Tellurium

Name Origin Greek: tellus (the Earth). "Tellurium" in different languages. Sources Obtained as a by-product of copper and lead refining. Also found in the mineral calaverite (AuTe2). Most tellurium is produced in the USA, Canada, Peru and Japan. Annual production is around 220 tons. Uses Used to improve the machining quality of metal products and to colour glass and ceramics. Also used in thermoelectric devices (bismuth telluride (Bi2Te3)), vulcanization of rubber, percussion caps, battery plate protectors and electrical resistors. It is added to lead to improve its strength and durability, and to decrease the corrosive action of sulfuric acid (H2SO4). When added to stainless steel and copper it makes these metals more workable. It is alloyed into cast iron for chill control. When alloyed with both cadmium and mercury, to form mercury cadmium telluride, an infrared sensitive semiconductor material is formed. Tellurium is being used (as GeSbTe, an alloy of germanium, antimony and tellurium) in the new phase change memory chips developed by Intel. Cadmium telluride (CdTe) is used in solar panels. NREL lab tests using this material achieved some of the highest efficiencies for solar cell electric power generation.

Maurizio Ferraro magnetocaloric motor. The engine exploits magnetocaloric properties of metals, and the principle of magnetic refrigeration. MCE The magnetocaloric effect wheel. It heats and cools by passing through a magnetic field. If this wheel then joins one of the many thermal engines to external compression, such as the Stirling engine or a Brayton cycle (already has been said that this wheel uses the Brayton cycle), or others, it is magnetocaloric engine .. with a magnetic field of 5 Tesla is coming to an excursion of 28 degrees Kelvin (-245 ° Celusius). That this "always works" going overunning is not known, but the "Brayton cycle engine" or the "Stirling engine" coupled with a "wheel of Gadolinium" or magnetocaloric alloy, it can become much more efficient .. To know? We must build .. Stirling engine Ferraro: Wheel of Magnetic Refrigeration + Stirling engine = Ferraro magnetocaloric motor (Stirling system) Will it work? To know we must build ... Ferraro magnetocaloric engine (Brayton cycle) This is a "Brayton cycle engine 'hot air', but with the Brayton engine Ferraro ((Magnetocaloric properties) + (heat engine)), we recommend using a "cycle of cold air." Input enters the cooled air through the magnetocaloric properties the "wheel of gadolinium (powered by the engine itself) through a magnetic field. Will it work? To know we must build ... the fluid within the compression chamber (air) can be replaced with other fluids that might enhance performance. Ps: Excuse ...
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