Word: alloys
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Dates: during 1960-1969
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...liquid lithium flows through the hot reactor core and emerges at 2,000° F. The tubes that carry it, made of zirconium-columbium alloy, run at near white heat. The lithium is piped through a heat exchanger and turns liquid potassium (boiling point, 1,400° F.) to high-pressure gas that runs a turbine producing 300 kw. to 1,000 kw. of electricity. The potassium gas goes to a wide, flat condenser to be turned back into a liquid (see diagram...
...hardly have been possible." ∙SUPERCONDUCTORS. "Until very recently, the phenomenon of metals losing their resistance to the passage of electrical current at temperatures near absolute zero-the phenomenon of superconductivity-was an academic subject, pursued almost entirely in university research laboratories. The Bell Telephone Laboratories discovered that an alloy of tin and niobium remains superconducting in strong magnetic fields.'' And it is in just such extremely strong magnetic fields that scientists need to conduct sophisticated experiments in controlled nuclear fusion...
...battery, cast in epoxy resin and encased in a double coating of silicone rubber. The instrument uses the timing effect of electrical surges in a closed circuit to measure off 60 beats a minute. To carry the impulses to the heart, Dr. Chardack uses two springs of platinum-iridium alloy, attached to the heart muscle...
...enhance his company's reputation by intensifying research into atom-age metals. The new emphasis has already produced an important breakthrough in fabrication of superconductors i.e., metals which when chilled to absolute zero lose their resistance to electricity. Wah Chang labs are now making colum-bium-zirconium alloy wire that scientists believe can be used to utilize the energy released by controlled nuclear fission...
...atom smasher, operating at temperatures close to absolute zero (-460° F.), may be smaller and cheaper to build, and could operate on far less electrical power than conventional electromagnetic accelerators, said Midwestern Universities Research Association Physicist Dr. Cyril D. Curtis. By using such superconductive materials as niobium-tin alloy (TIME, March 3) instead of huge iron magnets, atom smashers now 1,200 ft. in diameter might be reduced to less than 550 ft., and construction and operation costs could be cut by 35%. Curtis' projection was underscored at the same A.P.S. session when Brookhaven National Laboratory...