氟化物熔盐共电沉积制备Gd-Mg中间合金研究 - 昆明理工大学学报.PDF

35 2 () http: / /www. kustjourna.l com / o.l 35 No2 20104 Journal ofKunm ingUniversity of Science andTechnology ( Science andTechnology) Apr. 2010 do:i 10. 3969/j. issn. 1007- 855x. 2010. 02. 004 Gd- M g 彭光怀, 郭雪锋, 邱承洲, 韩宝军, 方 玲, 张小联 ( , 341000) : 以混合Gd O -MgO为原料, 在 GdF - LiF- BaF - CaF 氟化物熔盐体系中研究一步法 2 3 3 2 2 共电沉积制备了 Gd-Mg中间合金, 探讨了电 质成分原料Gd O -MgO 中Gd/(Gd+Mg)电 2 3 温度等对电流效率的影响.研究表明, 共电沉积得 Gd- Mg中间合金以GdMg相存在, 成分均 匀; 随电 质成分 GdF 含量原料Gd O -MgO 中Gd/(Gd+ Mg)电 温度电流密度的提高, 3 2 3 电流效率均先升后降; 当电 质 GdF 含量为 85wt%原料 Gd O - MgO 中 Gd/(Gd+ Mg)为 3 2 3 3 86wt%电 温度为 1050 体电流密度 010A /cm 时, 电流效率最高达到 80%. : 氟化物熔盐; 共电沉积; 电流效率; Gd-Mg 中间合金 : O646. 541 : A : 1007- 855X(2010) 02- 0016- 04 Preparation of Gd-M gM aster Allo b Co- electrodepositionM ethod in FluorideM olten Salt PENG G uang-hua ,i GUO X ue-feng, Q IU C heng-z hou, HA N Bao-jun, FA NG L ing, ZHA NG X iao-lai n ( SchoolofChem isty and L ife Science, Gannan NormalUniversity, Ganzhou, Jiangxi341000, China) Abstract: W ithm ixed Gd O -MgO as raw materials, thepreparation ofGd-Mg master alloy by direct co- elec- 2 3 trodeposition inGdF - LiF- BaF - CaF fluoridemolten salt system is studied. The effects of electrolyte compos-i 3 2 2 tion, Gd/(Gd+Mg) ofblended stock, electrolysis temperature and currentdensity on current efficiency