M. Yu. Konon, I. G. Polyakova, A. S. Saratovskii, D. P. Danilovich, I. N. Anfimova
{"title":"Crystallization of Sodium Borosilicate Glass with the Addition of Cr2O3","authors":"M. Yu. Konon, I. G. Polyakova, A. S. Saratovskii, D. P. Danilovich, I. N. Anfimova","doi":"10.1134/S1087659622601083","DOIUrl":null,"url":null,"abstract":"<p>Glass composition of 6Na<sub>2</sub>O 22B<sub>2</sub>O<sub>3</sub>·70SiO<sub>2</sub>·2Cr<sub>2</sub>O<sub>3</sub> is studied by scanning electron microscopy, X‑ray powder diffractometry (XRPD), and differential thermal analysis, depending on the duration of heat treatment at a temperature of 550°C. It is established that during heat treatment for 24–96 h, a phase separation structure with interpenetrating phases is formed in the studied glass, and a crystalline phase of eskolaite—Cr<sub>2</sub>O<sub>3</sub> is also formed. With the maximum heat treatment duration of 96 h, cristobalite is formed in the bulk of the glass, which is accompanied by a decrease in the glass transition temperature of the low-viscosity phase. In this case, the intensity of eskolaite peaks decreases. Cr<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> crystallize apparently due to the substance of the low-viscosity phase.</p>","PeriodicalId":580,"journal":{"name":"Glass Physics and Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2023-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Glass Physics and Chemistry","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1087659622601083","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 2
Abstract
Glass composition of 6Na2O 22B2O3·70SiO2·2Cr2O3 is studied by scanning electron microscopy, X‑ray powder diffractometry (XRPD), and differential thermal analysis, depending on the duration of heat treatment at a temperature of 550°C. It is established that during heat treatment for 24–96 h, a phase separation structure with interpenetrating phases is formed in the studied glass, and a crystalline phase of eskolaite—Cr2O3 is also formed. With the maximum heat treatment duration of 96 h, cristobalite is formed in the bulk of the glass, which is accompanied by a decrease in the glass transition temperature of the low-viscosity phase. In this case, the intensity of eskolaite peaks decreases. Cr2O3 and SiO2 crystallize apparently due to the substance of the low-viscosity phase.
期刊介绍:
Glass Physics and Chemistry presents results of research on the inorganic and physical chemistry of glass, ceramics, nanoparticles, nanocomposites, and high-temperature oxides and coatings. The journal welcomes manuscripts from all countries in the English or Russian language.