Comparative study on size dependence of melting temperatures of pure metal and alloy nanoparticles
Comparative study on size dependence of melting temperatures of pure metal and alloy nanoparticles
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DOI：
10.1063/1.3607957
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发表时间：
2011-07
影响因子：
4
通讯作者：
Cheng Chen;J. Lee;K. Arakawa;H. Mori
中科院分区：
文献类型：
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作者：
Cheng Chen;J. Lee;K. Arakawa;H. Mori
对纯金属和合金纳米颗粒的熔化温度的尺寸依赖性进行了比较研究。结果表明，Bi-Sn、In-Sn和Pb-Sn合金纳米颗粒的熔化温度随颗粒尺寸的减小而降低的速度比组分金属纳米颗粒（Bi、In、Pb、Sn）的熔化温度降低的速度快。也就是说，合金纳米颗粒的熔化温度对尺寸的依赖性比组成金属纳米颗粒的更强。用热力学模型计算的结果与实验结果符合得很好。
A comparative study on the size dependence of the melting temperatures of pure metal and alloy nanoparticles has been carried out. It was found that the melting temperatures of Bi-Sn, In-Sn, and Pb-Sn alloy nanoparticles decreased more rapidly with decreasing particle size than those of the constituent metal nanoparticles (Bi, In, Pb, Sn). Namely, the size dependence of the melting temperature was stronger for the alloy nanoparticles than that for the constituent metal nanoparticles. Results calculated with a thermodynamic model were in good agreement with the experimental observations.