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hafnium |
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hafnium /haf·ni·um/ (Hf) (haf´ne-um) chemical element, at. no. 72.
hafnium a chemical element, atomic number 72, atomic weight 178.49, symbol Hf. See Table 6. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The company replaced the usual silicon dioxide in the transistor gate dielectric with nitrided hafnium silicate (HfSiON), a high dielectric constant (high-k) material, and confirmed its performance. This process led to the quick discovery of the new amide-ether based hafnium catalysts; "Single-site, non-metallocene catalysts is a developing area and one that holds great promise for polyolefins research and development. Hafnium and tungsten have distinctive locations in early Earth, says Thorsten Kleine of the University of Munster in Germany. |
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hafnium