Abstract
The magnetic phase diagram of pseudobinary FCC (Fe1-xNi x)92C8 alloys (0.1<or=x<or=0.4) fabricated by rapid quenching has been investigated by static magnetisation, AC susceptibility and Mossbauer effect. The Pauli-type paramagnetism is found at x=0.1 and the spin glass is at 0.1<x<0.2. At 0.2<or=x<or=0.25 the weak ferromagnet coexists with the paramagnet, showing re-entrant spin-glass behaviour. The Fe magnetic moment gradually increases with increasing x from x=0.2, and reaches 2.8 mu B (or 2.1 mu B for Fe with the first neighbouring carbon) in the strong ferromagnet at x>or=0.25. The onset of ferromagnetism is discussed in connection with the lattice expansion due to an interstitial carbon and with the effective charge transfer from C to Fe. The magnetic phase diagram as well as the dependence of Fe magnetic moment on x is explained by the environmental effect.
Original language | English |
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Article number | 022 |
Pages (from-to) | 1093-1105 |
Number of pages | 13 |
Journal | Journal of Physics F: Metal Physics |
Volume | 16 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1986 Dec 1 |
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy (miscellaneous)
- Metals and Alloys