Word: columbium
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...ordered that all columbium stainless steel, a tough alloy, be channeled into defense orders. Columbium* alloys are needed for jet engines...
...Union Carbide and Carbon Corp. is the main U.S. commercial supplier of columbium. For months all its production has been going for defense needs...
Last fortnight Dr. Donald H. Andrews of Johns Hopkins University described a bolometer to top them all. Its sensitive surface is columbium nitride cooled by liquid hydrogen to minus 432° F. At this temperature-close to absolute zero-columbium nitride becomes "superconductive"; its electrical resistance almost vanishes. When a heat ray hits it and warms it only one millionth of a degree, it gives a clear electrical signal...
...furnace, such metals as vanadium, titanium, columbium, zirconium, and the platinum group, which have been difficult to study because of their very high melting points, can be melted into very pure alloys. Then, through X-ray photographs, significant students can be made of the individual peculiarities of molecular structure and other physical characteristics...