Work

Preparation and Properties of High-Toughness AlMgB14 Material

Year: 2025

Type: article

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·m1/2, 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.

Source: Nanomaterials

DOI: 10.3390/nano15100764

Authors: Tianxing Sun, Zhaohua Luo, Yusen Duan, Jingxian Zhang

Institutions: Chinese Academy of Sciences, Shanghai Institute of Ceramics, University of Chinese Academy of Sciences, State Key Laboratory of High Performance Ceramics and Superfine Microstructure

Language: English

Topic: Advanced ceramic materials synthesis

Subfield: Ceramics and Composites

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

Funder: National Key Research and Development Program of China