### Abstract

Measurements of the structure, magnetic properties, and magnetostriction were made on arc-melted polycrystalline (Tb0.7 Dy0.3)0.7Pr0.3(Fe1-xCo x)1.85 (0⩽×⩽0.6) alloys by X-ray diffraction, initial susceptibility, vibrating sample magnetometry, and standard strain gauge techniques. The measurements showed that the matrix of (Tb0.7Dy0.3)0.7Pr0.3 (Fe1-xCox)1.85 predominantly consists of the MgCu2-type cubic Laves phase, with a small amount of PuNi3-type and rare-earth rich phases. The amount of (Tb,Dy,Pr)(Fe,Co)2 in (Tb0.7Dy0.3) 0.7Pr0.3(Fe1-xCox)1.85 increases with increasing Co concentration and becomes almost the only phase present when x⩾0.4. The lattice parameter decreases approximately linearly with increasing x from 0.7357 nm when x=0 to 0.7300 nm when x=0.6. The Curie temperature increases with increasing x from 640 K when x=0 to 677 K when x=0.3, and then decreases to 572 K when x=0.6. The saturation magnetization Ms exhibits a minimum near x=0.3. The polycrystalline magnetostriction of (Tb0.7 Dy0.3)0.7Pr0.3(Fe1-xCo x)1.85 decreases monotonically with increasing x. There is no evidence of an anomalously large λ100 value as is the case for other R(Fe1-xCox)2 compounds

Original language | English |
---|---|

Pages (from-to) | 3025-3027 |

Number of pages | 3 |

Journal | IEEE transactions on magnetics |

Volume | 37 |

Issue number | 4 |

DOIs | |

Publication status | Published - 1 Jan 2001 |

## Fingerprint Dive into the research topics of 'Structure, magnetic and magnetostrictive properties of (Tb0.7Dy0.3)0.7Pr0.3(Fe1-xCox)1.83 (0<x<0.6)'. Together they form a unique fingerprint.

## Cite this

Guo, Z. J., Busbridge, S., Wang, B. W., Zhang, Z. D., & Zhao, X. G. (2001). Structure, magnetic and magnetostrictive properties of (Tb0.7Dy0.3)0.7Pr0.3(Fe1-xCox)1.83 (0<x<0.6).

*IEEE transactions on magnetics*,*37*(4), 3025-3027. https://doi.org/10.1109/20.947056