{"title":"Foam stabilization of Mg-3Ca alloys using TiB2 particles","authors":"Akshay Devikar , G.S. Vinod Kumar","doi":"10.1016/j.mseb.2025.118830","DOIUrl":null,"url":null,"abstract":"<div><div>This study demonstrates the stabilization of Mg-3Ca foams by ex-situ addition of TiB<sub>2</sub> particles (<em>D</em><sub><em>50</em></sub> = 8.045 μm) as effective agents to enhance foam morphology and stability. TiB<sub>2</sub> additions (3 and 5 vol%) delayed cell coarsening and preserved higher circularity by increasing melt viscosity. While Mg-3Ca foams contracted during prolonged foaming (5–15 min), TiB<sub>2</sub>-containing foams retained and even enhanced their expansion, achieving volumes of 625 % and 652 % compared to 566 % for the base alloy. A single-film stabilization model revealed thicker and smoother films (130 μm to 323 μm) with reduced oxide accumulation in the presence of TiB<sub>2</sub> particles, highlighting their role in enhancing foam longevity. Quasi-static compression tests indicated that higher TiB<sub>2</sub> content introduced serrated deformation, slightly reducing energy absorption. These findings advance our understanding of particle-stabilized Mg foams, offering new opportunities for lightweight, high-performance materials</div></div>","PeriodicalId":18233,"journal":{"name":"Materials Science and Engineering: B","volume":"323 ","pages":"Article 118830"},"PeriodicalIF":4.6000,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science and Engineering: B","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921510725008542","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
This study demonstrates the stabilization of Mg-3Ca foams by ex-situ addition of TiB2 particles (D50 = 8.045 μm) as effective agents to enhance foam morphology and stability. TiB2 additions (3 and 5 vol%) delayed cell coarsening and preserved higher circularity by increasing melt viscosity. While Mg-3Ca foams contracted during prolonged foaming (5–15 min), TiB2-containing foams retained and even enhanced their expansion, achieving volumes of 625 % and 652 % compared to 566 % for the base alloy. A single-film stabilization model revealed thicker and smoother films (130 μm to 323 μm) with reduced oxide accumulation in the presence of TiB2 particles, highlighting their role in enhancing foam longevity. Quasi-static compression tests indicated that higher TiB2 content introduced serrated deformation, slightly reducing energy absorption. These findings advance our understanding of particle-stabilized Mg foams, offering new opportunities for lightweight, high-performance materials
期刊介绍:
The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.