Ti3SiC2/Cu 复合材料在 Ti 和 Cu 原子迁移下的高温抗氧化行为

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

Ceramics International Pub Date : 2024-09-22 DOI:10.1016/j.ceramint.2024.09.293

Rui Zhang , Huiming Zhang , Fuyan Liu , Miao Sun , Shuai Ma

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引用次数: 0

摘要

采用恒温氧化法研究了 Ti3SiC2/Cu 复合材料的氧化行为和氧化机理。在不同的烧结温度下制备了 Ti3SiC2/Cu 复合材料。结果表明，Ti3SiC2/Cu 复合材料在 700 ℃-900 ℃空气中的氧化反应速率与氧化温度之间的关系符合氧化动力学抛物线规律。Ti3SiC2/Cu 复合材料在 700 ℃ 和 800 ℃ 时的氧化增重和氧化层厚度不明显，氧化反应速率分别为 3.0692 × 10-9 kg2m-4h-1 和 6.9856 × 10-9 kg2m-4h-1，而 Ti3SiC2/Cu 复合材料在 900 ℃ 时的氧化速率提高到 1.00907 × 10-8 kg2m-4h-1。在 900 °C 下氧化的 Ti3SiC2/Cu 复合材料形成了保护氧化层，主要是由不同种类的氧化物组成的多层结构：外层主要由 TiO2 组成；中间层主要由 CuO 组成；内层主要由 TiO2 和 SiO2 组成。

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High temperature oxidation resistance behavior of Ti3SiC2/Cu composites under migration of Ti and Cu atomic

The oxidation behavior and oxidation mechanism of Ti₃SiC₂/Cu composites were investigated using constant temperature oxidation method. The Ti₃SiC₂/Cu composites were prepared at different sintering temperatures. Results showed that the relationship between the oxidation reaction rate of Ti₃SiC₂/Cu composites in air at 700 °C–900 °C and the oxidation temperature was in accordance with the parabolic law of oxidation kinetics. The oxidation weight gain and oxide layer thickness of Ti₃SiC₂/Cu composites at 700 °C and 800 °C were insignificant, with oxidation reaction rates of 3.0692 × 10⁻⁹ kg²m⁻⁴h⁻¹ and 6.9856 × 10⁻⁹ kg²m⁻⁴h⁻¹, respectively, and the oxidation rate of Ti₃SiC₂/Cu composites at 900 °C was enhanced to 1.00907 × 10⁻⁸ kg²m⁻⁴h⁻¹. Ti₃SiC₂/Cu composites oxidized at 900 °C formed a protective oxide layer, which was mainly a multilayer structure composed of different kinds of oxides: the outer layer was mainly composed of TiO₂; the intermediate layer mainly consisted of CuO; the inner layer mainly made up of TiO₂ and SiO₂.

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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.