{"title":"Investigating sulfur valence depth profile on float glass surfaces using electron probe microanalysis and stepwise etching","authors":"Yoshitaka Saijo, Susumu Harako","doi":"10.1016/j.jnoncrysol.2024.123282","DOIUrl":null,"url":null,"abstract":"<div><div>This study introduces a novel method that significantly improves the understanding of sulfur behavior during the float process, which is a key factor for achieving high-quality glass surfaces. We established and demonstrated a novel approach that combines an optimized electron probe micro-analyzer with a stepwise etching technique for obtaining detailed depth profiling of sulfur concentrations as well as the average valence of sulfur on the surfaces of a float glass sample. The average valence of sulfur from each side of the float glass mirrored each other, exhibiting lower values near the surfaces and higher values internally. A reduced layer extending up to approximately 5 μm on both sides was also present. On the atmosphere side, the reduced layer transitioned abruptly to the oxidized layer. In contrast, the tin side featured an intermediate redox layer, where the sulfur valence gradually increased. We proposed two mechanisms for the formation of this intermediate layer: an inward sulfide diffusion, and an oxidation–reduction reaction involving Sn<sup>2+</sup> penetrated from the tin bath.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"647 ","pages":"Article 123282"},"PeriodicalIF":3.2000,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Non-crystalline Solids","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022309324004587","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
This study introduces a novel method that significantly improves the understanding of sulfur behavior during the float process, which is a key factor for achieving high-quality glass surfaces. We established and demonstrated a novel approach that combines an optimized electron probe micro-analyzer with a stepwise etching technique for obtaining detailed depth profiling of sulfur concentrations as well as the average valence of sulfur on the surfaces of a float glass sample. The average valence of sulfur from each side of the float glass mirrored each other, exhibiting lower values near the surfaces and higher values internally. A reduced layer extending up to approximately 5 μm on both sides was also present. On the atmosphere side, the reduced layer transitioned abruptly to the oxidized layer. In contrast, the tin side featured an intermediate redox layer, where the sulfur valence gradually increased. We proposed two mechanisms for the formation of this intermediate layer: an inward sulfide diffusion, and an oxidation–reduction reaction involving Sn2+ penetrated from the tin bath.
期刊介绍:
The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid.
In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.