Branched morphology of Nb powder particles fabricated by calciothermic reduction in CaCl2 melt
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In this paper, a new branched morphology of metallic niobium powder particles was produced by calciothermic reduction of Niobium oxides in molten CaCl2.About:
This article is published in Journal of Physics and Chemistry of Solids.The article was published on 2017-11-01 and is currently open access. It has received 2 citations till now. The article focuses on the topics: Niobium oxide & Particle.read more
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Extractive metallurgy of niobium
C. K. Gupta,A. K. Suri +1 more
TL;DR: In this paper, Niobium properties and applications are discussed and a classification of Purification Techniques, Classification of purification techniques, Pyrovacuum Treatment, Electrorefining, Iodide Refining, Zone Refining and Chemical Gettering are presented.
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Calcium-deoxidation of niobium and titanium in Ca-saturated CaCl2 molten salt
TL;DR: In this article, the residual resistivity ratio (RRR) of Niobium was evaluated under Ca-halide flux deoxidation using Ca-saturated but CaO-unsaturated CaCl2 melt, and the activity of CaO in the salt was evaluated at 1273 K using the equilibrium oxygen concentration in Ti.
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Production of niobium powder by electronically mediated reaction (EMR) using calcium as a reductant
TL;DR: In this paper, an electronically mediated reaction (EMR) route for the production of niobium powder using calcium as a reductant for Niobium oxide (Nb2O5) was investigated.
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Tantalum and niobium powder preparation from their oxides by calciothermic reduction in the molten CaCl2
TL;DR: In this paper, the fine powder preparation for the larger capacitance of condensers is proposed aiming at the fine-powder preparation for condenser's capacitance, which can be obtained after an hour at 1173 K. In the prolonged time the particles sintered together, but oxygen was gradually removed to the level of a few thousands ppm.