Preparation of nanosized particles of FeNi and FeCo alloy in solution

被引：65

作者：

Su, XB ^{[1
]}

Zheng, HG ^{[1
]}

Yang, ZP ^{[1
]}

Zhu, YC ^{[1
]}

Pan, AL ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2003年 / 38卷 / 22期

关键词：

Catalysis - Coercive force - Crystal structure - High resolution electron microscopy - Iron alloys - Magnetization - Morphology - Phase diagrams - Phase transitions - X ray diffraction analysis - X ray photoelectron spectroscopy;

D O I：

10.1023/A:1027350005911

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

FeNi and FeCo alloys of different compositions are prepared at room temperature in solution by surface catalysis or high-pressure inducement. Their sizes and morphologies are analyzed with X-ray diffraction (XRD), high-resolution transmission electron microscope (HRTEM) and X-ray photoelectron spectroscopy (XPS). The phase transformations of these alloys are similar to the reported phase diagrams of FeNi and FeCo alloys. HRTEM image of FeCo4 alloy shows the presence of rods. Their magnetic properties are studied. Surprisingly, the coercivity of FeCo4 alloy reaches as high as 718 Oe. (C) 2003 Kluwer Academic Publishers.

引用

页码：4581 / 4585

页数：5

共 12 条

[1]

AWSCHALOM DD, 1992, SCIENCE, P258

[2] MAGNETIC RECORDING MATERIALS SINCE 1975 [J].

BATE, G .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 100 (1-3) :413-424

[3] Chemical synthesis and characterization of a nanometric Fe50Ni50 alloy [J].

Bolsoni, R ;

Drago, V ;

Lima, E .

METASTABLE AND NANOSTRUCTURED MATERIALS - NANOMAT-2001, PROCEEDINGS, 2002, 403 :51-56

[4]

John FMoulder., 1992, Handbook of X-ray photoelectron spectroscopy: a reference book of standard spectra for identification and interpretation of XPS data

[5]

KONDO J, 1969, SOLID STATE PHYS, P23

[6]

NISHIZAWA T, 1984, B ALLOY PHASE DIAGRA

[7] Fine magnetic properties obtained in FeCo alloy nanowire arrays [J].

Qin, DH ;

Cao, L ;

Sun, QY ;

Huang, Y ;

Li, HL .

CHEMICAL PHYSICS LETTERS, 2002, 358 (5-6) :484-488

[8] Exchange splitting of FeNi3(110) bulk and surface bands [J].

Schedin, F ;

Hewitt, L ;

Morrall, P ;

Petrov, VN ;

Thornton, G .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 198-99 :555-557

[9]

SIEGEL RW, 1993, NANOSTRUCT MATER, V3, P1, DOI 10.1016/0965-9773(93)90058-J

[10]

Swartzendruber L.J., 1991, BINARY ALLOY PHASE D

← 1 2 →