Preparation and Properties of High-Toughness AlMgB₁₄ Material.

IF 4.4 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Nanomaterials Pub Date : 2025-05-19 DOI:10.3390/nano15100764

Tianxing Sun, Zhaohua Luo, Yusen Duan, Jingxian Zhang

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Abstract

This study employed a composite method using TiB₂-HfC dual-component additive to prepare AlMgB₁₄ ceramic composite material. The morphology and phase composition of the AlMgB₁₄ ceramic powder were characterized using scanning electron microscopy (SEM) and an X-ray diffractometer (XRD). The phase evolution, microstructure, and mechanical properties of the sintered composite were investigated. The experimental results indicate that the AlMgB₁₄-based composite sintered at 1450 °C exhibited excellent comprehensive properties, with a Vickers hardness of 25.3 GPa, a fracture toughness of 6.9 MPa·m^1/2, a bending strength of 615 MPa, and a density of 3.22 g/cm³. Additionally, a solid solution second phase was observed in the AlMgB₁₄ material. Through a dual-component synergistic composite strategy, this study enhanced the toughness of AlMgB₁₄ material without significantly compromising other properties, providing a new design approach for the development of low-cost, high-performance AlMgB₁₄-based composites.

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高韧性AlMgB14材料的制备及性能研究

本研究采用复合方法，采用TiB2-HfC双组分添加剂制备AlMgB14陶瓷复合材料。采用扫描电子显微镜（SEM）和x射线衍射仪（XRD）对AlMgB14陶瓷粉末的形貌和相组成进行了表征。研究了烧结后复合材料的相演化、显微组织和力学性能。实验结果表明，1450℃烧结的almgb14基复合材料具有优异的综合性能，维氏硬度为25.3 GPa，断裂韧性为6.9 MPa·m1/2，抗弯强度为615 MPa，密度为3.22 g/cm3。此外，在AlMgB14材料中观察到固溶体第二相。本研究通过双组分协同复合策略，在不显著影响其他性能的情况下增强了AlMgB14材料的韧性，为开发低成本、高性能的AlMgB14基复合材料提供了一种新的设计方法。

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来源期刊

Nanomaterials NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

8.50

自引率

9.40%

发文量

3841

审稿时长

14.22 days

期刊介绍： Nanomaterials (ISSN 2076-4991) is an international and interdisciplinary scholarly open access journal. It publishes reviews, regular research papers, communications, and short notes that are relevant to any field of study that involves nanomaterials, with respect to their science and application. Thus, theoretical and experimental articles will be accepted, along with articles that deal with the synthesis and use of nanomaterials. Articles that synthesize information from multiple fields, and which place discoveries within a broader context, will be preferred. There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental or methodical details, or both, must be provided for research articles. Computed data or files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. Nanomaterials is dedicated to a high scientific standard. All manuscripts undergo a rigorous reviewing process and decisions are based on the recommendations of independent reviewers.