Effects of gelation and sintering conditions on granulation of Li2TiO3 pebbles from Li–Ti complex solution
Effects of gelation and sintering conditions on granulation of Li2TiO3 pebbles from Li–Ti complex solution
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DOI：
10.1016/j.fusengdes.2005.06.063
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发表时间：
2005-11
期刊：
影响因子：
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通讯作者：
K. Tsuchiya;H. Kawamura;S. Casadio;C. Alvani
中科院分区：
文献类型：
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作者：
K. Tsuchiya;H. Kawamura;S. Casadio;C. Alvani
在日本和欧洲的聚变堆包层设计中，提出了Li2TiO3卵石的应用。湿法和直接溶胶凝胶法从低成本的批量生产、含锂溶液的后处理和放射性同位素的去除方面是最有优势的。以前，目标密度(80-85%T.D.)在初步的制备试验中，Li2TiO3鹅卵石的颗粒尺寸大于5μm，球形度较低。为此，继续进行了直接湿法制备Li2TiO3卵石的试验，重点研究了Li2TiO3的溶解过程、溶液向凝固剂中的投加以及液滴的干燥/焙烧和烧结过程，以获得高球度的Li2TiO3卵石，减少了Li2TiO3卵石表面的裂纹。
Application of Li2TiO3pebbles was proposed in the Japanese and European blanket design of a fusion reactor. The wet process and direct sol–gel methods are most advantageous from viewpoints of low-cost mass fabrication, reprocessing of lithium-bearing solution and removal of radioactive isotopes. Previously, the target density (80–85% T.D.) of Li2TiO3pebbles was achieved in the preliminary fabrication test; however, the grain size of Li2TiO3pebbles was larger than 5μm and low sphericity. Therefore, the fabrication tests of Li2TiO3pebbles by the direct-wet process were continued, focusing the effects on dissolving process of Li2TiO3, dropping of the solution into coagulant and drying/calcinating and sintering processes of the droplet for high sphericity and decreasing the cracks of Li2TiO3pebble surface.