Tribochemical Effects of MoSi2 Powder in Ball Milling

Qi Zhou; Qin Ma; Shu Jun Zang; Jian Jun Liu; Cui Xia Wang

doi:10.4028/www.scientific.net/KEM.336-338.965

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 336-338Tribochemical Effects of MoSi2 Powder in Ball...

Tribochemical Effects of MoSi₂ Powder in Ball Milling

Abstract:

The tribochemical effects of MoSi2 powder in the ball milling process have been studied by X-ray diffraction (XRD) and QM-4H milling machine. It has been found that the intensity of diffraction peak of MoSi2 powder is continuously decreased and the width increased with the increase of milling time. Specifically, the crystallite size decreased largely in the early stage of milling. Contrary to the above, the microstrain and the effective temperature factor increased considerably. After ninety hours of milling, the crystallite size had little changes. The relations among the tribochemical effect factors are as follows: the microstrain and the effective temperature factor increase with the decrease of the crystallite size. The microstrain increases with the increase of the effective temperature factor.

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Periodical:

Key Engineering Materials (Volumes 336-338)

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965-967

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.965

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Online since:

April 2007

Authors:

Qi Zhou, Qin Ma, Shu Jun Zang, Jian Jun Liu, Cui Xia Wang

Keywords:

Ball Milling, Intermetallic, MoSi₂, Tribochemistry

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0045 � � (%) Beff (10 -2 nm 2 ) Fig. 5 Relationship between crystallite size and effective temperature factor during milling Fig. 6 Relationship between microstrain and effective temperature factor during milling.

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