Glass ceramics of high hardness and fracture toughness developed from steel fly ash

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	Glass ceramics of high hardness and fracture toughness developed from steel fly ash
	A. R. Boccaccini; W. X. Han; C. Dimech; R. D. Rawlings
	2006
发表期刊	Materials Science and Technology
ISSN	0267-0836
卷号	22 期号:10 页码:1148-1154
摘要	A study has been carried out on the feasibility of using a high iron content fly ash, generated during steel making, as a raw material for glass ceramic production. The fly ash was mixed in different proportions with soda-lime glass cullet and sand. The devitrification of the parent glasses produced from the different mixtures was investigated using differential thermal analysis, X-ray diffraction and scanning electron microscopy. The mechanical properties of the glass-ceramics were assessed by hardness and indentation fracture toughness measurements. A glass ceramic with composition of 60 wt-% fly ash, 25 wt-% sand and 15 wt-% glass cullet and containing magnetite in a marked dendritic morphology exhibited the best combination of properties, namely, hardness 7(.)9 GPa and fracture toughness 3(.)75 MPam(0.5). These new hard glass-ceramics are proposed for wear resistant tiles and paving for heavy duty industrial floors. In powder form, the glass ceramics are candidate materials for blasting and abrasion applications.
部门归属	univ london imperial coll sci technol & med, dept mat, london sw7 2az, england. cas, inst met res, shenyang 110016, peoples r china.;boccaccini, ar (reprint author), univ london imperial coll sci technol & med, dept mat, london sw7 2az, england;a.boccaccini@imperial.ac.uk
关键词	Glass Ceramics Fly Ash Vitrification Mechanical Properties Hardness Iron-rich Glasses Industrial-wastes Coal Ash Crystallization Vitrification Incinerator Dusts
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WOS记录号	WOS:000241906600002
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34130
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	A. R. Boccaccini,W. X. Han,C. Dimech,et al. Glass ceramics of high hardness and fracture toughness developed from steel fly ash[J]. Materials Science and Technology,2006,22(10):1148-1154.
APA	A. R. Boccaccini,W. X. Han,C. Dimech,&R. D. Rawlings.(2006).Glass ceramics of high hardness and fracture toughness developed from steel fly ash.Materials Science and Technology,22(10),1148-1154.
MLA	A. R. Boccaccini,et al."Glass ceramics of high hardness and fracture toughness developed from steel fly ash".Materials Science and Technology 22.10(2006):1148-1154.