STUDIES ON CALIFORNIUM METAL SYSTEM
STUDIES ON CALIFORNIUM METAL SYSTEM
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DOI：
10.1016/0020-1650(76)80122-5
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发表时间：
1976-01-01
期刊：
影响因子：
--
通讯作者：
ASPREY, LB
中科院分区：
文献类型：
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作者：
HAIRE, RG;ASPREY, LB
[EN]据指出，通过锂(或钡)金属在高温下还原卤化物，通过真空蒸馏除去多余的还原剂和卤化锂，通过两种方法来制备超钚金属；或(2)用钍或镧金属还原氧化物，并蒸馏和冷凝鳗系金属。每种方法都有优缺点。本文以La金属为还原剂，以亚毫克量的高纯Cf_2O_3为原料，采用蒸馏技术制备了多微克量的Cf金属镀层，并用标准粉末法进行了X射线衍射分析，给出了研究结果。
[en] It is stated that the preparation of the transplutonium metals through californium has been carried out by two methods:(I) the reduction of a halide with lithium (or barium) metal at elevated temperatures, removing the excess reductant and lithium halide by vacuum distillation; or (II) reducing the oxide with thorium or lanthanum metal and distilling and condensing the actinide metal. Each approach has advantages and disadvantages. In the present work, multimicrogram amounts of 249 Cf metal were prepared by the distillation technique, using La metal as the reductant and submilligram quantities of high-purity Cf 2 O 3. The resulting Cf metal deposits were analyzed by X-ray diffraction using standard powder methods, and the results of these studies are presented.(UK)