Formation of broccoli-like morphology of tantalum powder
Formation of broccoli-like morphology of tantalum powder
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DOI：
10.1016/j.jallcom.2004.08.016
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发表时间：
2005-03
影响因子：
6.2
通讯作者：
R. Suzuki;M. Baba;Y. Ono;Kosuke Yamamoto
中科院分区：
文献类型：
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作者：
R. Suzuki;M. Baba;Y. Ono;Kosuke Yamamoto
在熔融CaCl2中，Ca还原Ta2O5时，Ta粉呈现“花椰菜”状形貌。它由细小的颗粒和树枝组成，与传统的球形颗粒不同。这种形态的形成依赖于起始材料的堆积方法。八种充填方法证明，该分支是在氧化物附近局部产生CaO富集区时形成的。
“Broccoli”-like morphology of Ta powder was found when Ca reduces Ta2O5in the molten CaCl2. It consisted of fine particles and branches, and it was different from the conventional spherical particles. The formation of this morphology depended on the stacking methods of the starting materials. Eight types of filling methods proved that the branch was formed when the CaO-enriched region was locally produced near the oxide.