank cars. The higher strength leads to weight saving; higher impact fracture toughness mitigates against brittle failure particularly at low temperatures. An update of recently completed bridge using the Cu Steel is also provided.
Helpful Hints
Innovations covers technological changes involving copper.
Articles are archived by subject area (see Topics Archives on the left) and by year of publication (see Yearly Archives on the left). You can also search all of the Copper Development Association's Web site by using Search on top right of every page.
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