Engineering directional pore structures in YSZ ceramics for superior infrared reflectance
High-temperature infrared-regulating ceramics are essential for extreme-environment applications requiring broadband infrared reflection (1–6 μm), such as spacecraft thermal protection, military stealth systems, and related fields. Precise control of pore structures is crucial for enhancing ceramic...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2025-06-01
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| Series: | Journal of Advanced Ceramics |
| Subjects: | |
| Online Access: | https://www.sciopen.com/article/10.26599/JAC.2025.9221089 |
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| _version_ | 1849426220063653888 |
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| author | Jiawei Ma Yu Yang Chao Gao Zhuang Ma Muhammad Raheel Kamal Mustafa Yu Wu Lihong Gao |
| author_facet | Jiawei Ma Yu Yang Chao Gao Zhuang Ma Muhammad Raheel Kamal Mustafa Yu Wu Lihong Gao |
| author_sort | Jiawei Ma |
| collection | DOAJ |
| description | High-temperature infrared-regulating ceramics are essential for extreme-environment applications requiring broadband infrared reflection (1–6 μm), such as spacecraft thermal protection, military stealth systems, and related fields. Precise control of pore structures is crucial for enhancing ceramic infrared reflectance, as pores directly influence the scattering intensity and scattering path of radiation. However, achieving broadband reflectance above 0.9 remains challenging because of unclear pore‒radiation interaction mechanisms and insufficient structural control. This study employs optical simulations to systematically analyze how pore parameters enhance infrared reflectance. The results demonstrate that pore sizes matching the infrared wavelength, high aspect ratios, and aligned orientations synergistically enhance reflection. Guided by simulations, directional pore-structured yttria-stabilized zirconia (YSZ) ceramics were fabricated via a rolling extrusion method using graphite flakes as sacrificial templates. The optimized ceramics exhibited tailored pore parameters (size: 0.2–6 μm, aspect ratio: 3.2–3.9, orientation angle: < 30°), achieving exceptional infrared reflectance (> 0.9). This study clarifies pore‒radiation interactions and presents a scalable strategy to produce advanced thermal shielding materials. |
| format | Article |
| id | doaj-art-7d7c5948125a40fd8c0d8bc5d0abebeb |
| institution | Kabale University |
| issn | 2226-4108 2227-8508 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj-art-7d7c5948125a40fd8c0d8bc5d0abebeb2025-08-20T03:29:31ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082025-06-01146922108910.26599/JAC.2025.9221089Engineering directional pore structures in YSZ ceramics for superior infrared reflectanceJiawei Ma0Yu Yang1Chao Gao2Zhuang Ma3Muhammad Raheel4Kamal Mustafa5Yu Wu6Lihong Gao7School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaSchool of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, ChinaHigh-temperature infrared-regulating ceramics are essential for extreme-environment applications requiring broadband infrared reflection (1–6 μm), such as spacecraft thermal protection, military stealth systems, and related fields. Precise control of pore structures is crucial for enhancing ceramic infrared reflectance, as pores directly influence the scattering intensity and scattering path of radiation. However, achieving broadband reflectance above 0.9 remains challenging because of unclear pore‒radiation interaction mechanisms and insufficient structural control. This study employs optical simulations to systematically analyze how pore parameters enhance infrared reflectance. The results demonstrate that pore sizes matching the infrared wavelength, high aspect ratios, and aligned orientations synergistically enhance reflection. Guided by simulations, directional pore-structured yttria-stabilized zirconia (YSZ) ceramics were fabricated via a rolling extrusion method using graphite flakes as sacrificial templates. The optimized ceramics exhibited tailored pore parameters (size: 0.2–6 μm, aspect ratio: 3.2–3.9, orientation angle: < 30°), achieving exceptional infrared reflectance (> 0.9). This study clarifies pore‒radiation interactions and presents a scalable strategy to produce advanced thermal shielding materials.https://www.sciopen.com/article/10.26599/JAC.2025.9221089infrared reflectanceyttria-stabilized zirconia ceramics (ysz)directional pore structurehigh temperature |
| spellingShingle | Jiawei Ma Yu Yang Chao Gao Zhuang Ma Muhammad Raheel Kamal Mustafa Yu Wu Lihong Gao Engineering directional pore structures in YSZ ceramics for superior infrared reflectance Journal of Advanced Ceramics infrared reflectance yttria-stabilized zirconia ceramics (ysz) directional pore structure high temperature |
| title | Engineering directional pore structures in YSZ ceramics for superior infrared reflectance |
| title_full | Engineering directional pore structures in YSZ ceramics for superior infrared reflectance |
| title_fullStr | Engineering directional pore structures in YSZ ceramics for superior infrared reflectance |
| title_full_unstemmed | Engineering directional pore structures in YSZ ceramics for superior infrared reflectance |
| title_short | Engineering directional pore structures in YSZ ceramics for superior infrared reflectance |
| title_sort | engineering directional pore structures in ysz ceramics for superior infrared reflectance |
| topic | infrared reflectance yttria-stabilized zirconia ceramics (ysz) directional pore structure high temperature |
| url | https://www.sciopen.com/article/10.26599/JAC.2025.9221089 |
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