The influence of ion plating of nickel on amorphous magnetic alloy as detected by ferromagnetic and antiferromagnetic resonance

1987 ◽  
Vol 99 (1) ◽  
pp. K57-K59 ◽  
Author(s):  
H. Gärtner ◽  
Z. Frait
Author(s):  
T. P. Nolan

Thin film magnetic media are being used as low cost, high density forms of information storage. The development of this technology requires the study, at the sub-micron level, of morphological, crystallographic, and magnetic properties, throughout the depth of the deposited films. As the microstructure becomes increasingly fine, widi grain sizes approaching 100Å, the unique characterization capabilities of transmission electron microscopy (TEM) have become indispensable to the analysis of such thin film magnetic media.Films were deposited at 225°C, on two NiP plated Al substrates, one polished, and one circumferentially textured with a mean roughness of 55Å. Three layers, a 750Å chromium underlayer, a 600Å layer of magnetic alloy of composition Co84Cr14Ta2, and a 300Å amorphous carbon overcoat were then sputter deposited using a dc magnetron system at a power of 1kW, in a chamber evacuated below 10-6 torr and filled to 12μm Ar pressure. The textured medium is presently used in industry owing to its high coercivity, Hc, and relatively low noise. One important feature is that the coercivity in the circumferential read/write direction is significandy higher than that in the radial direction.


1971 ◽  
Vol 32 (C1) ◽  
pp. C1-1149-C1-1150
Author(s):  
V. A. SANINA ◽  
E. I. GOLOVENCHITS ◽  
T. A. FOMINA ◽  
A. G. GUREVICH

2019 ◽  
Vol 139 (10) ◽  
pp. 873-879 ◽  
Author(s):  
Tsuyoshi Nonaka ◽  
Shingo Zeze ◽  
Shogo Makino ◽  
Motomichi Ohto

Alloy Digest ◽  
1995 ◽  
Vol 44 (10) ◽  

Abstract NILOMAG ALLOY 77 is a 77 Ni soft magnetic alloy with a high level of initial permeability. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating. Filing Code: Ni-488. Producer or source: Inco Alloys International Inc.


Alloy Digest ◽  
1991 ◽  
Vol 40 (12) ◽  

Abstract MUMETAL is a very high permeability soft magnetic alloy. (See also Alloy Digest Ni-25, April 1956.) This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on heat treating. Filing Code: Ni-398. Producer or source: Spang Specialty Metals.


Alloy Digest ◽  
1993 ◽  
Vol 42 (4) ◽  

Abstract Ferroperm is a soft magnetic alloy that contains 1% aluminum. This addition of aluminum combined with high-temperature annealing increases permeability and reduces coercivity without decreasing the high-saturation magnetization of pure iron. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on forming. Filing Code: FE-99. Producer or source: NKK Corporation.


Alloy Digest ◽  
2017 ◽  
Vol 66 (8) ◽  

Abstract SUPRA 50 is a soft magnetic alloy with close to 50% nickel. It typically runs 47.5 Ni; 0.5 Mn, 0.1 Si; and 0.005 C This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming and heat treating. Filing Code: Fe-167. Producer or source: Lamineries Matthey SA.


1987 ◽  
Vol 38 (6) ◽  
pp. 228-233
Author(s):  
Saburou KUWANO ◽  
Masahiro SUGIYAMA ◽  
Yoshio SHIBUYA ◽  
Terunori OOTAKE ◽  
Takeo OKI

Vacuum ◽  
2021 ◽  
pp. 110152
Author(s):  
Lijun Xian ◽  
Haibo Zhao ◽  
Guang Xian ◽  
Chencheng Wang ◽  
Hong He

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