Structural Stability and Elasticity in Zr-Based Bulk Metallic Glasses

Abstract:

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The structure, thermal stability and elasticity of Zr50Cu40Al10 bulk metallic glass (BMG) have been investigated with reference to Zr70Cu30 and Zr70Cu20Al10 amorphous alloys. The thermal stability of Zr50Cu40Al10 is significantly enhanced in comparison compared with those of the others. The large total coordination numbers more than 11 around all constituent elements are observed in Zr50Cu40Al10. A change of the bulk modulus in the crystallization is extremely small in Zr50Cu40Al10. The present experimental results indicate that atoms in the Zr50Cu40Al10 glass are closely packed and its microstructure is fairly uniform. This results in the much higher thermal stability of Zr50Cu40Al10.

Info:

Periodical:

Materials Science Forum (Volumes 561-565)

Main Theme:

Edited by:

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

Pages:

1391-1395

DOI:

10.4028/www.scientific.net/MSF.561-565.1391

Citation:

S. Zhang et al., "Structural Stability and Elasticity in Zr-Based Bulk Metallic Glasses", Materials Science Forum, Vols. 561-565, pp. 1391-1395, 2007

Online since:

October 2007

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Price:

$35.00

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