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Titolo:
Structure and magnetic and magnetostrictive properties of (Tb0.7Dy0.3) Pr-0.7(0.3) (Fe1-xCox) (1.85) (0 <= x <= 0.6)
Autore:
Guo, ZJ; Busbridge, SC; Wang, BW; Zhang, ZD; Zhao, XG;
Indirizzi:
Acad Sinica, Inst Met Res, Shenyang 110015, Peoples R China Acad Sinica Shenyang Peoples R China 110015 yang 110015, Peoples R China Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China Acad Sinica Shenyang Peoples R China 110015 yang 110015, Peoples R China Univ Brighton, Sch Engn, Brighton BN2 4GJ, E Sussex, England Univ Brighton Brighton E Sussex England BN2 4GJ N2 4GJ, E Sussex, England
Titolo Testata:
IEEE TRANSACTIONS ON MAGNETICS
fascicolo: 4, volume: 37, anno: 2001,
parte:, 2
pagine: 3025 - 3027
SICI:
0018-9464(200107)37:4<3025:SAMAMP>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
ALLOYS; CO;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Guo, ZJ Acad Sinica, Inst Met Res, Shenyang 110015, Peoples R China Acad Sinica Shenyang Peoples R China 110015 015, Peoples R China
Citazione:
Z.J. Guo et al., "Structure and magnetic and magnetostrictive properties of (Tb0.7Dy0.3) Pr-0.7(0.3) (Fe1-xCox) (1.85) (0 <= x <= 0.6)", IEEE MAGNET, 37(4), 2001, pp. 3025-3027

Abstract

Measurements of the structure, magnetic properties, and magnetostriction were made on are-melted polycrystalline (Tb0.7Dy0.3)(0.7)TPr0.3(Fe1-xCox)1.135 (0 less than or equal to x less than or equal to 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)(0.7)Pr-0.3(Fe1-xCox)(1.85) predominantly consists of the MgCu2-type cubic Laves phase, with a small amount of PuNi3-type and rare-earth richphases. The amount of (Tb, Dy, Pr)(Fe, Co)(2) in (Tb0.7Dy0.3)(0.7)Pr-0.3(Fe1-xCox)(1.85) increases with increasing Co concentration and becomes almost the only phase present when x greater than or equal to 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 M-s exhibits a minimum near x = 0.3. The polycrystalline magnetostriction of (Tb0.7Dy0.3)(0.7)Pr-0.3(Fe1-xCox)(1.85) decreases monotonically with increasing x. There is noevidence of an anomalously large lambda (100) value as is the case for other R(Fe1-xCox)(2) compounds.

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Documento generato il 23/09/20 alle ore 06:43:33