Jaime L. George, Pavel Ferkl, Jose Marcial, Tongan Jin, Pavel Hrma, Albert A. Kruger
{"title":"Glass transition temperature of low-activity waste nuclear glasses","authors":"Jaime L. George, Pavel Ferkl, Jose Marcial, Tongan Jin, Pavel Hrma, Albert A. Kruger","doi":"10.1111/ijag.16629","DOIUrl":null,"url":null,"abstract":"<p>The glass transition temperature (<i>T</i><sub>g</sub>) is a parameter used in many glass melt viscosity models as it denotes a temperature around which liquid-glass transition occurs. In this work, <i>T</i><sub>g</sub> values were measured for a series of low-activity waste (LAW) glasses using differential scanning calorimetry. These data were combined with <i>T</i><sub>g</sub> data of other waste glasses available from literature. The combined dataset, consisting of 137 data points, was used for the development of several models to estimate <i>T</i><sub>g</sub> from glass composition. When testing the number of influential components and different supervised learning methods, we demonstrated that using more than 10 components or using non-linear methods brought marginal improvement to the model accuracy. The best model predicts <i>T</i><sub>g</sub> of both LAW and high-level waste glasses with reasonable accuracy.</p>","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"14 3","pages":"399-407"},"PeriodicalIF":2.1000,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Applied Glass Science","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/ijag.16629","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 1
Abstract
The glass transition temperature (Tg) is a parameter used in many glass melt viscosity models as it denotes a temperature around which liquid-glass transition occurs. In this work, Tg values were measured for a series of low-activity waste (LAW) glasses using differential scanning calorimetry. These data were combined with Tg data of other waste glasses available from literature. The combined dataset, consisting of 137 data points, was used for the development of several models to estimate Tg from glass composition. When testing the number of influential components and different supervised learning methods, we demonstrated that using more than 10 components or using non-linear methods brought marginal improvement to the model accuracy. The best model predicts Tg of both LAW and high-level waste glasses with reasonable accuracy.
期刊介绍：
The International Journal of Applied Glass Science (IJAGS) endeavors to be an indispensable source of information dealing with the application of glass science and engineering across the entire materials spectrum. Through the solicitation, editing, and publishing of cutting-edge peer-reviewed papers, IJAGS will be a highly respected and enduring chronicle of major advances in applied glass science throughout this century. It will be of critical value to the work of scientists, engineers, educators, students, and organizations involved in the research, manufacture and utilization of the material glass. Guided by an International Advisory Board, IJAGS will focus on topical issue themes that broadly encompass the advanced description, application, modeling, manufacture, and experimental investigation of glass.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
