Magnetic properties of corrosion-resistant CoW films

被引：3

作者：

Yu, Lina ^{[1
]}

Lu, Liying ^{[2
]}

Xu, Zedong ^{[1
]}

Ma, Jianjun ^{[1
]}

Gao, Min ^{[1
]}

Xu, Xiaoguang ^{[1
]}

Jiang, Yong ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China

来源：

RSC ADVANCES | 2014年 / 4卷 / 50期

基金：

美国国家科学基金会;

关键词：

W THIN-FILMS; ELECTRODEPOSITION; TUNGSTEN; ALLOYS; BEHAVIOR;

D O I：

10.1039/c4ra02782e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

CoW films with different compositions have been prepared by an electrochemical deposition method. The tungsten contents in the CoW films are controlled by adjusting electrolyte concentrations, pH values, and applied potentials. The magnetic and corrosion-resistant properties of the CoW films are systematically studied. With an increase in tungsten content and annealing temperature, the CoW films shift from in-plane magnetic anisotropy to magnetic isotropy, which is due to the formation of a hexagonal close packed (hcp) Co3W phase confirmed by morphological and phase evolutions. The magnetic properties of the CoW films remain stable even after immersion in a 0.5% NaCl solution for 170 hours. An ultrathin tungsten oxide passivation layer coated on the surface of the films protects the CoW films from corrosion.

引用

页码：26508 / 26515

页数：8

共 19 条

[1] MAGNETIC-PROPERTIES OF ELECTRODEPOSITED CO-W THIN-FILMS [J].

ADMON, U ;

DARIEL, MP ;

GRUNBAUM, E ;

LODDER, JC .

JOURNAL OF APPLIED PHYSICS, 1987, 62 (05) :1943-1947

[2] Electrodeposition of nanocrystalline Co-W coatings from citrate electrolytes under conditions of controlled hydrodynamic: II. The electrodeposition rate and composition of the coatings [J].

Belevskii, S. S. ;

Tsyntsaru, N. I. ;

Dikusar, A. I. .

SURFACE ENGINEERING AND APPLIED ELECTROCHEMISTRY, 2010, 46 (02) :91-99

[3] Sliding wear behaviour of electrodeposited cobalt-tungsten and cobalt-tungsten-iron alloys [J].

Capel, H ;

Shipway, PH ;

Harris, SJ .

WEAR, 2003, 255 :917-923

[4] Anodic electrodeposition of conducting cobalt oxyhydroxide films on a gold surface. XPS study and electrochemical behaviour in neutral and alkaline solution [J].

Casella, IG ;

Guascito, MR .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 476 (01) :54-63

[5] Increase in rate of electrodeposition and in Ni(II) concentration in the bath as a way to control grain size of amorphous/nanocrystalline Ni-W alloys [J].

Cesiulis, H ;

Baltutiene, A ;

Donten, M ;

Donten, ML ;

Stojek, Z .

JOURNAL OF SOLID STATE ELECTROCHEMISTRY, 2002, 6 (04) :237-244

[6] Facile synthesis of Co-Pt hollow sphere electrocatalyst [J].

Chen, Ge ;

Xia, Dingguo ;

Nie, Zuoren ;

Wang, Zhenyao ;

Wang, Lei ;

Zhang, Lei ;

Zhang, Jiujun .

CHEMISTRY OF MATERIALS, 2007, 19 (07) :1840-1844

[7] Electrodeposition of CoWP film - III. Effect of pH and temperature [J].

Dulal, S. M. S. I. ;

Yun, Hyeong Jin ;

Shin, Chee Burm ;

Kim, Chang-Koo .

ELECTROCHIMICA ACTA, 2007, 53 (02) :934-943

[8] Structural and magnetic properties of amorphous Co-W alloyed nanoparticles [J].

Figueroa, A. I. ;

Bartolome, J. ;

Garcia, L. M. ;

Bartolome, F. ;

Magen, C. ;

Ibarra, A. ;

Ruiz, L. ;

Gonzalez-Calbet, J. M. ;

Petroff, F. ;

Deranlot, C. ;

Pascarelli, S. ;

Bencok, P. ;

Brookes, N. B. ;

Wilhelm, F. ;

Rogalev, A. .

PHYSICAL REVIEW B, 2011, 84 (18)

[9]

Glushkova M. A., 2013, MATER RES SOC S P, V1491, DOI 10.1557/opl.2012.1672

[10] A study on the Co-W activated Ni electrodes for the hydrogen production from alkaline water electrolysis - Energy saving [J].

Kaninski, Milica P. Moneta ;

Miulovic, Snezana M. ;

Tasic, Guozden S. ;

Maksic, Aleksandar D. ;

Nikolic, Vladimir M. .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2011, 36 (09) :5227-5235

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