轻质多尺度 ZrO2-SiOC 涂层碳/酚醛复合材料具有更强的抗氧化性和耐烧蚀性

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-10-03 DOI:10.1016/j.ceramint.2024.10.018

Wei Gao, Yongzheng Zhang, Yanli Wang, Liang Zhan

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引用次数: 0

摘要

碳/酚复合材料被广泛认为是一种高效的烧蚀热保护材料，但其较差的抗氧化-烧蚀性能限制了其进一步的应用。在这项工作中，通过双阶段构建策略，制备了一种多尺度 ZrO2-SiOC 涂层碳/酚醛复合材料（NCF/ZSAx-PA）。制备的复合材料密度低（0.314-0.348 g/cm3），导热系数低（0.0605-0.0725 W/（m-k）），抗压强度高（Z/XY 方向为 2.95/5.08 MPa）。得益于 ZrO2-SiO2 陶瓷保护涂层的形成，多尺度复合材料表现出优异的抗氧化和烧蚀性能。1000 °C 时，NCF/ZSAx-PA 的残余重量为 19.41%，而未改性的碳/酚复合材料在空气环境下完全烧毁。此外，在 3.62 MW/m2 氧乙炔评估条件下，NCF/ZSAx-PA 表现出低背温（53.6 ℃）、低线性烧蚀率（0.0519 mm/s）和低质量损失率（0.0100 g/s）。所有这些优越性能使 NCF/ZSAx-PA 在热保护系统中得到了广泛应用。

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Lightweight and multiscale ZrO2-SiOC coated carbon/phenolic composites with enhanced oxidation and ablation resistance

The carbon/phenolic composites are extensively considered as an efficient ablative thermal protection material, but inferior oxidation-ablation resistance has limited their further application. In this work, a multiscale ZrO₂-SiOC coated carbon/phenolic composite (NCF/ZSAx-PA) was fabricated through a dual-stage construction strategy. The as-prepared composites exhibited a low density (0.314–0.348 g/cm³), low thermal conductivity (0.0605–0.0725 W/(m·k)) and promoted compressive strength (2.95/5.08 MPa in the Z/XY direction). Benefiting from the formation of a protective ZrO₂-SiO₂ ceramic coating, the multiscale composites showed excellent anti-oxidation and ablation performance. The residual weight of NCF/ZSAx-PA was 19.41 % at 1000 °C while the unmodified carbon/phenolic composites were entirely burnt off under an air atmosphere. Besides, the NCF/ZSAx-PA exhibited low back temperature (53.6 °C), low linear ablation rate (0.0519 mm/s), and low mass loss rate (0.0100 g/s) under the 3.62 MW/m² oxyacetylene assessment. All the superior properties enabled the NCF/ZSAx-PA a prospective application on the thermal protection system.

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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.