Structural origin of CaO-MgO-Al2O3-SiO2-Fe2O3 glass crystallization: Ironcontaining clusters

doi:10.1016/j.jnoncrysol.2020.120295

	Structural origin of CaO-MgO-Al2O3-SiO2-Fe2O3 glass crystallization: Ironcontaining clusters
	Zhao, Mingzhi 1; Cao, Jianwei 2,3; Geng, Xinhui 2; Song, Wenfeng 2; Wang, Zhi 2
刊名	JOURNAL OF NON-CRYSTALLINE SOLIDS
	2020-11-01
卷号	547 页码:8
关键词	CMASF glass-ceramics Iron-rich glass Crystallization Iron-containing clusters Spinel
ISSN号	0022-3093
DOI	10.1016/j.jnoncrysol.2020.120295
英文摘要	The crystallization tendency resulting from liquid-liquid separation in CaO-MgO-Al2O3-SiO2-Fe2O3 glass-ceramic has attracted much attention. However, the structural origin of this effect is still poorly understood. In this paper, spectroscopies were used to analyze the silicon-oxygen network structure of the basic glass with different iron oxide contents. With a focus on the microenvironment of iron atoms, the isolated iron was converted to clusters as the Fe2O3 content increased. Based on the above findings, two iron-containing cluster structures that affect the glass stability and crystallization potential are proposed. Liquid-liquid phase separation was clearly observed by transmission electron microscopy. Thermal analysis proved that the increase in the formation of clusters weakened the glass stability. This study not only provided data for understanding the exceptional microstructure of CaO-MgO-Al2O3-SiO2-Fe2O3 glass but also yielded profound insights into the metastability of glass-ceramics.
资助项目	National Key R&D Program of China[2018YFC1901806]
WOS关键词	IRON-RICH GLASS ; RAMAN-SPECTRA ; FE2O3 ; CERAMICS ; VITRIFICATION ; STATE ; BEHAVIOR ; CR2O3
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000572116800002
资助机构	National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/42215]
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.China Energy Conservat & Environm Protect Grp, Beijing 100082, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 3.ZhongkeLangfang Inst Proc Engn, Langfang Econ & Tech Dev Zone, Fenghua Rd 1, Langfang, Hebei, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Mingzhi,Cao, Jianwei,Geng, Xinhui,et al. Structural origin of CaO-MgO-Al2O3-SiO2-Fe2O3 glass crystallization: Ironcontaining clusters[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2020,547:8.
APA	Zhao, Mingzhi,Cao, Jianwei,Geng, Xinhui,Song, Wenfeng,&Wang, Zhi.(2020).Structural origin of CaO-MgO-Al2O3-SiO2-Fe2O3 glass crystallization: Ironcontaining clusters.JOURNAL OF NON-CRYSTALLINE SOLIDS,547,8.
MLA	Zhao, Mingzhi,et al."Structural origin of CaO-MgO-Al2O3-SiO2-Fe2O3 glass crystallization: Ironcontaining clusters".JOURNAL OF NON-CRYSTALLINE SOLIDS 547(2020):8.