AbstractThe saturation solubilities of nickel and manganese in Pb17Li have been measured over the temperature range of interest for the use of Pb17Li as a coolant and tritium breeder in fusion reactors. Nickel was found to have a particularly high solubility in Pb17Li as given by the equation: Log10S(wppm) = 4.832−981.2/T(K) for T = 520−728 K. The solubility of nickel in pure lead was also determined and found to be in good agreement with literature data. The solubility of manganese was found to be much lower than that of nickel in Pb17Li and is given by the equation: Log10s(wppm) = 6.732−2938/T(k) for T = 531−783 K. The solubility of chronium was found to be very low and the data subject to too much scatter to be fitted to a sensible equation. The possibility of interference by oxygen dissolved in the Pb17Li is discussed. Equilibration measurements of the dissolution of Ni, Cr, Mn and Fe from Type 316 stainless steel are also described.
Pb‒17Li中のニッケルおよびマンガンの飽和溶解度を、Pb‒17Liを核融合炉の冷却材およびトリチウム増殖材として使用する際に関心のある温度範囲にわたって測定した。ニッケルはPb‒17Li中で特に高い溶解度を示し、その溶解度は次式で与えられる：Log₁₀S(wppm) = 4.832 − 981.2/T(K)（T = 520〜728 K）。純鉛中のニッケルの溶解度も測定し、文献データと良好な一致を示した。マンガンの溶解度はニッケルよりもはるかに低く、次式で与えられる：Log₁₀S(wppm) = 6.732 − 2938/T(K)（T = 531〜783 K）。クロムの溶解度は非常に低く、データのばらつきが大きいため、妥当な式への適合は不可能であった。Pb‒17Li中に溶解した酸素による干渉の可能性について考察した。さらに、Type 316ステンレス鋼からのNi、Cr、Mn、Feの溶出に関する平衡測定についても記載した。