{"title":"不同CaO/SiO2质量比含ti高炉渣基玻璃陶瓷的结晶行为与性能","authors":"Xin Feng, Feifei Lai, Jiangling Li, Qingcai Liu, Shan Ren, Jian Yang","doi":"10.1007/s41779-022-00719-0","DOIUrl":null,"url":null,"abstract":"<div><p>The effect of CaO/SiO<sub>2</sub> ratio on the crystallization behaviors, mechanical properties, and acid and alkali resistance properties of the prepared Ti-bearing blast furnace slag-based glass ceramics were investigated. The results showed that the crystallization temperature obviously decreased with the increase of CaO/SiO<sub>2</sub> ratio, and the higher CaO/SiO<sub>2</sub> ratios leaded to stronger crystallization ability. The main crystal phases transformed from CaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub> and CaMgSi<sub>2</sub>O<sub>6</sub> to CaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>, CaMgSi<sub>2</sub>O<sub>6</sub>, and Ca<sub>2</sub>MgSi<sub>2</sub>O<sub>7</sub> as the CaO/SiO<sub>2</sub> ratio increased from 0.3 to 0.6. When the CaO/SiO<sub>2</sub> increased to 0.5, a small amount of akermanite precipitated. The vickers hardness gradually decreased, and the flexural strength first increased and then decreased with an increased CaO/SiO<sub>2</sub>. The glass ceramic with CaO/SiO<sub>2</sub> = 0.5 exhibited the highest flexural strength of 109.58 MPa. The prepared glass ceramics showed good acid and alkali resistance (> 98.30%), especially alkali resistance. Therefore, the best candidate for CaO/SiO<sub>2</sub> ratio in the investigated Ti-bearing blast furnace slag-based glass ceramics was selected as 0.5. This work can provide the reference for preparation slag-based glass ceramics.</p></div>","PeriodicalId":49042,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"58 2","pages":"597 - 605"},"PeriodicalIF":1.9000,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Crystallization behaviors and properties of Ti-bearing blast furnace slag-based glass ceramics with varying CaO/SiO2 mass ratio\",\"authors\":\"Xin Feng, Feifei Lai, Jiangling Li, Qingcai Liu, Shan Ren, Jian Yang\",\"doi\":\"10.1007/s41779-022-00719-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The effect of CaO/SiO<sub>2</sub> ratio on the crystallization behaviors, mechanical properties, and acid and alkali resistance properties of the prepared Ti-bearing blast furnace slag-based glass ceramics were investigated. The results showed that the crystallization temperature obviously decreased with the increase of CaO/SiO<sub>2</sub> ratio, and the higher CaO/SiO<sub>2</sub> ratios leaded to stronger crystallization ability. The main crystal phases transformed from CaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub> and CaMgSi<sub>2</sub>O<sub>6</sub> to CaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>, CaMgSi<sub>2</sub>O<sub>6</sub>, and Ca<sub>2</sub>MgSi<sub>2</sub>O<sub>7</sub> as the CaO/SiO<sub>2</sub> ratio increased from 0.3 to 0.6. When the CaO/SiO<sub>2</sub> increased to 0.5, a small amount of akermanite precipitated. The vickers hardness gradually decreased, and the flexural strength first increased and then decreased with an increased CaO/SiO<sub>2</sub>. The glass ceramic with CaO/SiO<sub>2</sub> = 0.5 exhibited the highest flexural strength of 109.58 MPa. The prepared glass ceramics showed good acid and alkali resistance (> 98.30%), especially alkali resistance. Therefore, the best candidate for CaO/SiO<sub>2</sub> ratio in the investigated Ti-bearing blast furnace slag-based glass ceramics was selected as 0.5. This work can provide the reference for preparation slag-based glass ceramics.</p></div>\",\"PeriodicalId\":49042,\"journal\":{\"name\":\"Journal of the Australian Ceramic Society\",\"volume\":\"58 2\",\"pages\":\"597 - 605\"},\"PeriodicalIF\":1.9000,\"publicationDate\":\"2022-02-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of the Australian Ceramic Society\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s41779-022-00719-0\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Materials Science\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of the Australian Ceramic Society","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s41779-022-00719-0","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Materials Science","Score":null,"Total":0}
Crystallization behaviors and properties of Ti-bearing blast furnace slag-based glass ceramics with varying CaO/SiO2 mass ratio
The effect of CaO/SiO2 ratio on the crystallization behaviors, mechanical properties, and acid and alkali resistance properties of the prepared Ti-bearing blast furnace slag-based glass ceramics were investigated. The results showed that the crystallization temperature obviously decreased with the increase of CaO/SiO2 ratio, and the higher CaO/SiO2 ratios leaded to stronger crystallization ability. The main crystal phases transformed from CaAl2Si2O8 and CaMgSi2O6 to CaAl2Si2O8, CaMgSi2O6, and Ca2MgSi2O7 as the CaO/SiO2 ratio increased from 0.3 to 0.6. When the CaO/SiO2 increased to 0.5, a small amount of akermanite precipitated. The vickers hardness gradually decreased, and the flexural strength first increased and then decreased with an increased CaO/SiO2. The glass ceramic with CaO/SiO2 = 0.5 exhibited the highest flexural strength of 109.58 MPa. The prepared glass ceramics showed good acid and alkali resistance (> 98.30%), especially alkali resistance. Therefore, the best candidate for CaO/SiO2 ratio in the investigated Ti-bearing blast furnace slag-based glass ceramics was selected as 0.5. This work can provide the reference for preparation slag-based glass ceramics.
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