Thermodynamic modelling of the Ti–Sn system and calculation of the Co–Ti–Sn system

Yin, Fei; Tedenac, Jean‐Claude; Gascoin, Franck

doi:10.1016/j.calphad.2007.01.003

Cited by 84 publications

(50 citation statements)

References 21 publications

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“…The version of Ti-Sn system ( Figure 1a) as given by Yin et al was taken because the coordinates of eutectic L Ø (β-Ti) + Ti 3 Sn correspond better to the version of the system presented in these studies. It is also suggested that the thermodynamic model agrees well with the experimental phase diagram [10]. There are nine phases: liquid, β-Ti (bcc), α-Ti (hcp), β-Sn (bct), α-Sn, Ti 3 Sn, Ti 2 Sn, Ti 5 Sn 3 and Ti 6 Sn 5 .…”

Section: Introductionsupporting

confidence: 65%

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Experimental Investigation of the Ti-Nb-Sn Isothermal Section at 1173 K

Wang

Liu

Zhang

et al. 2016

Metals

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Isothermal section of Ti-Nb-Sn at 1173 K was experimentally studied by back-scattered electron, electron probe microanalysis and X-ray diffraction analysis. Solid solution phase β(Ti, Nb), liquid Sn and eight intermetallic compounds Ti 3 Sn, Ti 2 Sn, Ti 5 Sn 3 , Ti 6 Sn 5 , Nb 6 Sn 5 , Nb 3 Sn, Ti 3 Nb 2 Sn 2 and Ti 3 NbSn coexisted. Four ternary phase regions Ti 3 Sn + Ti 3 NbSn + β(Ti, Nb), Ti 3 NbSn + Ti 3 Nb 3 Sn 2 + Ti 3 Sn, Ti 2 Sn + Ti 3 Sn + Ti 3 Nb 3 Sn 2 and Ti 6 Sn 5 + Ti 3 Nb 3 Sn 2 + Nb 3 Sn were experimented. In addition, the proper composition range of the single phase was suggested. All the detected Ti-Sn and Nb-Sn compounds have a remarkable solubility along the isoconcentration of Sn. β(Ti, Nb) has a relatively large solution while liquid Sn has a little in the isothermal section.

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Section: Introductionsupporting

confidence: 65%

“…Ti-Sn has been systematically studied [7][8][9][10][11][12][13][14]. The version of Ti-Sn system ( Figure 1a) as given by Yin et al was taken because the coordinates of eutectic L Ø (β-Ti) + Ti 3 Sn correspond better to the version of the system presented in these studies.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Ti-Nb-Sn Isothermal Section at 1173 K

Wang

Liu

Zhang

et al. 2016

Metals

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“…The identified phases are consistent with the phase diagram in the literature. 16) Moreover, it was found that the reaction of alloy with the alumina crucible was not observed.…”

Section: Activities Of Titanium-tin Alloymentioning

confidence: 99%

“…1. This phase diagram was constructed by Yin et al 16) by means of CALPHAD technique. In the figure numerals are the phase boundaries in mole fraction of tin seen in the phase diagram.…”

Section: Methodsmentioning

confidence: 99%

“…The system constitutes the practical titanium base alloys as with the Ti-Al system. However, there has been no report so far concerning the activities of the component in the Ti-Sn system over the whole concentration range, though the phase diagram calculation 16) of the system was carried out by means of CALPHAD technique. Since the vapor pressure of tin is approximately four orders of magnitude larger than that of titanium at a temperature of 1400 K, Knudsen effusion method is well suited for the activity measurement of the Ti-Sn system.…”

Section: Introductionmentioning

confidence: 99%

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Activity Measurement of Titanium-Tin Alloys by Knudsen Effusion Method

Itoh

Inoue

2011

Mater. Trans.

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Direct Observation of Inherent Atomic‐Scale Defect Disorders responsible for High‐Performance Ti₁₋_xHf_xNiSn₁₋_ySb_y Half‐Heusler Thermoelectric Alloys

Kim

Mun

et al. 2017

Advanced Materials

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Structural defects often dominate the electronic- and thermal-transport properties of thermoelectric (TE) materials and are thus a central ingredient for improving their performance. However, understanding the relationship between TE performance and the disordered atomic defects that are generally inherent in nanostructured alloys remains a challenge. Herein, the use of scanning transmission electron microscopy to visualize atomic defects directly is described and disordered atomic-scale defects are demonstrated to be responsible for the enhancement of TE performance in nanostructured Ti Hf NiSn Sb half-Heusler alloys. The disordered defects at all atomic sites induce a local composition fluctuation, effectively scattering phonons and improving the power factor. It is observed that the Ni interstitial and Ti,Hf/Sn antisite defects are collectively formed, leading to significant atomic disorder that causes the additional reduction of lattice thermal conductivity. The Ti Hf NiSn Sb alloys containing inherent atomic-scale defect disorders are produced in one hour by a newly developed process of temperature-regulated rapid solidification followed by sintering. The collective atomic-scale defect disorder improves the zT to 1.09 ± 0.12 at 800 K for the Ti Hf NiSn Sb alloy. These results provide a promising avenue for improving the TE performance of state-of-the-art materials.

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Thermodynamic modelling of the Ti–Sn system and calculation of the Co–Ti–Sn system

Cited by 84 publications

References 21 publications

Experimental Investigation of the Ti-Nb-Sn Isothermal Section at 1173 K

Experimental Investigation of the Ti-Nb-Sn Isothermal Section at 1173 K

Activity Measurement of Titanium-Tin Alloys by Knudsen Effusion Method

Direct Observation of Inherent Atomic‐Scale Defect Disorders responsible for High‐Performance Ti₁₋_xHf_xNiSn₁₋_ySb_y Half‐Heusler Thermoelectric Alloys

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Thermodynamic modelling of the Ti–Sn system and calculation of the Co–Ti–Sn system

Cited by 84 publications

References 21 publications

Experimental Investigation of the Ti-Nb-Sn Isothermal Section at 1173 K

Experimental Investigation of the Ti-Nb-Sn Isothermal Section at 1173 K

Activity Measurement of Titanium-Tin Alloys by Knudsen Effusion Method

Direct Observation of Inherent Atomic‐Scale Defect Disorders responsible for High‐Performance Ti1−xHfxNiSn1−ySby Half‐Heusler Thermoelectric Alloys

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Direct Observation of Inherent Atomic‐Scale Defect Disorders responsible for High‐Performance Ti₁₋_xHf_xNiSn₁₋_ySb_y Half‐Heusler Thermoelectric Alloys