A New York Times News Service article sent on Friday, February 23 about a new superconductor misstated the figure in some copies for the temperatures at which magnesium boride ferries electricity with virtually no resistance.
32.
Crystals of the specific rare-earth boride YB 66 are used as X-ray monochromators for selecting X-rays with certain energies ( in the 1 2 keV range ) out of synchrotron radiation.
33.
It does not form a boride, silicide, or carbide, and the hydride InH 3 has at best a transitory existence in ethereal solutions at low temperatures, being unstable enough to spontaneously polymerize without coordination.
34.
The hardness values depend on the material purity and composition the more boron the harder the boride and the above values are for a Re : B ratio of approximately 1.00 : 1.85.
35.
While other, more complex superconducting materials work at higher temperatures, magnesium boride is relatively inexpensive, raising hopes that it might eventually find applications in magnetic resonance imaging machines, more efficient power transmission lines and other electronic devices.
36.
In case of carbon fibre, it reacts with the aluminum matrix at temperatures above 500 �C; better wetting of the fibre and inhibition of chemical reaction can be achieved by coating it with e . g . titanium boride.
37.
The compound, magnesium boride, known since the 1950s, is commonly used for some chemical reactions, but no one had ever tested whether it would become a superconductor at low temperatures, able to ferry electricity with virtually no resistance.
38.
You could probably find some " boride " s with a nominal-3 oxidation state, but this has little meaning when discussing compounds of this type .-- 32 " "'05 : 13, 27 November 2009 ( UTC)
39.
The enthusiasm about the magnesium boride findings is " less than that, but it's still quite exciting, " said Crabtree, who is organizing a special session on the new superconductors that will be held at the physical society's March meeting in Seattle.
40.
A most critical development was creating a durable mixing tube that could withstand the power of the high-pressure AWJ, and it was Boride Products ( now Kennametal ) development of their ROCTEC line of ceramic tungsten carbide composite tubes that significantly increased the operational life of the AWJ nozzle.
