Densely packed glass structure caused by seven-coordinated Zr in high elastic modulus Al2O3–SiO2–ZrO2 glasses

IF 8.3 1区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Acta Materialia Pub Date : 2024-11-06 DOI:10.1016/j.actamat.2024.120549
Atsunobu Masuno , Yuki Mikami , Yutaka Yanaba , Yuji Higo , Shunta Sasaki , Io Sato , Toyonari Yaji , Gustavo A. Rosales-Sosa , Hiroyuki Inoue
{"title":"Densely packed glass structure caused by seven-coordinated Zr in high elastic modulus Al2O3–SiO2–ZrO2 glasses","authors":"Atsunobu Masuno ,&nbsp;Yuki Mikami ,&nbsp;Yutaka Yanaba ,&nbsp;Yuji Higo ,&nbsp;Shunta Sasaki ,&nbsp;Io Sato ,&nbsp;Toyonari Yaji ,&nbsp;Gustavo A. Rosales-Sosa ,&nbsp;Hiroyuki Inoue","doi":"10.1016/j.actamat.2024.120549","DOIUrl":null,"url":null,"abstract":"<div><div>Al<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub>–ZrO<sub>2</sub> ternary glasses were fabricated using a levitation technique. The addition of ZrO<sub>2</sub> to the Al<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> glasses strongly affected their thermal, mechanical, and structural properties. Several compositions were partially vitrified at the laser-melted area without levitation although their melting required temperatures higher than 2000 °C. With increasing ZrO<sub>2</sub> content, the elastic moduli linearly increased, and the 50Al<sub>2</sub>O<sub>3</sub>–20SiO<sub>2</sub>–30ZrO<sub>2</sub> glass exhibited a Young′s modulus of 166 GPa and Vickers hardness <em>H</em><sub>V</sub> of 10.6 GPa. Conversely, crack resistance significantly decreased with the addition of ZrO<sub>2</sub>. Density measurements, Zr <em>L</em><sub>2,3</sub>-edge and <em>K</em>-edge X-ray absorption fine structure analyses, and <sup>27</sup>Al and <sup>29</sup>Si magic-angle spinning nuclear magnetic resonance spectroscopy were performed to investigate the local structure around Zr, Al, and Si in the glasses. Zr formed distorted ZrO<sub>7</sub> as in monoclinic ZrO<sub>2</sub>, which has been rarely found in conventional oxide glasses. The highly oxygen-coordinated Al atoms such as AlO<sub>5</sub> and AlO<sub>6</sub>, were the main components in the glasses rather than AlO<sub>4</sub>. The majority of Si atoms form SiO<sub>4</sub> with four bridging oxygen (Q<sup>4</sup>). Among the four bridging oxygens, the number of oxygens connected to Al or Zr clearly increased with decreasing SiO<sub>2</sub> content. The high packing density of the ternary glasses that resulted in high elastic moduli originated from the highly oxygen-coordinated Zr and Al and their close bonding with SiO<sub>4</sub> without generating nonbridging oxygens.</div></div>","PeriodicalId":238,"journal":{"name":"Acta Materialia","volume":"283 ","pages":"Article 120549"},"PeriodicalIF":8.3000,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Materialia","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359645424008978","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

Al2O3–SiO2–ZrO2 ternary glasses were fabricated using a levitation technique. The addition of ZrO2 to the Al2O3–SiO2 glasses strongly affected their thermal, mechanical, and structural properties. Several compositions were partially vitrified at the laser-melted area without levitation although their melting required temperatures higher than 2000 °C. With increasing ZrO2 content, the elastic moduli linearly increased, and the 50Al2O3–20SiO2–30ZrO2 glass exhibited a Young′s modulus of 166 GPa and Vickers hardness HV of 10.6 GPa. Conversely, crack resistance significantly decreased with the addition of ZrO2. Density measurements, Zr L2,3-edge and K-edge X-ray absorption fine structure analyses, and 27Al and 29Si magic-angle spinning nuclear magnetic resonance spectroscopy were performed to investigate the local structure around Zr, Al, and Si in the glasses. Zr formed distorted ZrO7 as in monoclinic ZrO2, which has been rarely found in conventional oxide glasses. The highly oxygen-coordinated Al atoms such as AlO5 and AlO6, were the main components in the glasses rather than AlO4. The majority of Si atoms form SiO4 with four bridging oxygen (Q4). Among the four bridging oxygens, the number of oxygens connected to Al or Zr clearly increased with decreasing SiO2 content. The high packing density of the ternary glasses that resulted in high elastic moduli originated from the highly oxygen-coordinated Zr and Al and their close bonding with SiO4 without generating nonbridging oxygens.

Abstract Image

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
高弹性模量 Al2O3-SiO2-ZrO2 玻璃中七配位 Zr 造成的致密玻璃结构
利用悬浮技术制造了 Al2O3-SiO2-ZrO2 三元玻璃。在 Al2O3-SiO2 玻璃中添加 ZrO2 对其热性能、机械性能和结构性能有很大影响。尽管熔化所需的温度高于 2000°C,但有几种成分在激光熔化区域部分玻璃化,而无需悬浮。随着 ZrO2 含量的增加,弹性模量呈线性增长,50Al2O3-20SiO2-30ZrO2 玻璃的杨氏模量为 166 GPa,维氏硬度 HV 为 11 GPa。相反,抗裂性随着 ZrO2 的添加而明显下降。为了研究玻璃中围绕 Zr、Al 和 Si 的局部结构,我们进行了密度测定、Zr L2,3-edge 和 K-edge X 射线吸收精细结构分析,以及 27Al 和 29Si 魔角旋转核磁共振波谱分析。锆在单斜 ZrO2 中形成了扭曲的 ZrO7,这在传统的氧化物玻璃中很少见。玻璃中的主要成分是高度氧配位的铝原子,如 AlO5 和 AlO6,而不是 AlO4。大部分硅原子与四个桥接氧(Q4)形成 SiO4。在四个桥接氧中,与 Al 或 Zr 连接的氧的数量明显随着二氧化硅含量的降低而增加。三元玻璃的高堆积密度导致了高弹性模量,这源于高度氧配位的 Zr 和 Al 以及它们与 SiO4 的紧密结合,而不会产生非桥氧。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Acta Materialia
Acta Materialia 工程技术-材料科学:综合
CiteScore
16.10
自引率
8.50%
发文量
801
审稿时长
53 days
期刊介绍: Acta Materialia serves as a platform for publishing full-length, original papers and commissioned overviews that contribute to a profound understanding of the correlation between the processing, structure, and properties of inorganic materials. The journal seeks papers with high impact potential or those that significantly propel the field forward. The scope includes the atomic and molecular arrangements, chemical and electronic structures, and microstructure of materials, focusing on their mechanical or functional behavior across all length scales, including nanostructures.
期刊最新文献
Effect of leakage current on magnetoelectric effect of 0-3 multiferroic composites based on an equivalent circuit model Suppressing embrittlement and enhancing thermal resistance of bulk superlattice alloys by controllable grain-boundary segregation Behavior of Fe-Based Alloys in a Liquid Lead-Bismuth Environment under Simultaneous Proton Irradiation and Corrosion Spatially confined magnetic shape-memory Heuslers: implications for nanoscale devices Short-range order in ion irradiated fluorite structural derivatives in Sc2O3-HfO2
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1