A novel route for the synthesis of CaF2-coated SmCo5 flakes

作者：Zheng Liyun^*; Cui Baozhi; Zhao Lixin; Li Wanfeng; Hadjipanayis George C

来源：Journal of Alloys and Compounds, 2013, 549: 22-25.

DOI：10.1016/j.jallcom.2012.08.057

• Coating materials
• Crystal structure
• Magnetic measurements

CaF2-coated single-crystal and textured polycrystalline flakes have been synthesized by a solid surfactant-assisted high energy ball milling (HEBM), which is totally different from the traditional liquid surfactant-assisted HEBM. The results show that as-milled SmCo5 specimens were crystallographically anisotropic and coated very well with CaF2. Single-crystal SmCo5 flakes with a thickness of 150-700 nm were formed after HEBM for 2 h with 40 wt.% CaF2. After HEBM for 5 h, [001] textured poly-nanocrystalline SmCo5 flakes were mainly formed. The c-axes of most of the grains is perpendicular to the flake surface. The texture intensities reduced with either increasing the milling time or reducing the amount of CaF2.

• 出版日期2013-2-5
• 单位河北工程大学