Anisotropic PrCo $_{5}$ Nanoparticles by Surfactant-Assisted Ball Milling
Anisotropic PrCo $_{5}$ Nanoparticles by Surfactant-Assisted Ball Milling
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DOI：
10.1109/tmag.2009.2022643
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发表时间：
2009-09
影响因子：
2.1
通讯作者：
N. Akdogan;G. Hadjipanayis;D. Sellmyer
中科院分区：
文献类型：
--
作者：
N. Akdogan;G. Hadjipanayis;D. Sellmyer
磁性硬 PrCo5 纳米粒子是通过使用表面活性剂辅助的高能球磨技术生产的。表面活性剂的使用导致破碎的颗粒分散并防止它们在研磨过程中重新焊接。使用庚烷作为研磨介质，油酸作为表面活性剂。使用 Spex 8000 M 高能球磨机在装有钢球的研磨瓶中进行高能球磨实验。发现矫顽力随着铣削时间的增加而增加，铣削 12 小时后矫顽力值为 6.8 kOe。 TEM 数据显示研磨的粉末由平均尺寸为 8-10 nm 的纳米颗粒组成。
Magnetically hard PrCo5 nanoparticles have been produced by using surfactant-assisted high-energy ball milling techniques. The use of surfactant leads to the dispersion of the crashed particles and prevents them from rewelding during the milling process. Heptane was used as the milling medium, and oleic acid as the surfactant. High-energy ball milling experiments took place in a milling vial with steel balls by using a Spex 8000 M high-energy ball milling machine. The coercivity was found to increase with milling time with a value of 6.8 kOe after 12 h of milling. TEM data showed that the milled powders consist of nanoparticles with an average size of 8-10 nm.