Tribochemical Effects of MoSi2 Powder in Ball Milling

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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.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

965-967

DOI:

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

Citation:

Q. Zhou et al., "Tribochemical Effects of MoSi2 Powder in Ball Milling", Key Engineering Materials, Vols. 336-338, pp. 965-967, 2007

Online since:

April 2007

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Price:

$35.00

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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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