Niobium is a metal in groupVB of the periodic table with atomic number 41, an atomic weight of 92.91, and a density of 8.4 Mg/m 3. Its melting point is 2468 C, and it boils at 3300 C. The electronic ...

THE phase diagram of the niobium–silicon system has been established by melting-point determinations, X-ray examination and metallography, and is shown in Fig. 1. Alloys were prepared in the ...

CBMM has a mine with over 800 million tons of niobium reserves and holds 82% of the world niobium market share. A consortium of five Chinese companies has acquired a 15% stake in Brazil's ...

Globe Metals & Mining is close to finalising full offtake arrangements for stage one of its Kanyika development in Malawi, bringing the first new niobium development in more than 50 years closer ...