{"title":"Evolution of structure and properties in oxyfluorogallate glasses upon incorporation of Al3+ ions","authors":"Zaiyang Wang, Yukun Tu, Longfei Zhang, Linjia Hu, Long Zhang, Yiguang Jiang, Guoying Zhao, Yongzheng Fang","doi":"10.1111/jace.70122","DOIUrl":null,"url":null,"abstract":"<p>Oxyfluorogallate glasses exhibit remarkable mid-infrared transmission properties, making them ideal for various advanced applications, such as environmental monitoring, gas sensing, space communications, and biomedical diagnostics. However, thermal instability, poor moisture resistance, and poor mechanical strength hinder the development and application of oxyfluorogallate glasses. In this research, by progressively replacing Ga<sub>2</sub>O<sub>3</sub> with Al<sub>2</sub>O<sub>3</sub>, the optimized glass system exhibits remarkable thermal stability with a glass transition temperature window (Δ<i>T</i>) reaching 205°C. This significantly improved chemical durability evidenced by normalized elemental leaching rates reduced below 80% of oxyfluorogallate and superior mechanical properties, including a Knoop hardness of 643.4 kg•N/mm<sup>2</sup> and bending strength of 124.5 MPa, which is comparable to the level of quartz glass.</p>","PeriodicalId":200,"journal":{"name":"Journal of the American Ceramic Society","volume":"108 12","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the American Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.70122","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
Oxyfluorogallate glasses exhibit remarkable mid-infrared transmission properties, making them ideal for various advanced applications, such as environmental monitoring, gas sensing, space communications, and biomedical diagnostics. However, thermal instability, poor moisture resistance, and poor mechanical strength hinder the development and application of oxyfluorogallate glasses. In this research, by progressively replacing Ga2O3 with Al2O3, the optimized glass system exhibits remarkable thermal stability with a glass transition temperature window (ΔT) reaching 205°C. This significantly improved chemical durability evidenced by normalized elemental leaching rates reduced below 80% of oxyfluorogallate and superior mechanical properties, including a Knoop hardness of 643.4 kg•N/mm2 and bending strength of 124.5 MPa, which is comparable to the level of quartz glass.
期刊介绍：
The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials.
Papers on fundamental ceramic and glass science are welcome including those in the following areas:
Enabling materials for grand challenges[...]
Materials design, selection, synthesis and processing methods[...]
Characterization of compositions, structures, defects, and properties along with new methods [...]
Mechanisms, Theory, Modeling, and Simulation[...]
JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.
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