Preparation and properties characterization of the single-phased Sm2Co17, nanocrystalline alloy.
A novel route for the preparation of the single-phased Sm2Co17 nanocrystalline bulk with ultrafine grain sizes was proposed. It was found that the nanocrystalline Sm20Co17 has a hexagonal crystal structure at the room temperature, which shows a different thermal stability from the conventional polycrystalline alloy. The intrinsic coercivity of the nanocrystalline Sm2Co17 with a hexagonal crystal structure was greatly increased as compared with the single-phased polycrystalline alloy with a rhombohedral structure. The microhardness and the elastic modulus of the nanocrystalline Sm2Co17 bulk were increased as high as 1.8 and 2.6 times, respectively, when compared with the polycrystalline parent alloy.
Lu
Nianduan
N
College of Materials Science and Engineering, Key Lab of Advanced Functional Materials, Chinese Education Ministry, Beijing University of Technology, Beijing 100124, China.
Song
Xiaoyan
X
Seyring
Martin
M
Rettenmayr
Markus
M
Zhang
Jiuxing
J