Metastable Colloidal States of Liquid Metallic Solutions

Popel, P. S.; Чикова, О. А.; Matveev, V.M.

doi:10.1515/htmp.1995.14.4.219

Cited by 72 publications

(46 citation statements)

References 4 publications

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“…The structure of a liquid will change with the increase of liquid temperature up to a critical value above which the liquid transits into a true solution state. 15) Below the critical temperature, the higher the liquid temperature, the smaller the average size of clusters in the liquid is. So, the size of the short-range orders in the liquid alloy will become smaller as the melting temperature increase from 1300 to 1580 K. The subsequently solidified microstructure of ingot AH12 should be finer than that of AL12 (as verified by Fig.…”

Section: Resultsmentioning

confidence: 99%

Microstructure of Zr-Al-Cu-Ni-Ag Ingot and the Thermal Stability of Corresponding Glass

Yan

et al. 2003

Mater. Trans.

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Zr 65 Al 7:5 Ni 10 Cu 12:5 Ag 5 ingots with different microstructures are obtained by changing the number of the repeated arc melting times. Differential scanning calorimetry (DSC) traces show that when the microstructure of the mother ingot becomes finer, the thermal stability of the glassy alloy improves during the crystallization of the glass. Because of the structure heredity, the finer the mother ingot microstructure is, the smaller the average size of the (Zr,Ag)-rich short-range orders in the glassy alloy is. The decrease of the size of the short-range orders makes the rearrangement of the elements more difficult in the glassy alloy. As a result, the activation energy for precipitation and decomposition of the Iphase becomes higher.

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Section: Resultsmentioning

confidence: 99%

Microstructure of Zr-Al-Cu-Ni-Ag Ingot and the Thermal Stability of Corresponding Glass

Yan

et al. 2003

Mater. Trans.

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“…• C. Also, investigations of the high--temperature properties and SROs of melts showed that the microheterogeneous states were metastable or nonequilibrium rather than thermodynamically stable [25]. Accordingly, in this study, we can reasonably guess that there are probably many metastable SROs (such as Sn-Sn, Cu-Cu, Bi-Bi and Sn-Cu, Sn-Bi SROs) in the melt at a low temperature above the liquidus.…”

Section: Electrical Resistivitymentioning

confidence: 56%

Effect of liquid-liquid transition on solidification and wettability of Sn-0.7Cu-xBi solder

Li¹,

Zhao²,

Zhang³

et al. 2016

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The electrical resistivity-temperature curve (ρ-T ) of Sn-0.7Cu-xBi (wt.%) melts was measured, and anomalous changes were observed on the ρ-T curve at the temperature far above the corresponding liquidus. The results reveal that the melts have experienced a temperatureinduced liquid-liquid transition (LLT), and the transition is reversible after the first cycle heating. Based on the result of LLT, solidification experiments and spreadability testing were carried out on the Sn-0.7Cu-xBi alloy to investigate the effect of LLT on the solidification and wettability. The results show that the microstructure was refined, and the wettability was improved when the solder samples solidified from the melt experienced LLT.K e y w o r d s : Sn-0.7Cu-xBi solders, liquid-liquid transition, solidification, wettability

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“…The second reason is. the occurrence of heterogeneity in the melt, 4 • 30 -32 which induces preferential nucleation and growth in some sites. These nuclei grow in the form.…”

Section: Discussionmentioning

confidence: 99%

Influence of casting temperature on microstructures and mechanical properties of Cu₅₀Zr_45.5Ti_2.5Y₂ metallic glass prepared using copper mold casting

et al. 2009

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The influence of casting temperatures on microstructures and mechanical properties of rapidly solidified Cu50Zr45.5Ti2.5Y2 alloy was investigated. With increasing casting temperatures, the amount of the crystalline phase decreases. At a high casting temperature, i.e., 1723 K, glass-forming ability (GFA) of the present alloy is enhanced. The results imply that adjusting the casting temperature could be used for designing the microstructures of bulk metallic glass matrix composite. Nanoindentation tests indicated that CuZr phases are slightly softer and can accommodate more plastic deformation than the amorphous matrix. Compression tests confirmed that this kind of second phase (CuZr) precipitated under lower casting temperatures helps to initiate multiple shear bands, resulting in a great improvement in mechanical properties of the samples. Our work indicates that casting temperatures have a great influence on GFA, microstructures, and mechanical properties of the rapidly solidified alloy, therefore controlling the casting temperature is crucial to the production of BMGs.

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Metastable Colloidal States of Liquid Metallic Solutions

Cited by 72 publications

References 4 publications

Microstructure of Zr-Al-Cu-Ni-Ag Ingot and the Thermal Stability of Corresponding Glass

Microstructure of Zr-Al-Cu-Ni-Ag Ingot and the Thermal Stability of Corresponding Glass

Effect of liquid-liquid transition on solidification and wettability of Sn-0.7Cu-xBi solder

Influence of casting temperature on microstructures and mechanical properties of Cu₅₀Zr_45.5Ti_2.5Y₂ metallic glass prepared using copper mold casting

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Metastable Colloidal States of Liquid Metallic Solutions

Cited by 72 publications

References 4 publications

Microstructure of Zr-Al-Cu-Ni-Ag Ingot and the Thermal Stability of Corresponding Glass

Microstructure of Zr-Al-Cu-Ni-Ag Ingot and the Thermal Stability of Corresponding Glass

Effect of liquid-liquid transition on solidification and wettability of Sn-0.7Cu-xBi solder

Influence of casting temperature on microstructures and mechanical properties of Cu50Zr45.5Ti2.5Y2 metallic glass prepared using copper mold casting

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Product

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Influence of casting temperature on microstructures and mechanical properties of Cu₅₀Zr_45.5Ti_2.5Y₂ metallic glass prepared using copper mold casting