{"title":"In-situ fabrication of a strong and stiff MgAl2O4/Al-based composite","authors":"","doi":"10.1016/j.coco.2024.102115","DOIUrl":null,"url":null,"abstract":"<div><div>The Al-Mg-B₂O₃ composites were synthesized via a combination of ball-milling, sintering, and hot extrusion, with in-situ formed MgAl₂O₄ and MgAlB₄ particles distributing along grain boundaries. The Al-5Mg-10B₂O₃ composite demonstrated exceptional mechanical properties, including a yield strength of 535 MPa, ultimate tensile strength of 558 MPa, Young's modulus of 88.8 GPa, and a density of 2.84 g/cm<sup>3</sup>. The strengthening mechanisms were analyzed, with dislocation strengthening contributing most, primarily due to the formation of MgAl₂O₄ nanoparticles.</div></div>","PeriodicalId":10533,"journal":{"name":"Composites Communications","volume":null,"pages":null},"PeriodicalIF":6.5000,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Composites Communications","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2452213924003061","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
引用次数: 0
Abstract
The Al-Mg-B₂O₃ composites were synthesized via a combination of ball-milling, sintering, and hot extrusion, with in-situ formed MgAl₂O₄ and MgAlB₄ particles distributing along grain boundaries. The Al-5Mg-10B₂O₃ composite demonstrated exceptional mechanical properties, including a yield strength of 535 MPa, ultimate tensile strength of 558 MPa, Young's modulus of 88.8 GPa, and a density of 2.84 g/cm3. The strengthening mechanisms were analyzed, with dislocation strengthening contributing most, primarily due to the formation of MgAl₂O₄ nanoparticles.
期刊介绍：
Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
