Microstructure of Rapidly Solidified Co-Sn-Ti and Co-Sn-Si Alloys

Abstract:

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In this study, rapidly solidified Co-Sn-Ti and Co-Sn-Si alloys were investigated as candidate cathodic materials for lithium-ion batteries. (Co0.5Sn0.5)1-xTix (x=0.1, 0.2, 0.3, 0.4) and (Co0.5Sn0.5)0.9Si0.1 alloys were produced by Ar arc-melting. These alloys were further rapidly solidified into ribbons by the single-roll melt-spinning method. Constituent phases in the ribbons were identified by XRD, indicating that all of the alloys were composed of crystalline multi-phases with no amorphous phase. The microstructure of the ribbons was observed by SEM and TEM, and the chemical composition of constituent phases was analyzed by TEM-EDS. It is found from the SEM and TEM observations that the grain size of the constituent phases ranged from tens to hundreds nanometers due to the rapid solidification effect.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

Young Won Chang, Nack J. Kim and Chong Soo Lee

Pages:

1357-1360

DOI:

10.4028/www.scientific.net/MSF.561-565.1357

Citation:

S. Fujisawa et al., "Microstructure of Rapidly Solidified Co-Sn-Ti and Co-Sn-Si Alloys", Materials Science Forum, Vols. 561-565, pp. 1357-1360, 2007

Online since:

October 2007

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Price:

$35.00

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