High infrared radiation heat control coating, preparation method and application thereof
By spraying NiCrAlY alloy and Al2O3/MgO composite ceramic powder onto the surface of spacecraft, a high infrared radiation thermal control coating was constructed, which solved the problems of stability and performance degradation of existing coatings in the space environment and achieved excellent infrared radiation heat dissipation and structural stability.
CN122406142APending Publication Date: 2026-07-17WUHAN UNIV OF TECH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUHAN UNIV OF TECH
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-17
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Figure CN122406142A_ABST
Abstract
本发明提供了一种高红外辐射热控涂层及其制备方法和应用，涉及功能涂层技术领域。该方法首先通过喷雾造粒技术制备Al2O3 / MgO复合团聚陶瓷粉末，随后在预处理后的基体表面依次沉积NiCr金属粘结层和Al2O3 / MgO功能层。本发明提供的方法工艺参数可控、成本低廉且适合复杂构件的大面积施工；所获得的涂层与基体结合力强，且具有不大于0.850的中红外发射率，能够有效实现航天器精密部件在极端太空环境下的被动热管理与稳定运行。
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