Concentration dependence of the Debye temperature in extended solid solutions near the crystal-to-glass transition

Ettl, C.; Samwer, K.

doi:10.1016/0022-3093(93)90007-k

Cited by 6 publications

(2 citation statements)

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“…Up to xϭ70, the maximum drop in ⌰ measured in Fe-Al alloys is ϳ22%. In analogy with the analysis of Ettl and Samwer, 21 it was found that this value corresponds to a decrease in G of about 40%, which is in a qualitative agreement with the empirical value of the change in the shear elastic constant at the instability point.…”

Section: ͑2͒supporting

confidence: 84%

“…It has been empirically shown that a drop in the Debye temperature by ϳ20% and corresponding softening in the average shear modulus G of more than 40% were observed at the point of amorphization, where the average sheer modulus of the defective crystal becomes equal to the amorphous phase. 4,21 This phenomenon has been confirmed by a body of molecular-dynamic simulations. [22][23][24] In the present case, the Debye temperature of Fe-Al solid solutions has been measured according to Eq.…”

Section: ͑2͒mentioning

confidence: 55%

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Lattice instability in the solid-state amorphization of Fe(Al) solid solutions by mechanical alloying

Sheng

Zhao

et al. 1997

Phys. Rev. B

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Section: ͑2͒supporting

confidence: 84%

Section: ͑2͒mentioning

confidence: 55%

Lattice instability in the solid-state amorphization of Fe(Al) solid solutions by mechanical alloying

Sheng

Zhao

et al. 1997

Phys. Rev. B

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Physics of Crystal-to-Glass Transformations

Okamoto

Lam

Rehn

1999

Solid State Physics

132

102

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Amorphization of Zr–Al solid solutions under mechanical alloying at different temperatures

Sheng

1999

Journal of Applied Physics

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The effects of temperature on the amorphization of Zr-Al solid solutions have been investigated by ball milling Zr 100Ϫx Al x powder blends at different temperatures. At low milling temperatures, the Zr-Al solid solutions amorphized under the polymorphic constraint imposed by intensive external forcing. At elevated temperatures, the solid solution and the amorphous phases coexisted in an obvious two-phase region, signaling a transition approaching two-phase metastable equilibrium. The Al concentration needed for the complete amorphization of Zr-Al increased with increasing milling temperature. These observations, and in particular, the apparent reentrant liquidus, can be explained in terms of the temperature dependence of the external forcing effects brought in by the nonequilibrium milling process in this dynamic driven system.

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Concentration dependence of the Debye temperature in extended solid solutions near the crystal-to-glass transition

Cited by 6 publications

References 8 publications

Lattice instability in the solid-state amorphization of Fe(Al) solid solutions by mechanical alloying

Lattice instability in the solid-state amorphization of Fe(Al) solid solutions by mechanical alloying

Physics of Crystal-to-Glass Transformations

Amorphization of Zr–Al solid solutions under mechanical alloying at different temperatures

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