What question did this study set out to answer?

Investigate the structural stability, electronic, mechanical, thermodynamic, and optical properties of novel o-MAX phases Mo2AAlC2 (A = Zr, Nb, Ta) to assess their potential as thermal barrier coatings.

August 16, 2026ACS OmegaOpen Access

DFT Insights intoo-MAX Phases, Mo2AAlC2 (A = Zr, Nb, Ta):Potential Candidates for ThermalBarrier Coating Applications

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Authors

ITIspat Tanim MHM. M. Hossain MUM. M. Uddin

Discussion

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Overview

Computational modeling reveals high thermal stability and low thermal conductivity in Mo2AAlC2 MAX phases, indicating strong potential for thermal barrier coatings.

Key Points

Investigate the structural stability, electronic, mechanical, thermodynamic, and optical properties of novel o-MAX phases Mo2AAlC2 (A = Zr, Nb, Ta) to assess their potential as thermal barrier coatings.
Performed first-principles density functional theory (DFT) calculations and ab initio molecular dynamics (AIMD) simulations.
Assessed thermodynamic, electronic, and mechanical properties via formation energies, phonon dispersion curves, density of states, and stiffness coefficients.
Confirmed mechanical and dynamic stability alongside metallic electronic behavior for all three phases, with Pugh and Poisson ratios confirming brittle characteristics.
Calculated high melting temperatures and Debye temperatures paired with low lattice thermal conductivity suppressed by strong high-temperature phonon scattering.
Demonstrated optical reflectivity above 44%, highlighting suitability for mitigating solar heating in aerospace structures.

Cite This Study

Tanim et al. (2026) studied this question.

synapsesocial.com/papers/6a817a72f2fb91fc834ae4a6 https://doi.org/10.1021/acsomega.6c02558

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August 16, 2026ACS OmegaOpen Access

DFT Insights intoo-MAX Phases, Mo2AAlC2 (A = Zr, Nb, Ta):Potential Candidates for ThermalBarrier Coating Applications

View Full Paper

Ask AI

Bookmark

Authors

ITIspat Tanim MHM. M. Hossain MUM. M. Uddin

Discussion

Member takes

Overview

Computational modeling reveals high thermal stability and low thermal conductivity in Mo2AAlC2 MAX phases, indicating strong potential for thermal barrier coatings.

Key Points

Investigate the structural stability, electronic, mechanical, thermodynamic, and optical properties of novel o-MAX phases Mo2AAlC2 (A = Zr, Nb, Ta) to assess their potential as thermal barrier coatings.
Performed first-principles density functional theory (DFT) calculations and ab initio molecular dynamics (AIMD) simulations.
Assessed thermodynamic, electronic, and mechanical properties via formation energies, phonon dispersion curves, density of states, and stiffness coefficients.
Confirmed mechanical and dynamic stability alongside metallic electronic behavior for all three phases, with Pugh and Poisson ratios confirming brittle characteristics.
Calculated high melting temperatures and Debye temperatures paired with low lattice thermal conductivity suppressed by strong high-temperature phonon scattering.
Demonstrated optical reflectivity above 44%, highlighting suitability for mitigating solar heating in aerospace structures.

Cite This Study

Tanim et al. (2026) studied this question.

synapsesocial.com/papers/6a817a72f2fb91fc834ae4a6 https://doi.org/10.1021/acsomega.6c02558

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