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Zn/ZnO晶枝的制备与生长机制研究 被引量：1

Research on Synthesis and Growth Mechanisms for the Zn/ZnO Dendritic Structure
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摘要 通过在管式炉中加热蒸发Zn粉的方法获得了具有层状结构的Zn晶枝沉积物,构成沉积物的子分枝也具有相同的结构和形状,每个亚微米尺寸的子分枝是由无数个规则的六角形纳米盘构成,这些纳米盘沿着三个晶轴方向蔓延生长,并且连接在一起形成了晶枝的主干和分枝。在氧气氛下退火,通过热氧化的方法形成了Zn/ZnO的核壳结构。所生长晶枝的形态不仅由结晶学和热力学性质所决定,也涉及到晶体生长的动力学,是热量和质量传输共同影响的结果。晶枝的生长是一个凝固潜热释放的过程,本文研究了Zn的晶枝生长以及ZnO螺旋位错的成核与生长机制。 The multi-layers zinc dendritic structures have been synthesized by heating the Zn powder in tube furnace.The sub-structure of the deposition has the similar form.Each sub-structure is formed by many regular hexagonal nano-disc which has grown along the three crystal axis.The Zn/ZnO core-shell structure has obtained by the annealing process under oxygen ambient.The formation of the dendritic structures is decided by not only the characteristics of crystal growth kinetics,but also the het and mass transfer.The dendritic structures growth is a process of solidification heat releasing.
作者 臧春雨 臧春和 李毅 万玉春 葛济铭
机构地区 长春理工大学材料科学与工程学院 洛阳理工学院
出处 《长春理工大学学报（自然科学版）》 2013年第3期114-116,共3页 Journal of Changchun University of Science and Technology(Natural Science Edition)
基金 长春市科技支撑计划项目(2011KZ44) 吉林省教育厅科技研究项目(2008-295)
关键词 氧化锌 晶枝结构 生长机制 Zinc oxide crystal dendrite structure growth mechanism
分类号 O611.62 [理学—无机化学]
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参考文献10

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同被引文献15

  • 1Tong Y H, Liu Y G, Dong L,et al. Growth of ZnO nano- structures with different morphologies by using hydrother- m,,d technique [ J ]. Plays Chem B, 2006, 110: 20263- 20267.
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  • 10郑燕青,李云飞,李文军,王步国,施尔畏.水热法制备氧化锌陶瓷粉体中的形态调制[J].硅酸盐通报,1998,17(5):4-7. 被引量：12

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长春理工大学学报（自然科学版）
2013年 第3期

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