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  • Guo, Cuiping  (15)
  • Engineering  (15)
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  • Engineering  (15)
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  • 1
    Online Resource
    Online Resource
    The heat capacity measurements of CoSb 3 -based Skutterudite compounds
    Walter de Gruyter GmbH ; 2010
    In:  International Journal of Materials Research Vol. 101, No. 6 ( 2010-06-01), p. 808-811
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 101, No. 6 ( 2010-06-01), p. 808-811
    Abstract: The thermoelectric materials of CoSb 3 -based Skutterudite compounds were prepared by spark plasma sintering. The micrographic images, the elemental compositions and the crystalline structures of the samples were characterized by scanning electronic microscopy, energy spectrum analysis and X-ray diffraction respectively. The molar heat capacities of CoSb 3 , (Co 0.95 Ni 0.05 )Sb 3 and Er 0.1 CoSb 3 were measured by modulated differential scanning calorimetry from 190 to 600 K. The results show that both the transition element Ni and the rare-earth element Er can decrease considerably the molar heat capacities of CoSb 3 -based compounds.
    Type of Medium: Online Resource
    ISSN: 2195-8556 , 1862-5282
    URL: Article
    DOI: 10.3139/146.110336
    RVK:
    ZG 1100
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2010
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
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  • 2
    Online Resource
    Online Resource
    Thermodynamic modeling of the Cu–Se system
    Walter de Gruyter GmbH ; 2008
    In:  International Journal of Materials Research Vol. 99, No. 3 ( 2008-03-01), p. 294-300
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 99, No. 3 ( 2008-03-01), p. 294-300
    Abstract: The Cu – Se system was modeled by means of the CALPHAD technique. Considering two miscibility gaps of the liquid existed on each side of the compound Cu 2 Se, the associate model with the associate species “Cu 2 Se” was adopted to describe the Gibbs energy for the liquid and compared to the random solution model. The optimizing results showed that the thermodynamic model describing the liquid phase as a solution of Cu, Se and a “Cu 2 Se” associate fits well with the experimental data. The intermetallic compounds, Cu 3 Se 2 , α-CuSe, β-CuSe, γ-CuSe and CuSe 2 were treated as stoichiometric compounds. The com-pounds α-Cu 2 Se and β-Cu 2 Se, which have a homogeneity range, were treated as the formulae α-(Cu, Se) 2 Se and β-(Cu, Se) 2 Se by a two-sublattice model. A set of self-consistent thermodynamic parameters of the Cu – Se system was obtained.
    Type of Medium: Online Resource
    ISSN: 2195-8556 , 1862-5282
    URL: Article
    DOI: 10.3139/146.101636
    RVK:
    ZG 1100
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2008
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
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  • 3
    Online Resource
    Online Resource
    Experimental determination of the isothermal sections and liquidus surface projection of the Mo–Si–V ternary system
    Walter de Gruyter GmbH ; 2022
    In:  International Journal of Materials Research Vol. 113, No. 5 ( 2022-05-26), p. 440-459
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 113, No. 5 ( 2022-05-26), p. 440-459
    Abstract: The phase equilibria of the Mo–Si–V ternary system were experimentally determined, including the isothermal sections at 1200 and 1450 °C, as well as the liquidus surface projection. The microstructures, crystal structures and phase constitutions of the as-cast and the annealed alloys in whole composition range were investigated by means of scanning electron microscopy equipped with energy dispersive spectroscopy, electron probe microanalyzer and X-ray diffraction. Five three-phase regions and ten two-phase regions were confirmed and no ternary compounds were observed in isothermal sections at 1200 and 1450 °C. In addition, the solidification paths of different Mo–Si–V alloys were analyzed to verify the primarily solidified phases. The stoichiometric compounds Mo 5 Si 3 and V 5 Si 3 have the same structure-type (W 5 Si 3 ), however, they have two different compositions in the Mo–Si–V ternary system. They form two-line compounds Mo-rich Mo(V) 5 Si 3 and V-rich V(Mo) 5 Si 3 . Eight primary solidification regions were finally confirmed on the basis of the study on the solidification processes of the as-cast alloys. The present experimental results are useful for the thermodynamic assessment of the Mo–Si–V ternary system, and the database development for the multi-component Nb/Mo–Si-based superalloy system.
    Type of Medium: Online Resource
    ISSN: 1862-5282 , 2195-8556
    URL: Article
    DOI: 10.1515/ijmr-2021-8357
    RVK:
    ZG 1100
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2022
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
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  • 4
    Online Resource
    Online Resource
    Thermodynamic description of the Cu–S–Sn system
    Walter de Gruyter GmbH ; 2018
    In:  International Journal of Materials Research Vol. 109, No. 3 ( 2018-03-13), p. 201-218
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 109, No. 3 ( 2018-03-13), p. 201-218
    Abstract: The thermodynamic optimisation of the Cu–S–Sn system was carried out using the CALPHAD technique. For the liquid phase, an associated solution model, (Cu, Cu 2 S, S, SnS, Sn), was used by assuming the existence of two associates: Cu 2 S and SnS. Ternary compounds Cu 5 Sn 2 S 7 and Cu 10 Sn 2 S 13 were treated as stoichiometric compounds. Ternary compounds Cu 4 SnS 4 , Cu 2 SnS 3 , and Cu 4 Sn 3 S 8 were located on the Cu 2 S–SnS 2 joint and described using the model (Cu 2 S) p (SnS 2 ) q . The Cu 2 Sn 3 S 7 compound was also located on the Cu 2 S–SnS 2 joint and was described as (Cu 2 S, SnS 2 ) considering the range of its homogeneity. With the present thermodynamic parameters, the projection of the liquidus surfaces and invariant reactions of the Cu–S–Sn system were predicted. A set of self-consistent thermodynamic parameters of the Cu–S–Sn system could be obtained.
    Type of Medium: Online Resource
    ISSN: 2195-8556 , 1862-5282
    URL: Article
    DOI: 10.3139/146.111592
    RVK:
    ZG 1100
    Language: Unknown
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2018
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
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  • 5
    Online Resource
    Online Resource
    Thermodynamic description of the Ta–W–Zr system
    Walter de Gruyter GmbH ; 2014
    In:  International Journal of Materials Research Vol. 105, No. 11 ( 2014-11-10), p. 1048-1056
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 105, No. 11 ( 2014-11-10), p. 1048-1056
    Abstract: The Ta–W, W–Zr and Ta–W–Zr systems are critically reviewed and modeled using the CALPHAD technique. The enthalpy of formation of the stoichiometric compound W 2 Zr in the W–Zr system is predicted from first-principles calculations. The solution phases (liquid, bcc and hcp) are modeled by the substitutional solution model. The compound W 2 Zr is treated with the formula (Ta,W) 2 Zr in the Ta–W–Zr system because of a significant solid solubility of Ta in W 2 Zr. All experimental data, including the Gibbs energy of formation, enthalpy of formation, activity of Ta and W of bcc phase at 1 200 K, Ta–W and W–Zr phase diagrams, and three isothermal sections of the Ta–W–Zr system at 1 073, 1 098, and 1 873 K, are reproduced in the present work. A set of self-consistent thermodynamic parameters of the Ta–W–Zr system is obtained.
    Type of Medium: Online Resource
    ISSN: 2195-8556 , 1862-5282
    URL: Article
    DOI: 10.3139/146.111125
    RVK:
    ZG 1100
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2014
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
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  • 6
    Online Resource
    Online Resource
    Thermodynamic modeling of the Ba–Mg binary system
    Walter de Gruyter GmbH ; 2013
    In:  International Journal of Materials Research Vol. 104, No. 4 ( 2013-04-11), p. 358-363
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 104, No. 4 ( 2013-04-11), p. 358-363
    Abstract: On the basis of the thermochemical and phase equilibrium experimental data, the phase diagram of the Ba–Mg binary system has been assessed by means of the calculation of phase diagrams technique. The liquid phase is of unlimited solubility and modeled as a solution phase using the Redlich–Kister equation. The intermetallic compounds, Mg 17 Ba 2 , Mg 23 Ba 6 and Mg 2 Ba, with no solubility ranges are treated as strict stoichiometric compounds with the formula Mg m Ba n . Two terminal phases, Bcc_Ba and Hcp_Mg, are kept as solution phases, since the solubilities of the two phases are of considerable importance. After optimization, a set of self-consistent thermodynamic parameters has been obtained. The calculated values agree well with the available experimental data.
    Type of Medium: Online Resource
    ISSN: 2195-8556 , 1862-5282
    URL: Article
    DOI: 10.3139/146.110870
    RVK:
    ZG 1100
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2013
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
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  • 7
    Online Resource
    Online Resource
    Thermodynamic modeling of the In–Pt–Sb system
    Walter de Gruyter GmbH ; 2014
    In:  International Journal of Materials Research Vol. 105, No. 6 ( 2014-06-12), p. 525-536
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 105, No. 6 ( 2014-06-12), p. 525-536
    Abstract: The In–Pt–Sb system is modeled using the CALPHAD technique. The solution phases (liquid, fcc(Pt), rhom(Sb) and tetra(In)) are described as substitutional solution. The enthalpies of formation of the intermetallic compounds, Pt 7 Sb, Pt 3 Sb, Pt 3 Sb 2 , PtSb, PtSb 2 are calculated using first-principles calculations. In the In–Pt–Sb system, the compounds In 3 Pt 2 , In 2 Pt, In 7 Pt 3 in the In–Pt binary system and the compounds PtSb 2 and PtSb in the Pt–Sb binary system are treated as line compounds (In,Sb) m Pt n according to experimental solid solubility of the third component. The compound In 5 Pt 6 is treated as (In,Pt,Sb) 5 (In,Pt) 6 based on its thermodynamic model in the In–Pt system and experimental solid solubility of Sb in the In–Pt–Sb system. The thermodynamic model of compound InPt 3 keeps the order–disorder transition model with fcc(Pt) solid solution which was used in the In–Pt binary system, and is treated as (In,Pt,Sb) 0.25 (In,Pt,Sb) 0.75 . Other compounds InPt, In 9 Pt 13 , αIn 2 Pt 3 , βIn 2 Pt 3 , InPt 2 and InSb in the In–Pt–Sb system keep the same thermodynamic models as those in binary systems. Based on the published experimental isothermal sections, vertical sections and the liquidus surface projection, the In–Pt–Sb system is modeled, and a set of self-consistent thermodynamic parameters is obtained.
    Type of Medium: Online Resource
    ISSN: 2195-8556 , 1862-5282
    URL: Article
    DOI: 10.3139/146.111072
    RVK:
    ZG 1100
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2014
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
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  • 8
    Online Resource
    Online Resource
    Experimental determination of isothermal sections of the Hf–Nb–Ni system at 950 and 1100 ° C
    Walter de Gruyter GmbH ; 2022
    In:  International Journal of Materials Research Vol. 113, No. 5 ( 2022-05-26), p. 460-475
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 113, No. 5 ( 2022-05-26), p. 460-475
    Abstract: The complete isothermal sections of the Hf–Nb–Ni system at 950 and 1100 °C were constructed, in which the phase constituents and compositions of alloy samples were determined by scanning electron microscopy with energy dispersive X-ray spectroscopy, and X-ray diffraction. Nine three-phase regions at 950 °C and nine three-phase regions at 1100 °C were confirmed. Four three-phase regions at 950 °C and five three-phase regions at 1100 °C were proposed. The solid solubilities of third components in the binary compounds were determined. A new ternary compound τ with Hf 2 Rh structure was found.
    Type of Medium: Online Resource
    ISSN: 1862-5282 , 2195-8556
    URL: Article
    DOI: 10.1515/ijmr-2021-8389
    RVK:
    ZG 1100
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2022
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
    Location Call Number Limitation Availability
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  • 9
    Online Resource
    Online Resource
    Thermodynamic description of the Ce-Mg-Y and Mg-Nd-Y systems
    Walter de Gruyter GmbH ; 2008
    In:  International Journal of Materials Research Vol. 99, No. 6 ( 2008-06-01), p. 650-688
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 99, No. 6 ( 2008-06-01), p. 650-688
    Abstract: The thermodynamic modeling and optimization of the Ce-Mg, Ce-Y, Mg-Nd, Nd-Y, Ce-Mg-Y and Mg-Nd-Y systems have been carried out by means of the CALPHAD technique. The solution phases, liquid, body-centered cubic, face-centered cubic, hexagonal close-packed and double hexagonal close-packed, were described by the substitutional solution model. The isostructural MgCe, MgNd and MgY phases with B2 structure form continuous range of solid solutions in the Ce-Mg-Y and Mg-Nd-Y ternary systems. The order-disorder transition between the solutions with A2 structure and compounds with B2 structure in the systems has been taken into account and thermodynamically modeled. The other compounds Mg 2 Y, Mg 24 Y 5 , Mg 3 R, Mg 41 R 5 , Mg 2 R and Mg 12 Ce (R = Ce and Nd) in the Mg-R-Y system exhibit different solubilities of the third component. A set of self-consistent thermodynamic descriptions of the Ce-Mg-Y and Mg-Nd-Y systems was obtained.
    Type of Medium: Online Resource
    ISSN: 2195-8556 , 1862-5282
    URL: Article
    DOI: 10.3139/146.101685
    RVK:
    ZG 1100
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2008
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
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  • 10
    Online Resource
    Online Resource
    Thermodynamic re-assessment of the Ni – Sn system
    Walter de Gruyter GmbH ; 2013
    In:  International Journal of Materials Research Vol. 104, No. 1 ( 2013-01-01), p. 51-59
    Details
    In: International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 104, No. 1 ( 2013-01-01), p. 51-59
    Abstract: The Ni – Sn system was critically re-assessed by means of the CALPHAD technique. The excess Gibbs energies of the solution phases (liquid, fcc (Ni) and bct (Sn)) were modeled with the Redlich–Kister equation. Five intermetallic compounds, Ni 3 Sn_HT (which is stable at high temperature), Ni 3 Sn_LT (which is stable at low temperature), Ni 3 Sn 2 _HT, Ni 3 Sn 2 _LT and Ni 3 Sn 4 in the Ni – Sn system were treated as the formula (Ni,Sn) 1/4 (Ni,Sn) 1/4 (Ni) 1/2 , (Ni,Sn) 3/4 (Ni,Sn) 1/4 , (Ni) 1/3 (Ni,Sn) 1/3 (Sn) 1/3 , (Sn) 1/5 (Ni,Sn) 2/5  · (Ni) 2/5 , and (Ni) 1/4 (Ni,Sn) 1/4 (Ni) 1/2 , respectively. A set of self-consistent thermodynamic parameters of the Ni – Sn system was obtained.
    Type of Medium: Online Resource
    ISSN: 2195-8556 , 1862-5282
    URL: Article
    DOI: 10.3139/146.110827
    RVK:
    ZG 1100
    Language: Unknown
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2013
    detail.hit.zdb_id: 2232675-3
    detail.hit.zdb_id: 2128058-7
    detail.hit.zdb_id: 203021-4
    Location Call Number Limitation Availability
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