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Related Experiment Video

Updated: Jan 17, 2026

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Bulk and Thin Film Synthesis of Compositionally Variant Entropy-stabilized Oxides

Published on: May 29, 2018

Entropy-Driven Multiphase Engineering Enables Superior Broadband Infrared Emissivity in High-Entropy Oxides.

Chun Wang^1,2, Ge-Ting Sun^1,2, Cheng-Yu He¹

¹Key Laboratory of Energy Conservation and Energy Storage Materials of Gansu Province, Research Center of Resource Chemistry and Energy Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.

Advanced Materials (Deerfield Beach, Fla.)

|September 16, 2025

Summary

This summary is machine-generated.

This study introduces a novel strategy using high-entropy spinel oxides for efficient infrared thermal management. The developed materials exhibit stable, broadband emissivity crucial for industrial and aerospace applications.

Keywords:

bandgap modulation high‐entropy oxides infrared emissivity phase engineering radiative thermal management

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Last Updated: Jan 17, 2026

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Area of Science:

Materials Science
Nanotechnology
Thermodynamics

Background:

Efficient infrared (IR) thermal management is critical for industrial and aerospace sectors.
Current materials struggle with stable, broadband emissivity at high temperatures (0.78-16 µm).

Purpose of the Study:

To develop advanced materials for stable, broadband IR emissivity.
To investigate entropy-driven phase engineering in high-entropy spinel oxides for enhanced thermal management.

Main Methods:

Systematic La doping to control phase coexistence in spinel oxides.
Multi-scale structural and atomic-level analyses.
Characterization of IR emissivity and thermal stability up to 900 °C.

Main Results:

Achieved controlled coexistence of three crystalline phases via La doping.
Demonstrated synergistic enhancement of broadband IR emissivity (0.91 across 0.78-16 µm).
Materials retained high performance after prolonged exposure to 900 °C, with coatings reaching 0.95 emissivity.

Conclusions:

Entropy-driven phase engineering offers a pathway to superior IR thermal management materials.
The developed multiphase oxides integrate broadband high emissivity, thermal stability, and mechanical robustness.
Establishes a framework for next-generation radiative thermal management in extreme environments.