Oxidation protective carbon layer for magnetic particles by surfactant reduction

B. Jeyadevan; Y. Suzuki; K. Tohji; I. Matsuoka

doi:10.1109/20.538914

Oxidation protective carbon layer for magnetic particles by surfactant reduction

B. Jeyadevan, Y. Suzuki, K. Tohji, I. Matsuoka

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Encapsulation of fine metal particles by graphite would not only provide an oxidation protective layer but also acts as a solid lubricant that enables high speed scanning of magnetic tapes against a writing/recording head. In this paper, we propose a novel method to produce the graphite layer on the surface of magnetic particles. First, the surfactant is adsorbed onto the particle and then reduced/decomposed by bombardment with ionized He atoms in the arc discharge chamber. As a result of this treatment, the magnetite particles are uniformly coated with a graphite layer of a few nanometers thick.

Original language	English
Pages (from-to)	4511-4513
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	32
Issue number	5 PART 2
DOIs	https://doi.org/10.1109/20.538914
Publication status	Published - 1996
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/20.538914

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AU - Suzuki, Y.

AU - Tohji, K.

AU - Matsuoka, I.

PY - 1996

Y1 - 1996

N2 - Encapsulation of fine metal particles by graphite would not only provide an oxidation protective layer but also acts as a solid lubricant that enables high speed scanning of magnetic tapes against a writing/recording head. In this paper, we propose a novel method to produce the graphite layer on the surface of magnetic particles. First, the surfactant is adsorbed onto the particle and then reduced/decomposed by bombardment with ionized He atoms in the arc discharge chamber. As a result of this treatment, the magnetite particles are uniformly coated with a graphite layer of a few nanometers thick.

AB - Encapsulation of fine metal particles by graphite would not only provide an oxidation protective layer but also acts as a solid lubricant that enables high speed scanning of magnetic tapes against a writing/recording head. In this paper, we propose a novel method to produce the graphite layer on the surface of magnetic particles. First, the surfactant is adsorbed onto the particle and then reduced/decomposed by bombardment with ionized He atoms in the arc discharge chamber. As a result of this treatment, the magnetite particles are uniformly coated with a graphite layer of a few nanometers thick.

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SN - 0018-9464

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Oxidation protective carbon layer for magnetic particles by surfactant reduction

Abstract

ASJC Scopus subject areas

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