Shrinkage-controlled hydrothermal carbon: An advanced interphase for achieving synergistic stress dispersion and load transfer in Cf/ZrB2-SiC composites

IF 5.6 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS Ceramics International Pub Date : 2025-02-01 DOI:10.1016/j.ceramint.2024.11.482

Huan Yang , Cheng Fang , Hongliang Xu , Xia Zhang , Yang Liu , Jiayin Zhao , Anzhe Wang , Hongxia Lu , Hailong Wang

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Abstract

Controlled shrinkage of hydrothermal carbon coating (HTCC) during its carbonization preparation process offers a novel strategy for optimizing the interfacial properties of fiber-reinforced ceramic matrix materials. In this study, the effect of volumetric shrinkage in monolayer or bilayer HTCC on the interface characteristics and mechanical properties of C_f/ZrB₂-SiC composites is investigated. The bilayer HTCC significantly enhances the crack deflection effect within the interphase compared to the monolayer HTCC. By precisely controlling the shrinkage of the layers of the bilayer HTCC, an innovative C/SiC/C trilayer interphase was synthesized in situ during the polymer infiltration process for preparing the C_f/ZrB₂-SiC composites, which synergistically enhances stress dispersion and load transfer efficiency within the interface. The work of fracture for C_f/ZrB₂-SiC composites modified by the trilayer interphase has been significantly elevated to 2258 J/m², which far exceeds the 129 J/m² measured for the composites lacking a HTCC interphase.

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收缩控制水热碳：Cf/ZrB2-SiC复合材料中实现协同应力分散和负载传递的高级界面相

水热炭涂层在炭化制备过程中的收缩控制为优化纤维增强陶瓷基材料的界面性能提供了一种新的策略。在本研究中，研究了单层或双层HTCC体积收缩对Cf/ZrB2-SiC复合材料界面特性和力学性能的影响。与单层HTCC相比，双层HTCC显著增强了界面内的裂纹挠曲效应。在制备Cf/ZrB2-SiC复合材料的聚合物渗透过程中，通过精确控制双层HTCC层的收缩，原位合成了一种新型的C/SiC/C三层界面相，从而协同提高了界面内的应力分散和载荷传递效率。经三层界面相改性的Cf/ZrB2-SiC复合材料的断裂功显著提高到2258 J/m2，远远超过了缺乏HTCC界面相的复合材料的129 J/m2。

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阿拉丁

polyethyleneimine

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polyvinyl butyral

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.