발간논문

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Vol.28, No.1, 83 ~ 87, 1990
Title
Study on the Equilibrium Phase Diagram of the System Na3AlF6 - Nio by Differential thermal analysis
이인규In Kyu Lee, 서길원Gill Won Suh, 백영현Young Hyun Paik
Abstract
A partial binary phase diagram of the system Na₃AlF_6-NiO was investigated by means of Differential Thermal Analysis (DTA) to obtain informations on the feasibility of utilizing cryolite as a metal refining flux. Meanwhile, the X-ray powder diffraction techniques were employed to indentify solid solubilites near end compositions. The DTA heating rate and the sample weight for the experiment were, 5℃/min and 10 ㎎, respectively. Experimental results thus obtained showed that the system of Na₃AlF_6-NiO is a simple eutectic over the range studied(0-30㏖% NiO) with the eutectic point at 6㏖% NiO and 1236 K.
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