Phase diagrams of nanometer-sized particles in binary systems

Lee, Junggoo; Mori, Hirotarô; Lee, Joonho; Tanaka, Toshihiro; Penttilä, Karri

doi:10.1007/s11837-005-0235-6

Cited by 46 publications

(27 citation statements)

References 18 publications

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“…[9][10][11][12][13][14][15][16] They calculated the phase diagrams of nanoparticles and pointed out that the melting point decrease may be obtained across the whole composition range for conventional lead-free solder alloys. 13) They also found an interesting behavior of the phase diagram of nanoparticles using a simple regular solution model: when the interaction parameter of solid is positive and that of liquid is negative, all the solidus and liquidus lines and the eutectic point move to the corner of the lower melting point component.…”

Section: )mentioning

confidence: 99%

Preparation and Thermal Analysis of Sn-Ag Nano Solders

2010

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In this study, Sn-Ag nano solders of three different compositions (Sn-1.0 mass%Ag, Sn-3.5 mass%Ag and Sn-6.5 mass%Ag) were synthesized via arc-discharge process. The properties of Sn-Ag nano solders were analyzed using X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray spectroscopy (EDX), and Differential Scanning Calorimetry (DSC). Particle size relatively widely ranged from 10 nm to 340 nm. For Sn-1.0 mass%Ag and Sn-3.5 mass%Ag, average size was 200$240 nm, and that for Sn-6.5 mass%Ag was 40$50 nm with some extra-ordinary large particles of $100 nm. The melting points of the prepared SnAg nano solders were examined with DSC at different heating rates 1 K, 3 K and 5 K/min. The congruent melting point of Sn-Ag nano solders was found to be 487 K.

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confidence: 99%

Preparation and Thermal Analysis of Sn-Ag Nano Solders

2010

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“…It is well known that the Ag-Pd alloy forms a complete solid solution at room temperature, 28) and the Ferrando group 6) reported that the degree of core-shell formation in the bimetallic cluster may be related with the mixing nature of the bulk alloy. 6) Lee et al 29) reported that the binary nano phase diagram is shifted downward in terms of temperature because of the melting temperature drop in the nano system. However, the overall shape of the phase diagram did not change.…”

Section: Overall Cluster Structurementioning

confidence: 99%

Molecular Dynamic Simulation of Coalescence between Silver and Palladium Clusters

et al. 2007

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The coalescence between 135-Ag and 16-Pd clusters was studied through constant temperature molecular dynamic (MD) simulations at 300 K. Initially, the surface energy reduction was dominant. Later, some of the Pd atoms at the surface penetrated into the cluster and induced a further energy decrease. Surface atoms were rearranged to a local five-folded icosahedron structure (Ihp). Pd atoms gradually penetrated the cluster but did not segregate into the cluster core. As a result, a core-shell cluster structure was not observed, which could be explained by the strong mixing nature between Ag and Pd atoms and low kinetic energy.

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“…As one of the examples for the comparison of calculated results on nano-sized phase diagrams with experimental obsevations, Figs.9 and 10 shows the melting behabior of Bi-Sn binary alloy small droplet and the phase diagram of Bi-Sn system for the bulk and nano-sized particle, which was conducted by Lee et al [28]. …”

Section: Comparison Of Calculated Results On Nano-sized Phase Diagrammentioning

confidence: 99%

“…The detail of the above experimental procedure has been described in Refs. [28,58,59]. J-G. Lee and H. Mori have carried out many observations on nano-particle phase transformation.…”

Section: Thermal and Thermodynamic Stability Of Nanomaterialsmentioning

confidence: 99%

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Prediction of Phase Diagrams in Nano-Sized Binary Alloys

Tanaka

2010

MSF

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Abstract. The authors have evaluated the surface properties as well as phase diagrams of alloys on the basis of thermodynamic databases. Extending these techniques, we developed a new system to estimate phase equilibria of metals and alloys in small particle systems. The present paper describes our trial to evaluate the phase diagrams of binary alloys in nano-sized particle systems through thermodynamic databases.

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Phase diagrams of nanometer-sized particles in binary systems

Cited by 46 publications

References 18 publications

Preparation and Thermal Analysis of Sn-Ag Nano Solders

Preparation and Thermal Analysis of Sn-Ag Nano Solders

Molecular Dynamic Simulation of Coalescence between Silver and Palladium Clusters

Prediction of Phase Diagrams in Nano-Sized Binary Alloys

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