Fabrication and structural observation of amorphous V-Co alloy by mechanical alloying (MA법에 의한 V-Co계 비정질합금의 제조 및 구조분석)

Lee Chung-Hyo (이충효)

Fabrication and structural observation of amorphous V-Co alloy by mechanical alloying

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2012, 22(1), pp.51-56
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering

Lee Chung-Hyo ¹

¹목포대학교

Accredited

ABSTRACT

In the present study, we investigated the effect of mechanical alloying (MA) on the formation of amorphous VCo system through solid state reaction during ball milling. Two types of powder samples, σ-VCo intermetallic compound and V50Co50 powder mixture, were applied as a starting materials. With increasing milling time, a structural characteristics into the amorphous state is distinctly observed from the structural factor and radial distribution by X-ray diffraction. Amorphization has been observed in all two types of samples after the milling for 120 hrs. DSC spectrum of V50Co50powder sample milled for 60 hrs indicates a sharp exothermic peak from the crystallization at 600oC. The structure factor,S(Q) and radial distribution function, RDF(r), observed by X-ray diffraction gradually change into a structure characteristic of an amorphous state with increasing MA time.

KEYWORDS

Mechanical alloying, V-Co amorphous alloy, σ-VCo intermetallic compound, Structure factor, Radial distribution function

Citation status

* References for papers published after 2023 are currently being built.

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