RIADH Guendouz

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RIADH Guendouz

رياض قندوز

riadh.guendouz@univ-msila.dz

0676314628

  • Departement of Physics
  • Faculty of Sciences
  • Grade PHd
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About Me

Education

Master en Physique des matériaux. in Université Mohamed Boudiaf de M'Sila

Domain

Sciences de la Matière

Filiere

Physique

Physics of Materials

Location

Bordj Bou Arreridj, Bordj Bou Arreridj

برج بوعريريج, ALGERIA

Code RFIDE

  • 2025-02-01
  • 2025-02-01

    Effects of Ta on the Structural, mechanical and electronic properties of the ternary alloys TaxHf1− xN: A computational study

    The structural, elastic and electronic properties of the ternary transition metal nitrides alloys TaxHf1-xN at (0-x-1) in the rock-salt structure are investigated by ab initio calculations. The calculations were performed using the first-principles Exact Muffin-Tin Orbitals method using full charge density technique within the framework of density functional theory. The compositional disorder is treated within the coherent potential approximation. The estimated formation enthalpy indicates that Ta0.5Hf0.5N is thermodynamically the most stable alloy. The obtained lattice parameters of the TaxHf1-xN alloys are in good agreement with other available theoretical and experimental values. The predicted elastic stiffness constants C11, C12 and indicate that the TaxHf1-xN alloys are mechanically stable and the addition of Ta increases their ductility. The Ta0.7Hf0.3N found to be hardest alloy. The correlation between Pettifor’s criterion (C12-C44) normalized by bulk modulus B and Pugh’s ratio G/B with increasing the degree of alloying x allowed us to predict that the critical value G/B=0.53, which correspond to x around 0.6 +/- 0.05, marks the brittle to ductile transition.

    Citation

    MOHAMED Benhamida , riadh guendouz , , (2025-02-01), Effects of Ta on the Structural, mechanical and electronic properties of the ternary alloys TaxHf1− xN: A computational study, Physica B: Condensed Matter, Vol:968, Issue:1, pages:416749, North-Holland

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  • 2024-11-20
  • 2024-11-20

    STRUCTURAL AND ELASTIC PROPERTIES OF HIGH ENTROPY CARBIDE (TiMoHfNbTa)C: A FIRST-PRINCIPLES STUDY

    STRUCTURAL AND ELASTIC PROPERTIES OF HIGH ENTROPY CARBIDE (TiMoHfNbTa)C: A FIRST-PRINCIPLES STUDY

    Citation

    MOHAMED Benhamida , riadh guendouz , ,(2024-11-20), STRUCTURAL AND ELASTIC PROPERTIES OF HIGH ENTROPY CARBIDE (TiMoHfNbTa)C: A FIRST-PRINCIPLES STUDY,International Conference on Material and Mechanic ICMM'2024,Boumerdes

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  • 2024-10-30
  • 2024-10-30

    Investigation of structural and elastic properties of high entropy

    Investigation of structural and elastic properties of high entropy

    Citation

    MOHAMED Benhamida , riadh guendouz , ,(2024-10-30), Investigation of structural and elastic properties of high entropy,The first International conference on technological application of materials,Setif

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  • 2024-10-26
  • 2024-10-26

    Ductility behaviour of a ternary transition metal nitride alloys: a first-principles study

    Ductility behaviour of a ternary transition metal nitride alloys: a first-principles study

    Citation

    MOHAMED Benhamida , riadh guendouz , ,(2024-10-26), Ductility behaviour of a ternary transition metal nitride alloys: a first-principles study,International Seminar on Materials and Engineering Structures (ISMES’2024),RELIZANE

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