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Gilberto Carvalho Coelho

Gilberto Carvalho Coelho

:email: gilberto.coelho@usp.br
:telephone_receiver: +55 12 3159 9912

Research interests: Experimental determination of phase diagrams, Thermodynamic modeling of phase diagrams (CALPHAD method).

Info:

Recent Publications

2024

  1. Pinto da Silva, A.A.A., Ferreira, P.P., Dorini, T.T., Coelho, G.C., Nunes, C.A., & Eleno, L.T.F. (2024) Thermodynamic assessment of the Ta–Ge system supported by ab initio calculations. Calphad, 84, 102669.

    DOI: 10.1016/j.calphad.2024.102669

  2. Borowski, K.E., de Melo Silveira, V., Chaia, N., Wang, C., Zhao, J.-C., Nunes, C.A., & Coelho, G.C. (2024) Diffusion coefficients and atomic mobilities in the BCC phase of the Al–Nb–V system. Calphad, 85, 102699.

    DOI: 10.1016/j.calphad.2024.102699

  3. Barros, D.F., Nabil, C., Santos, J.C.P.dos, Abreu, D.A., Barros, C.S., Silveira, V.M., Nunes, C.A., & Coelho, G.C. (2024) Liquidus projection of the Al–V–Zr system. Calphad, 84, 102663.

    DOI: 10.1016/j.calphad.2024.102663

2023

  1. de Abreu, D.A., Barros, D.F., Santos, J.C.P., Borowski, K.E., Silva, A.A.A.P.da, Chaia, N., Nunes, C.A., & Coelho, G.C. (2023) Liquidus Projection of the Al-Ta-V System. Journal of Phase Equilibria and Diffusion, 44, 137–149.

    DOI: 10.1007/s11669-023-01026-2

  2. Fiorani, J.M., Badran, M., Joubert, J.M., Crivello, J.C., da Silva, A.A.A.P., Coelho, G.C., Nunes, C.A., David, N., & Vilasi, M. (2023) New approach to the compound energy formalism (NACEF) Part II. Thermodynamic modelling of the Al–Nb system supported by first-principles calculations. Calphad, 80, 102522.

    DOI: 10.1016/j.calphad.2022.102522

2022

  1. Zaidan, D.W., de Freitas, B.X., Coelho, G.C., Nunes, C.A., dos Santos, C., Ramos, E.C.T., & Ramos, A.S. (2022) The 1300 °C Isothermal Section in the Al2O3-Y2O3-Nb2O5 System. Journal of Phase Equilibria and Diffusion, 43, 393–400.

    DOI: 10.1007/s11669-022-00973-6

  2. Moraes, J.M., Chaia, N., Cotton, J.D., Coelho, G.C., & Nunes, C.A. (2022) A multi-principal element alloy combining high specific strength and good ductility. Materials Letters, 325, 132905.

    DOI: 10.1016/j.matlet.2022.132905

  3. Ferreira, L.M., Chaia, N., Coelho, G.C., & Nunes, C.A. (2022) Oxidation behavior of STA β-21S alloy and variants [Ti-xNb-yMo-5.6Al-0.5Si at%; x + y = 9.5]. Corrosion Science, 203, 110342.

    DOI: 10.1016/j.corsci.2022.110342

  4. Barros, D.F., Santos, J.C.P., Abreu, D.A., Silva, A.A.A.P., Borowski, K.E., Chaia, N., Nunes, C.A., & Coelho, G.C. (2022) Liquidus projection of the Al-Cr-V system. Journal of Alloys and Compounds, 899, 163258.

    DOI: 10.1016/j.jallcom.2021.163258

2021

  1. dos Santos, J.C.P., da Silva, A.A.A.P., Ferreira, P.P., Dorini, T.T., de Barros, D.F., de Abreu, D.A., Eleno, L.T.F., Nunes, C.A., & Coelho, G.C. (2021) Thermodynamic modeling of the Al–Nb–V system. Calphad, 74, 102321.

    DOI: 10.1016/j.calphad.2021.102321

  2. Silva, A.A.A.P., Lamoglia, M.S., Silva, G., Fiorani, J.-M., David, N., Vilasi, M., Coelho, G.C., Nunes, C.A., & Eleno, L.T.F. (2021) Heat capacity measurements of the Fe2Nb and Fe7Nb6 intermetallic compounds. Journal of Alloys and Compounds, 878, 160411.

    DOI: 10.1016/j.jallcom.2021.160411

  3. Salgado, M.V.S., Chaia, N., Silva, A.L.C.R., Freitas, B.X., Costa, A.M.S., Coelho, G.C., & Nunes, C.A. (2021) High-Temperature Oxidation Behavior of High-Aluminum (Co,Ni)-Based Superalloys for Friction Stir Welding (FSW) Tools. Oxidation of Metals, 95, 203–220.

    DOI: 10.1007/s11085-020-10013-8

  4. Dorini, T.T., de Freitas, B.X., Ferreira, P.P., Chaia, N., Suzuki, P.A., Joubert, J.-M., Nunes, C.A., Coelho, G.C., & Eleno, L.T.F. (2021) T2 phase site occupancies in the Cr–Si–B system: a combined synchroton-XRD/first-principles study. Scripta Materialia, 199, 113854.

    DOI: 10.1016/j.scriptamat.2021.113854

  5. Alkmin, L.B., Utada, S., Chaia, N., Reis, D.A., Coelho, G.C., Cormier, J., & Nunes, C.A. (2021) Creep behavior of conventional and Nb-modified as-cast MAR-M246 superalloy. Materials Science and Engineering: A, 813, 141170.

    DOI: 10.1016/j.msea.2021.141170

  6. Alkmin, L.B., Chaia, N., Utada, S., Cormier, J., Baldan, R., Coelho, G., & Nunes, C.A. (2021) High Temperature Oxidation Behavior of Conventional and Nb-Modified MAR-M246 Ni-Based Superalloy. Metallurgical and Materials Transactions A, 52, 2589–2600.

    DOI: 10.1007/s11661-021-06252-2

2020

  1. da Silva Salgado, M.V., de Freitas, B.X., da Silva Costa, A.M., Pereira, V.F., Chaia, N., Faria, M.I.S.T., Coelho, G.C., & Nunes, C.A. (2020) Processing and characterization of high aluminum multicomponent (Co,Ni)-based superalloys for friction stir welding (FSW) tools. Materials Today Communications, 25, 101282.

    DOI: 10.1016/j.mtcomm.2020.101282

  2. Santos, J.C.P., Chaia, N., Borowski, K.E., da Silva, A.A.A.P., Barros, D.F., Abreu, D.A., Nunes, C.A., & Coelho, G.C. (2020) Liquidus projection of the Al–Nb–V system. Calphad, 71, 102196.

    DOI: 10.1016/j.calphad.2020.102196

  3. Santos, J.C.P., Chaia, N., Borowski, K.E., Silva, A.A.A.P., Barros, D.F., Abreu, D.A., Nunes, C.A., & Coelho, G.C. (2020) Experimental Investigation of Phase Equilibria at 1200 \textdegreeC in the Al-Nb-V System. Journal of Phase Equilibria and Diffusion, 41, 172–180.

    DOI: 10.1007/s11669-020-00802-8

  4. Junior, L.A.B., da Silva, A.A.A.P., Coelho, G.C., & Nunes, C.A. (2020) Liquidus Projection of the Zr-Si-B Ternary System. Journal of Phase Equilibria and Diffusion, 41, 123–131.

    DOI: 10.1007/s11669-020-00787-4

  5. Gigolotti, J.C.J., da Silva, A.A.A.P., Coelho, G.C., Nunes, C.A., & Joubert, J.-M. (2020) Experimental Study of the Cr-Hf-Nb System: Liquidus Projection and 1200 \textdegreeC Isothermal Section. Journal of Phase Equilibria and Diffusion, 41, 702–721.

    DOI: 10.1007/s11669-020-00838-w

  6. Chaia, N., Cury, P.L., Rodrigues, G., Coelho, G.C., & Nunes, C.A. (2020) Aluminide and silicide diffusion coatings by pack cementation for Nb-Ti-Al alloy. Surface and Coatings Technology, 389, 125675.

    DOI: 10.1016/j.surfcoat.2020.125675

  7. Chaia, N., Cossu, C.M., Parrisch, C.J., Cotton, J.D., Coelho, G.C., & Nunes, C.A. (2020) Growth Kinetics of TiAl3 Diffusion Coating by Pack Cementation on Beta 21-S. Journal of Phase Equilibria and Diffusion, 41, 181–190.

    DOI: 10.1007/s11669-020-00819-z

  8. Abreu, D.A., Silva, A.A.A.P., Santos, J.C.P., Barros, D.F., Barros, C.S., Chaia, N., Nunes, C.A., & Coelho, G.C. (2020) Liquidus projection of the Al–Ti–Zr system. Journal of Alloys and Compounds, 849, 156463.

    DOI: 10.1016/j.jallcom.2020.156463

Faculty