{"title":"Study of the Processes of Non-Stoichiometric Compositions Based on CsSiB3O7","authors":"E. S. Derkacheva, D. S. Ershov","doi":"10.1134/S1087659624600704","DOIUrl":null,"url":null,"abstract":"<p>In the Cs<sub>2</sub>O–B<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> system, samples with different stoichiometric ratios of Cs<sub>2</sub>O : B<sub>2</sub>O<sub>3</sub> : SiO<sub>2</sub>—1 : 3 : 2 (CsSiB<sub>3</sub>O<sub>7</sub>) and 1.25 : 2.5 : 2—were obtained by solid-phase reactions. The phase formation of cesium borosilicate СsSiB<sub>3</sub>O<sub>7</sub> was studied. In samples with a stoichiometric ratio of 1 : 3 : 2, CsSiB<sub>3</sub>O<sub>7</sub> crystallizes with impurities of kirchhoffite and CsB<sub>3</sub>O<sub>5</sub> at 680°C. At 750°C, melting is observed with the formation of cubic boropollucite CsBSi<sub>2</sub>O<sub>6</sub>. In samples of nonstoichiometric composition, Cs<sub>2</sub>B<sub>4</sub>SiO<sub>9</sub> crystallizes at 680°C along with CsB<sub>3</sub>O<sub>5</sub>. With an increase in temperature to 750°C, only boropollucite is formed.</p>","PeriodicalId":580,"journal":{"name":"Glass Physics and Chemistry","volume":"50 3","pages":"323 - 327"},"PeriodicalIF":0.6000,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Glass Physics and Chemistry","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1087659624600704","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: 0
Abstract
In the Cs2O–B2O3–SiO2 system, samples with different stoichiometric ratios of Cs2O : B2O3 : SiO2—1 : 3 : 2 (CsSiB3O7) and 1.25 : 2.5 : 2—were obtained by solid-phase reactions. The phase formation of cesium borosilicate СsSiB3O7 was studied. In samples with a stoichiometric ratio of 1 : 3 : 2, CsSiB3O7 crystallizes with impurities of kirchhoffite and CsB3O5 at 680°C. At 750°C, melting is observed with the formation of cubic boropollucite CsBSi2O6. In samples of nonstoichiometric composition, Cs2B4SiO9 crystallizes at 680°C along with CsB3O5. With an increase in temperature to 750°C, only boropollucite is formed.
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.
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