| 31. | It can be used alone or in a sintered mixture of hafnium and boron carbide powders.
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| 32. | SHRIMP-I also pioneered ion microprobe studies of titanium, hafnium and sulfur isotopic systems.
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| 33. | Hafnium, one of the last stable elements to be discovered, presents an interesting case.
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| 34. | Some superalloys used for special applications contain hafnium in combination with niobium, titanium, or tungsten.
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| 35. | At levels of 50 mg / m 3, hafnium is immediately dangerous to life and health.
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| 36. | For the fluoride complexes, zirconium and hafnium tend to form hepta-and octa-complexes.
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| 37. | Zirconium and hafnium therefore have very similar chemical behaviour, having closely similar radii and electron configurations.
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| 38. | For example, ferrocene is alkylated with allyldimethylchlorosilane more efficiently using hafnium chloride relative to aluminium trichloride.
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| 39. | The addition of silicon to hafnium oxide increases the band gap, while decreasing the dielectric constant.
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| 40. | Nitrogen is sometimes added to hafnium silicate for improving the thermal stability and electrical properties of devices.
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