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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2026, Vol. 45 ›› Issue (5): 1709-1726.DOI: 10.16552/j.cnki.issn1001-1625.2025.1036

• Ceramics • Previous Articles     Next Articles

Research Progress of Porous Ceramic Materials for Transpiration Cooling

JIANG Li(), WANG Honglei(), ZHOU Xingui, YU Jinshan   

  1. Science and Technology on Advanced Ceramic Fibers and Composites Laboratory,College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China
  • Received:2025-10-27 Revised:2025-12-06 Online:2026-05-15 Published:2026-06-10
  • Contact: WANG Honglei

Abstract:

Hypersonic vehicles face severe thermal protection challenges under extreme service conditions, where traditional passive thermal protection technologies struggle to meet the demands for long-term, reusable thermal management requirements. Transpiration cooling is an efficient active thermal protection technology. Porous media materials used for transpiration cooling need to possess characteristics such as high-temperature resistance, lightweight, and high permeability. Porous ceramic materials for transpiration cooling, with their low density, high specific surface area, excellent high-temperature oxidation resistance, and low thermal expansion coefficient, have emerged as ideal candidate materials. This article systematically reviews the working principles and advantages of transpiration cooling technology, focusing on the performance characteristics and main preparation methods(including template replication method, partial sintering method, pore-forming agent addition method, direct foaming method, and additive manufacturing) of porous ceramics. It compares the advantages and disadvantages of different methods and highlights the current challenges in balancing high porosity with mechanical properties, achieving complex structural shaping, and precisely controlling gradient porosity. Finally, this article outlines future research directions, such as precise pore structure regulation and the construction of multiphase ceramic systems, to promote the industrial application of these materials in aerospace thermal protection.

Key words: porous ceramics, hypersonic vehicle, transpiration cooling, pore structure, thermal protection system

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