Effects of Zr element on the microstructure and mechanical properties of B4C/Al composites fabricated by melt stirring method

Kai, Xizhou; Wu, Lin; Peng, Yanjie; Tan, Zhanqiu; Li, Gui-Rong; Chen, Gang; Xu, Xiaojing; Li, Zhiqiang; Zhao, Yutao

doi:10.1016/j.compositesb.2021.109156

Cited by 21 publications

(2 citation statements)

References 32 publications

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“…The foaming method is to add a certain proportion of organic substances such as water-reducing agent, binder, or dispersant to the prepared ceramic slurry, and generate a large number of bubbles through a chemical reaction, mechanical foaming, etc., and then natural drying combined with hot air drying, after sintering at a specific temperature to obtain porous ceramic products [ 14 – 16 ]. The preparation process is shown in Figure 2 .…”

Section: Literature Reviewmentioning

confidence: 99%

Preparation of Porous Ceramic Building Decoration Materials by Foaming Method and Research on Nanomechanical Properties

Zhang

2022

International Journal of Analytical Chemistry

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Because of its excellent properties, mullite porous ceramics are widely used in thermal insulation materials, catalyst carriers, gas-liquid filtration, separation materials, etc. At the same time, zirconia not only has the advantages of high melting point, good chemical stability, and high strength but also can significantly improve the strength of ceramics through phase transformation and particle dispersion in the matrix and is widely used in the reinforcement of ceramics. In this paper, using mullite powder as the raw material, Al2O3 and SiO2/ZrSiO4 as the starting material for the mullite self-bonding phase, and AlF3·3H2O, ZrO2, and Y2O3 as additives, the zirconia-reinforced mullite was prepared by the foaming-injection method. The volume density, linear shrinkage rate, microstructure, room temperature, etc. of nanozirconia-reinforced mullite porous ceramics were studied by the amount of the foaming agent, the amount of mullite self-bonding phase powder, the type and amount of additives, etc. Effects of mechanical properties and thermal conductivity were also analyzed. The research results show that zirconia-reinforced mullite porous ceramics were prepared with mullite powder and 6 wt% AlF3·3H2O as raw materials, and ZrO2 and Y2O3 as additives. Adding an appropriate amount of ZrO2 and Y2O3 can significantly improve the mechanical properties of porous ceramics. When ZrO2 is 6 wt% and Y2O3 is 8 wt%, the porosity is 66.4% and the flexural strength and compressive strength of porous ceramics with a large pore size of 168 μm can reach 14.3 MPa and 36.3 MPa, respectively, which are obviously better than the strength of mullite porous ceramics without adding Y2O3 (flexural strength 11.3 MPa, nanocompressive strength 29.4 MPa).

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Section: Literature Reviewmentioning

confidence: 99%

Preparation of Porous Ceramic Building Decoration Materials by Foaming Method and Research on Nanomechanical Properties

Zhang

2022

International Journal of Analytical Chemistry

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“…In addition, Rahoma et al (2015) studied the effect of heat treatment on the microstructure and mechanical properties of in-situ matrix composites and found that the ductility of matrix composites could be enhanced by increasing the aging temperatures. Kai et al (2021) studied the effects of Zr on the microstructure and mechanical properties of B 4 C/Al composites and pointed out that the addition of Zr could promote the wettability of the composite as well as the uniform distribution of the particles. To improve the dispersity of in situ particles in the matrix effectively, some external physical fields, such as electromagnetic and ultrasonic fields, were used during the preparation of the in-situ particle reinforced aluminum composites (Kai et al, 2016;Kai et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Aluminum Matrix Composites Reinforced With In-Situ TiB2 Particles

Zeng

Hao

et al. 2022

Front. Mater.

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The present article investigates the microstructure and mechanical properties of A356 matrix composite reinforced with TiB2 particles synthesized by the salt metal reaction of as-cast and T6 state. Microscopic observations of the prepared composites reveal that in-situ grown TiB2 particles are characterized with regular shapes and nearly uniform distributed in the A356 matrix. A clear interface between the A356 matrix and TiB2 particles was observed. The detailed analysis of mechanical properties of synthesized composites of as-cast and T6 state show that the ultimate tensile strength and Young’s modulus of the synthesized composites increased with the increasing weight percentage (wt%) of in-situ TiB2 particles in the A356 matrix, but the Poisson’s ratio of the synthesized composites decreased with the increase of TiB2 particles wt%. The Young’s modulus of the composites increased by up to 10.8% and the Poisson’s ratio decreased by up to 3.2% with the increase of TiB2 particles wt%, compared to A356 alloy. With the increase of TiB2 particle wt%, the yield strength of the composites decreased at first (when the TiB2 particle wt% is less than 1%) then increased, while elongation and percent reduction in area increased at first and then decreased. Furthermore, T6 heat treatment can refine grain and effectively improve the mechanical properties of composites.

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Recent Research on the Optimization of Interfacial Structure and Interfacial Interaction Mechanisms of Metal Matrix Composites: A Review

Zhong,

Jiang,

Sun

et al. 2024

Adv Eng Mater

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Interfaces in metal matrix composites (MMCs) are crucial in determining the mechanical properties and functionality of MMCs. This article reviews recent scientific advances and issues related to MMC interfaces from four different perspectives: interfacial structural design, interfacial defect control, thermodynamics and kinetics of interfacial reactions, and interfacial microstructure properties‐based numerical simulation. The influence of interfacial microstructural features on interfacial strength–toughness trade‐offs and their functionality is given special attention. The interfacial problem is still one of the main challenges to be solved in the composite system, which is mainly reflected in the following aspects: interfacial microstructure–deformation mechanisms in complex systems, precise control of interfacial defects and interfacial reaction products, and the efficient and cost‐effective application of numerical simulation techniques. The integrated computation and intelligent design (artificial intelligence) of composites through multiscale computational simulation with the guidance of “interface design‐property prediction” will be the key area of MMC interface research in the future.

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Effects of Zr element on the microstructure and mechanical properties of B4C/Al composites fabricated by melt stirring method

Cited by 21 publications

References 32 publications

Preparation of Porous Ceramic Building Decoration Materials by Foaming Method and Research on Nanomechanical Properties

Preparation of Porous Ceramic Building Decoration Materials by Foaming Method and Research on Nanomechanical Properties

Microstructure and Mechanical Properties of Aluminum Matrix Composites Reinforced With In-Situ TiB2 Particles

Recent Research on the Optimization of Interfacial Structure and Interfacial Interaction Mechanisms of Metal Matrix Composites: A Review

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