交流 4 端子法によるフッ化物を含む ESR 用フラックスの電導度の測定

概要

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In order to measure the electrical conductivities of fluoride melts at high temperature, four electrodes method with AC has been developed. Various conditions in measurement of solution resistance were determined by use of potassium chloride aqueous solution at room temperature. The electrical conductivities of pure calcium fluoride and those of commercial fluxes such as ANF-1P, ANF-6 and ANF-7 were measured in the temperature range from 1450 to 1750℃. The results showed that the use of graphite crucible was unfavourable for those melts and the sufficient dehydration of samples and atomospheric argon gas were desirable. The specific conductivities of calcium fluoride melts obtained at the temperatures of 1500, 1600 and 1700℃ were 6.15, 6.40 and 6.60mho/cm, respectively. Those results were compared with that of previous investigations.
社団法人日本鉄鋼協会の論文
1978-02-01