|
|||||
|
|
Structure and magnetostrictive properties of melt-spun Pr(Fe0.4Co0.6)1.93 alloys |
|
| Authors: | J.J. Liu X.C. Liu P.Z. Si |
| Affiliation: | a State Key Laboratory Base of Novel Functional Materials and Preparation Science, Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China b Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China c College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China |
| Abstract: | Pr(Fe0.4Co0.6)1.93 ribbons were prepared by a melt-spinning method. Their structure and magnetic properties are investigated as functions of wheel speed and annealing temperature. The as-spun ribbon consists of a Pr(Fe, Co)2 cubic Laves phase and an amorphous phase at a wheel speed of v≥35 m/s, while the non-cubic phases of PuNi3-type and rare earth appear when the speed lower than 30 m/s. A single Pr(Fe, Co)2 phase with MgCu2-type structure has been synthesized by the process for the wheel speed of v≥35 m/s and subsequent annealing at 500 °C for 30 min. The epoxy/Pr(Fe0.4Co0.6)1.93 composite has been produced by a cold isostatic pressing technique, and the magnetic properties have been investigated. The composite rod sample possesses good magnetostrictive properties, i.e., a large magnetostriction (λa=λ∥−λ⊥) of 710 ppm at 800 kA/m and a dynamic coefficient d33 of 0.67 nm/A at 100 kA/m, and is of practical value. |
| Keywords: | 75.80.+q 74.25.Ha 74.62.Bf |
| 本文献已被 ScienceDirect 等数据库收录！ | |