Selective controlled precipitation mechanism of canasite and xonotlite in glass-ceramics from silica slag
文献类型：期刊论文
| 作者 | Geng, Xinhui2,3; Cao, Jianwei1,3; Wang, Zhi3; Lu, Jinshan2 |
| 刊名 | JOURNAL OF NON-CRYSTALLINE SOLIDS
 |
| 出版日期 | 2020-10-15 |
| 卷号 | 546页码:10 |
| 关键词 | Silicon slag Canasite Xonotlite Q(n) unit Controlling precipitation mechanism |
| ISSN号 | 0022-3093 |
| DOI | 10.1016/j.jnoncrysol.2020.120283 |
| 英文摘要 | In this paper, Na2O-CaO-SiO2-X(NCSX) glass-ceramics was prepared to use industrial silicon slag as the main raw material. We employed XRD, FTIR and NMR to analyze the influence of Na2O/SiO2 on the composition of microstructure units Qn in the glass-ceramics. It revealed the precipitation mechanism of xonotlite and canasite. Spectroscopy study indicated that sodium atoms could selectively destroy the glass network to form Q(3) units while silicon atoms could rebuild the network to form Q(4) units. Q(3) units can combine with calcium atoms to form Si-O-Ca bonds that generated the precipitation of xonotlite phase. However, Si-O-Si bond wrapped the Si-O-Ca bond to form an interlayer structure in canasite crystal. And the effective method for controlling the formation of canasite crystal was adopted cautiously. That is, synergistic regulation of Na2O/SiO2 and heat treatment to precipitate the canasite phase exclusively. |
| WOS关键词 | SOLID-STATE NMR ; CRYSTAL-STRUCTURE ; CRYSTALLIZATION ; FURNACE ; ALUMINA ; SODIUM ; B-11 |
| 资助项目 | National Key R&D Program of China[2018YFC1901806] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000567816900005 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key R&D Program of China |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/42059]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Cao, Jianwei; Wang, Zhi |
| 作者单位 | 1.ZhongkeLangfang Inst Proc Engn, Fenghua Rd 1, Langfang 065000, Hebei, Peoples R China 2.Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Jiangxi, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Geng, Xinhui,Cao, Jianwei,Wang, Zhi,et al. Selective controlled precipitation mechanism of canasite and xonotlite in glass-ceramics from silica slag[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2020,546:10. |
| APA | Geng, Xinhui,Cao, Jianwei,Wang, Zhi,&Lu, Jinshan.(2020).Selective controlled precipitation mechanism of canasite and xonotlite in glass-ceramics from silica slag.JOURNAL OF NON-CRYSTALLINE SOLIDS,546,10. |
| MLA | Geng, Xinhui,et al."Selective controlled precipitation mechanism of canasite and xonotlite in glass-ceramics from silica slag".JOURNAL OF NON-CRYSTALLINE SOLIDS 546(2020):10. |
入库方式： OAI收割
来源：过程工程研究所
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