改性C/C复合材料上SiCnw-(ZrC-SiC)集成涂层的长时间烧蚀行为

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-09-01 DOI:10.1016/j.ceramint.2025.06.278

Xinfa Tian , Li Yang , Hejun Li , Xiaohong Shi , Hongjiao Lin

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引用次数: 0

摘要

采用前驱体浸渍热解法（PIP）实现了涂层与改性基体的一体化成型。在改性C/C复合材料上制备的SiCnw-(ZrC-SiC)集成涂层经过5 × 120s的烧蚀后，平均质量烧蚀速率仅为0.60 mg/s。经过3个周期的烧蚀后，材料表面的涂层刚刚剥落。此外，经过5次循环烧蚀后，在基体表面仍有一层由ZrO2-SiO2组成的保护层。结果表明，涂层/基体复合改性能有效提高材料的抗热震性，延长材料的烧蚀寿命。

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Long-time ablation behaviors of SiCnw-(ZrC-SiC) integrated coating on modified C/C composites

The integrated molding of the coating and modified matrix was achieved by the precursor impregnation and pyrolysis (PIP) method. The average mass ablation rate of the prepared SiCnw-(ZrC-SiC) integrated coating on modified C/C composite material is only 0.60 mg/s after 5 × 120 s of ablation. The coating on the surface of the material is just exfoliated after 3 cycles of ablation. Additionally, there is still a protective layer formed by ZrO₂-SiO₂ on the surface of the matrix after 5 cycles of ablation. The results demonstrate that the integrated coating/matrix-modification is successful in enhancing thermal shock resistance and prolonging ablation life of the material.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.