Tantalum - MMTA
Tantalum was reported as a new metal in 1802 by the Swedish chemist Anders Gustav Ekeberg, who was Professor of Chemistry at Uppsala University. However, when William Wollaston, the eminent British chemist, analysed minerals from which it had been extracted, he declared it was indentical to the new metal niobium which had been discovered the previous year.
Tantalum and Niobium Powders | Products | JX Nippon Mining ...
Tantalum and niobium are refractory metals with melting points of 3,017°C and 2,477°C. They are excellent materials for capacitor anodes as they form an extremely thin but dense oxide layer as dielectric. High-speed data processing in leading-edge semiconductors is made possible by using copper in semiconductors. To prevent copper from ...
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