MAGNETIC-PROPERTIES OF FE-CU-NB-SI-B NANOCRYSTALLINE MAGNETIC-ALLOYS

被引：2

作者：

DELMURO, MG ^{[1
]}

BATLLE, X ^{[1
]}

ZQUIAK, R ^{[1
]}

TEJADA, J ^{[1
]}

POLAK, C ^{[1
]}

GROSSINGER, R ^{[1
]}

机构：

[1] VIENNA TECH UNIV,INST EXPTL PHYS,A-1040 VIENNA,AUSTRIA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1994年 / 30卷 / 02期

关键词：

D O I：

10.1109/20.312316

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Several ribbons of composition Fe73.5Cu1Nb3Si16.5B6 and Fe73.5Cu1Nb3Si13.5B9 were prepared by annealing the as-quenched samples between 525-degrees-C and 700-degrees-C, which induced nucleation of nanocrystallites of Fe bcc-type composition. Mean grain sizes were obtained from X-ray diffraction. Static magnetic properties were measured with both a Magnet Physik Hysteresis-Graph (up to 200 Oe) and a SHE S.Q.U.I.D. Magnetometer (up to 50 kOe). Soft magnetic parameters (coercive field and initial permeability) were very sensitive to grain size. The ZFC magnetization at low field showed a broad peak at a temperature T(M), thus signalling a certain distribution of nanocrystlline sizes, and T(M) strongly decreased when the mean grain size decreased. Isothermal magnetization curves at low temperature showed the expected asymptotic behavior of a random magnet material at low and high fields.

引用

页码：502 / 504

页数：3

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