{"title":"Na2O 和 CaCl2 对 CaO-MgO-Al2O3-SiO2 玻璃陶瓷的结晶和机械特性的影响","authors":"Hong-Yang Wang, Yu Li, Shu-Qiang Jiao, Guo-Hua Zhang","doi":"10.1007/s40831-024-00819-0","DOIUrl":null,"url":null,"abstract":"<p>In this paper, we respectively added 5 wt% of Na<sub>2</sub>O and CaCl<sub>2</sub> to the CaO–MgO–Al<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> base glass, aiming to analyze the effect of the types of flux, CaCl<sub>2</sub>, and traditional flux Na<sub>2</sub>O, on the crystallization behavior and mechanical properties of the sintered glass–ceramics. Besides, 1 wt% of Cr<sub>2</sub>O<sub>3</sub> was added as the nucleating agent to form the Cr-spinel nucleus and promote the bulk crystallization. The CaCl<sub>2</sub>-bearing glass–ceramics (GC-Cl) showed lower porosity and crystallinity compared with the Na<sub>2</sub>O-bearing glass–ceramics (GC-Na). After sintering at 950 °C for 1 h, the bending strength, Vickers hardness, and fracture toughness of GC-Cl were 163 MPa, 6.9 GPa, and 2.4 MPa·m<sup>1/2</sup>, respectively, while they are 191 MPa, 8.2 GPa, and 2.3 MPa·m<sup>1/2</sup> for the GC-Na. Although the bending strength and hardness of GC-Cl are lower than that of GC-Na, adding CaCl<sub>2</sub> as a flux may provide a route for the comprehensive utilization of CaCl<sub>2</sub>-bearing wastes.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\n","PeriodicalId":17160,"journal":{"name":"Journal of Sustainable Metallurgy","volume":"33 1","pages":""},"PeriodicalIF":2.5000,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effects of Na2O and CaCl2 on the Crystallization and Mechanical Properties of CaO-MgO-Al2O3-SiO2 Glass–Ceramics\",\"authors\":\"Hong-Yang Wang, Yu Li, Shu-Qiang Jiao, Guo-Hua Zhang\",\"doi\":\"10.1007/s40831-024-00819-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>In this paper, we respectively added 5 wt% of Na<sub>2</sub>O and CaCl<sub>2</sub> to the CaO–MgO–Al<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> base glass, aiming to analyze the effect of the types of flux, CaCl<sub>2</sub>, and traditional flux Na<sub>2</sub>O, on the crystallization behavior and mechanical properties of the sintered glass–ceramics. Besides, 1 wt% of Cr<sub>2</sub>O<sub>3</sub> was added as the nucleating agent to form the Cr-spinel nucleus and promote the bulk crystallization. The CaCl<sub>2</sub>-bearing glass–ceramics (GC-Cl) showed lower porosity and crystallinity compared with the Na<sub>2</sub>O-bearing glass–ceramics (GC-Na). After sintering at 950 °C for 1 h, the bending strength, Vickers hardness, and fracture toughness of GC-Cl were 163 MPa, 6.9 GPa, and 2.4 MPa·m<sup>1/2</sup>, respectively, while they are 191 MPa, 8.2 GPa, and 2.3 MPa·m<sup>1/2</sup> for the GC-Na. Although the bending strength and hardness of GC-Cl are lower than that of GC-Na, adding CaCl<sub>2</sub> as a flux may provide a route for the comprehensive utilization of CaCl<sub>2</sub>-bearing wastes.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical Abstract</h3>\\n\",\"PeriodicalId\":17160,\"journal\":{\"name\":\"Journal of Sustainable Metallurgy\",\"volume\":\"33 1\",\"pages\":\"\"},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-04-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Sustainable Metallurgy\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1007/s40831-024-00819-0\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sustainable Metallurgy","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1007/s40831-024-00819-0","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Effects of Na2O and CaCl2 on the Crystallization and Mechanical Properties of CaO-MgO-Al2O3-SiO2 Glass–Ceramics
In this paper, we respectively added 5 wt% of Na2O and CaCl2 to the CaO–MgO–Al2O3–SiO2 base glass, aiming to analyze the effect of the types of flux, CaCl2, and traditional flux Na2O, on the crystallization behavior and mechanical properties of the sintered glass–ceramics. Besides, 1 wt% of Cr2O3 was added as the nucleating agent to form the Cr-spinel nucleus and promote the bulk crystallization. The CaCl2-bearing glass–ceramics (GC-Cl) showed lower porosity and crystallinity compared with the Na2O-bearing glass–ceramics (GC-Na). After sintering at 950 °C for 1 h, the bending strength, Vickers hardness, and fracture toughness of GC-Cl were 163 MPa, 6.9 GPa, and 2.4 MPa·m1/2, respectively, while they are 191 MPa, 8.2 GPa, and 2.3 MPa·m1/2 for the GC-Na. Although the bending strength and hardness of GC-Cl are lower than that of GC-Na, adding CaCl2 as a flux may provide a route for the comprehensive utilization of CaCl2-bearing wastes.
期刊介绍：
Journal of Sustainable Metallurgy is dedicated to presenting metallurgical processes and related research aimed at improving the sustainability of metal-producing industries, with a particular emphasis on materials recovery, reuse, and recycling. Its editorial scope encompasses new techniques, as well as optimization of existing processes, including utilization, treatment, and management of metallurgically generated residues. Articles on non-technical barriers and drivers that can affect sustainability will also be considered.
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