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A new metal nitride

By Chemical Engineering |

Using a diamond anvil cell to create high (up to 50 GPa) pressures, and a laser to create high (up to 2,000 K) temperatures, researchers from Lawrence Livermore National Laboratory (LLNL; Calif.; edlinks.chemengonline.com/5828-543), the Carnegie Inst. of Washington, and the Atomic Weapons Establishment (Aldermaston, England) have created the first bulk nitride of the nobel metal iridium. The group also was able to determine the structure of, and measure the bulk modulus of the known nitride of platinum. The creation of these “super hard” materials, which may be more durable than titanium nitride, may be useful in semiconductor, superconductor and corrosion-resistance devices, says LLNL. Titanium nitride is already used in the semiconductor industry because of its strength and durability.
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