Analysis of Optimal Compositions of Ternary Bulk Metallic Glasses with Thermodynamic Quantities


Article Preview

The relationships of optimal compositions of bulk metallic glasses (BMGs) have been analyzed with a set of thermodynamic quantities of mismatch entropy normalized with respect to Boltzmann's constant (Sσ!/kB) and mixing enthalpy (Hmix) and with assistance of classification result of BMGs. The analysis shows clear dependence of the location of Sσ!/kB and Hmix values for optimal compositions of ternary BMGs in Sσ!/kB-Hmix chart in each alloy system. The ternary BMGs are summarized into four types: (1) Cu-based, (2) La-, Zr- and Ca-based, (3) Pd-based and (4) Fe- and Mg-based BMGs according to their maximum value of Sσ!/kB ((Sσ!/kB)max) and the largest and negative value of Hmix ((Hmix)L.N.) or their half values which are obtained for each system. These types of BMGs are related with the local arrangements of BMGs, which are widely accepted as an icosahedral structure for Metal-Metal type, a transformed tetragonal dodecahedrons and triacontrahedrons structure for Pd-Metalloid type, and a network-like structure for Metal-Metalloid type.



Materials Science Forum (Volumes 539-543)

Main Theme:

Edited by:

T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran




A. Takeuchi and A. Inoue, "Analysis of Optimal Compositions of Ternary Bulk Metallic Glasses with Thermodynamic Quantities", Materials Science Forum, Vols. 539-543, pp. 1988-1993, 2007

Online since:

March 2007




[1] Z.P. Lu, Y. Li and S.C. Ng: J. Non-Cryst. Solids Vol. 270 (2000), p.103.

[2] A. Inoue: Acta Mater. Vol. 48 (2000), p.279.

[3] A. Takeuchi and A. Inoue: Mater. Trans., Vol. 46 (2005), p.2817.

[4] A. Takeuchi and A. Inoue: J. Metastable and Nanocryst. Mater. Vol. 24-25 (2004), p.283.

[5] G.A. Mansoori, N. F Carnahan, K.E. Starling and T.W. Leland, Jr: J. Chem. Phys. Vol. 54 (1971), p.1523.

[6] A. Takeuchi and A. Inoue: Mater. Trans., JIM Vol. 41 (2000), p.1372.

[7] A. Takeuchi and A. Inoue: Mater. Sci. Eng. Vol. A304-306 (2001), p.446.

[8] F. R. de Boor, R. Boom, W. C. M. Mattens, A. R. Miedema, A. K. Nissen, Cohesion in Metals, ed. F. R. Boer and D. G. Pettifor (Elsevier Science Publishers B.V. 1988).

[9] B. C Giessen: Proc. of 4th Int'l Conf. on Rapidly Quenched Metals, (Sendai, 1981), p.213.

[10] A. Inoue and A. Takeuchi: Proc. of 3rd Int'l Conf. on Slow Dynamics in Complex Systems (2004), p.547 Fig. 5 Schematic illustration of local atomic arrangements for the BMG system alalyzed experimentally.

[10] .

Fetching data from Crossref.
This may take some time to load.