Directionally solidified thin‐film eutectic alloys
Directionally solidified thin‐film eutectic alloys
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定向凝固薄膜共晶合金
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
H. Cline
中科院分区：
文献类型：
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作者：
H. Cline
一个自然的，亚微米尺寸的周期性结构，通过定向凝固的铅锡共晶薄膜。在玻璃上沉积1至8 μm厚的Eu 3+合金膜，并以0.5至12.6 mm/min的速率定向凝固，产生无缺陷的层状结构。观察到一种机制，涉及弯曲板的传播，以调整间距，而不形成故障。低于与周期性间距相当的临界厚度，观察到结构变得不规则。讨论了层状共晶薄膜的间距控制和稳定性。
A natural, submicron‐size periodic structure was fabricated by directional solidification of Pb‐Sn eutectic thin films. Eutectic alloy films between 1 and 8 μm thick were deposited on glass and directionally solidified at rates between 0.5 and 12.6 mm/min that yielded fault‐free lamellar structures. A mechanism that involves the propagation of bent plates was observed to adjust the spacing without forming faults. Below a critical thickness comparable to the periodic spacing, the structure was observed to become irregular. The spacing control and stability of the lamellar eutectic thin films are discussed.