Lee Ji-Woon, Kim Hyung-Tae, Kim Sang-Wook, Jung Taek-Kyun, Jin Changhyun, Choung Joonmo, Kim Changjae, Chung Soonwan, Hyun Soong-Keun
Department of Materials Science and Engineering, Inha University, Incheon 22212, Republic of Korea.
Department Naval Architecture and Ocean Engineering, Inha University, Incheon 22212, Republic of Korea.
J Nanosci Nanotechnol. 2018 Mar 1;18(3):2227-2230. doi: 10.1166/jnn.2018.14979.
The effect of Zn on pore characteristics in lotus-type porous Cu alloy was investigated. The lotustype porous Cu-Zn alloys were fabricated with Zn content from 0.01 to 0.1 at% by the centrifugal casting method. The results demonstrated that the porosity was rarely affected by Zn content. However, the average pore diameter and pore number density of the lotus type porous Cu-Zn alloys were significantly affected by the Zn content. The average pore diameter decreased as the Zn content increased up to 0.01 at%, and then increased as the Zn content increased up to 0.1 at%. In contrast, the variations in the pore number density of the lotus-type porous Cu-Zn alloys showed the reversed tendency with respect to that of the average pore diameter. The increase in heterogeneous nucleation sites for pores attributed to the decreased average pore diameter and the increased pore number density.
研究了锌对莲花型多孔铜合金孔隙特征的影响。采用离心铸造法制备了锌含量为0.01%至0.1%（原子分数）的莲花型多孔铜锌合金。结果表明，孔隙率很少受锌含量的影响。然而，莲花型多孔铜锌合金的平均孔径和孔数密度受锌含量的影响显著。平均孔径在锌含量增加至0.01%（原子分数）时减小，然后在锌含量增加至0.1%（原子分数）时增大。相反，莲花型多孔铜锌合金的孔数密度变化趋势与平均孔径的变化趋势相反。孔隙异质形核位点的增加归因于平均孔径的减小和孔数密度的增加。
