Investigation of phase formation of RFe11V1-xTix (R = Pr, Ce) compounds

Phase formation of PrFe11V1 − xTix and CeFe11V1 − xTix compounds with the ThMn12-type structure has been investigated by x-ray diffraction (XRD), differential thermal analysis (DTA) and ac initial susceptibility. The stable temperature range of the 1-12 phase for PrFe11V1 − xTix alloys has been cons...

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Bibliographic Details
Published in:Journal of materials science 2000-05, Vol.35 (9), p.2241-2244
Main Authors: TANG, S. L, LUI, L. Y, JIN, Z. Q, ZHANG, J. R, ZHANG, S. Y, DU, Y. W
Format: Article
Language:English
Subjects:
Alloys
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Curie temperature
Differential thermal analysis
Exact sciences and technology
Lattice parameters
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Materials science
Metals. Metallurgy
Physics
Saturation moments and magnetic susceptibilities
Structure of solids and liquids
crystallography
Structure of specific crystalline solids
Titanium
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Summary:Phase formation of PrFe11V1 − xTix and CeFe11V1 − xTix compounds with the ThMn12-type structure has been investigated by x-ray diffraction (XRD), differential thermal analysis (DTA) and ac initial susceptibility. The stable temperature range of the 1-12 phase for PrFe11V1 − xTix alloys has been constructed as a function of Ti content. It is found that the PrFe11V compound with the ThMn12-type structure do not form. The PrFe11Ti compound with the ThMn12-type structure can only be obtained by annealing at a narrow temperature range between 1030 °C and 1113 °C. Furthermore, 1-12 phase can be obtained at lower temperature and wider temperature range with decreasing Ti content x(0.2 ≤ x ≤ 1). The CeFe11V and CeFe11Ti compound with ThMn12-type structure can be synthesized, and it is more favorable to synthesis the 1-12 single phase for the pseudotenary CeFe11V1 − xTix compounds. For PrFe11V1 − xTix compounds with x = 0.2–1, the lattice parameters a and c do not vary very much: around 0.860 and 0.479 nm, and Curie temperature Tc is 268 °C–329 °C. For CeFe11V1 − xTix compounds the lattice parameters a and c are around 0.857 and 0.478 nm, and Curie temperature Tc is 211 °C–252 °C.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1004726926274