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高韧性AlMgB材料的制备与性能

Preparation and Properties of High-Toughness AlMgB Material.

作者信息

Sun Tianxing, Luo Zhaohua, Duan Yusen, Zhang Jingxian

机构信息

University of Chinese Academy of Sciences, Beijing 100049, China.

The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.

出版信息

Nanomaterials (Basel). 2025 May 19;15(10):764. doi: 10.3390/nano15100764.

DOI:10.3390/nano15100764
PMID:40423154
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12114079/
Abstract

This study employed a composite method using TiB-HfC dual-component additive to prepare AlMgB ceramic composite material. The morphology and phase composition of the AlMgB 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 AlMgB-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, a bending strength of 615 MPa, and a density of 3.22 g/cm. Additionally, a solid solution second phase was observed in the AlMgB material. Through a dual-component synergistic composite strategy, this study enhanced the toughness of AlMgB material without significantly compromising other properties, providing a new design approach for the development of low-cost, high-performance AlMgB-based composites.

摘要

本研究采用复合方法，使用TiB-HfC双组分添加剂制备AlMgB陶瓷复合材料。利用扫描电子显微镜（SEM）和X射线衍射仪（XRD）对AlMgB陶瓷粉末的形貌和相组成进行了表征。研究了烧结复合材料的相演变、微观结构和力学性能。实验结果表明，在1450℃烧结的AlMgB基复合材料表现出优异的综合性能，维氏硬度为25.3 GPa，断裂韧性为6.9 MPa·m，弯曲强度为615 MPa，密度为3.22 g/cm。此外，在AlMgB材料中观察到了固溶体第二相。通过双组分协同复合策略，本研究在不显著影响其他性能的情况下提高了AlMgB材料的韧性，为开发低成本、高性能的AlMgB基复合材料提供了一种新的设计方法。

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本文引用的文献

1
High-Temperature Oxidation Behavior of TiB-HfB-Ni Cermet Material.TiB-HfB-Ni金属陶瓷材料的高温氧化行为
Materials (Basel). 2022 Dec 12;15(24):8860. doi: 10.3390/ma15248860.
2
Experimental and Theoretical Study of Ultra-Hard AlMgB-TiB Composites: Structure, Hardness and Self-Lubricity.超硬AlMgB-TiB复合材料的实验与理论研究：结构、硬度和自润滑性
Materials (Basel). 2022 Nov 27;15(23):8450. doi: 10.3390/ma15238450.
3
On the Tensile Strength of Spark Plasma Sintered AlMgB Ceramics.关于放电等离子烧结AlMgB陶瓷的拉伸强度
Nanomaterials (Basel). 2022 Oct 28;12(21):3805. doi: 10.3390/nano12213805.
4
On the Structure and Properties of AlMgB-TiB Composites Obtained from SHS Powders by Spark Plasma Sintering.通过放电等离子烧结由自蔓延高温合成粉末制备的AlMgB-TiB复合材料的结构与性能
Materials (Basel). 2021 Sep 24;14(19):5521. doi: 10.3390/ma14195521.
5
Effects of HfB₂ and HfN Additions on the Microstructures and Mechanical Properties of TiB₂-Based Ceramic Tool Materials.添加HfB₂和HfN对TiB₂基陶瓷刀具材料微观结构及力学性能的影响
Materials (Basel). 2017 Apr 27;10(5):461. doi: 10.3390/ma10050461.