Long-term oxidation behavior of ZrB2-SiC-B4C ceramics: Oxidation kinetics and mechanism at 1650 °C

IF 5.5 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Materials Characterization Pub Date : 2025-09-09 DOI:10.1016/j.matchar.2025.115555

Binghui Zhang , Yongsheng Liu , Yunlei Lv , Shaolin Fu , Yejie Cao

引用次数: 0

Abstract

ZrB₂-SiC-B₄C ceramics were fabricated via reactive melt infiltration (RMI), and their long-term oxidation behavior at 1650 °C was systematically investigated. The oxidation followed a parabolic law, indicative of a diffusion-controlled process. After an initially high oxidation rate, the weight gain stabilized at 0.066 mg/(cm²·h) and the oxide layer growth rate reached 0.202 μm/h during the 50–100 h stage. ZrSiO₄ was formed in situ in the SiO₂ layer, effectively pinning the SiO₂ oxide layer and inhibiting further oxygen diffusion. The synergistic formation of borosilicate glass further enhanced oxidation resistance. These findings highlight the excellent high-temperature stability and long-term oxidation resistance of ZrB₂-SiC-B₄C ceramics, making them promising for extreme environment applications.

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ZrB2-SiC-B4C陶瓷的长期氧化行为：1650℃氧化动力学及机理

采用反应熔体渗透法制备了ZrB2-SiC-B4C陶瓷，并对其在1650℃下的长期氧化行为进行了系统研究。氧化过程遵循抛物线规律，表明是扩散控制的过程。经过最初的高氧化速率后，在50-100 h阶段，增重稳定在0.066 mg/(cm2·h)，氧化层生长速率达到0.202 μm/h。ZrSiO4在SiO2层中原位形成，有效地钉住了SiO2氧化层，抑制了氧的进一步扩散。硼硅玻璃的协同形成进一步增强了抗氧化性。这些发现突出了ZrB2-SiC-B4C陶瓷优异的高温稳定性和长期抗氧化性，使其在极端环境中应用前景广阔。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Characterization 工程技术-材料科学：表征与测试

CiteScore

7.60

自引率

8.50%

发文量

746

审稿时长

36 days

期刊介绍： Materials Characterization features original articles and state-of-the-art reviews on theoretical and practical aspects of the structure and behaviour of materials. The Journal focuses on all characterization techniques, including all forms of microscopy (light, electron, acoustic, etc.,) and analysis (especially microanalysis and surface analytical techniques). Developments in both this wide range of techniques and their application to the quantification of the microstructure of materials are essential facets of the Journal. The Journal provides the Materials Scientist/Engineer with up-to-date information on many types of materials with an underlying theme of explaining the behavior of materials using novel approaches. Materials covered by the journal include: Metals & Alloys Ceramics Nanomaterials Biomedical materials Optical materials Composites Natural Materials.