種々の 2 元系, 3 元系液体酸化物中の酸素の拡散

概要

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The oxygen diffusion coefficients in various liquid oxide melts have been measured from the EMF measurement on oxygen concentration cells with solid or liquid electrolytes. This method can determine the diffusion coefficient without the solubility data of oxygen in liquid. The liquid solutions, without transition metal oxides, having compositions of Na_2O-GeO_2, PbO-SiO_2, PbO-GeO_2, and CaO-SiO_2-Al_2O_3, were studied at 1000 to 1450℃. The liquid solutions, with transition metal oxide, having compositions of FeO-PbO-SiO_2 and V_2O_5-PbO were studied at 800 to 1300℃. It was discussed that the diffusion rate of oxygen in a liquid oxide system without a transition metal was determined by the diffusion rate of diatomic oxygen dissolved in the liquid oxides, and that the diffusion mechanism of oxygen in a liquid oxide system with a transition metal oxide could be explained by the quasilattice defects model.
社団法人日本鉄鋼協会の論文
1973-05-01