Effect of the conditions of sintering of sodium-reduced tantalum powders on their characteristics

Abstract

The effect of the granulation and heat treatment of sodium reduced tantalum powders with a spe cific surface area of 2.5-3.6 m 2 /g on the bulk density, the powder flow time, and the specific surface area of the powders and the specific capacitance of the anodes made of them is studied. It is shown that heat treat ment of a granulated powder in vacuum at 1100°C or in a mixture with magnesium at 800°C makes it possible to achieve the required powder flow time.

Computational Assignment of Tantalum-related Strong Absorption Peaks in the Infrared Spectrum of Potassium Heptafluorotantalate

“…Thermal reduction − and molten-salt electrodeposition from molten salt , are the two main methods used to separate Ta from other compounds. Thermal reduction involves the frequent use of heat, oxygen reduction, and other high-temperature treatments during production and application processes, resulting in significant energy usage.…”