<trans-title xml:lang="en">Reaction Sintered Porous Ceramics Using Iron Tailings: Preparation and Properties</trans-title>

Songze WU; Yang ZHOU; Runfeng LI; Xiaoqian LIU; Cuiwei LI; Zhenying HUANG

doi:10.15541/jim20230065

Journal of Inorganic Materials, Volume. 38, Issue 10, 1193(2023)

Reaction Sintered Porous Ceramics Using Iron Tailings: Preparation and Properties

Songze WU1... Yang ZHOU1,*, Runfeng LI2, Xiaoqian LIU1, Cuiwei LI1 and Zhenying HUANG1 |Show fewer author(s)

¹1. Research Center of Rail Vehicles Safety Monitoring and Health Management, School of Mechanical and Electronic Control Engineering, Beijing Jiaotong University, Beijing 100044, China

²2. State Key Laboratory of Solid Waste Reuse for Building Materials, Beijing Building Materials Academy of Sciences Research, Beijing 100041, China

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Figures & Tables(8)

1. XRD patterns of iron tailings raw materials and test samples

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2. DSC-TG curves for (a) iron tailings and (b) iron tailing-graphite

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3. Macrostructures of porous ceramics

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4. (a, c, e, g) Fracture morphologies and (b, d, f, h) skeleton microstructures of porous ceramic Sample A, Sample B, Sample C, and Sample D

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5. Bulk density and apparent porosity of porous ceramics

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6. Compressive strengths and thermal conductivities of porous ceramics

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Table 1. Composition of iron tailings raw materials
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Table 1. Composition of iron tailings raw materials
Composition SiO₂ Fe₂O₃ MgO Al₂O₃ CaO K₂O Others
%(in mass) 61.03 13.49 7.75 7.53 6.7 1.71 1.79

Table 2. Composition, forming and sintering technology of porous ceramics prepared using iron tailings by different methods

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Table 2. Composition, forming and sintering technology of porous ceramics prepared using iron tailings by different methods

Sample	Iron tailings/%(in mass)	Graphite/%(in mass)	SiC/%(in mass)	Forming method	Sintering temperature	Holding time
A	100	-	-	Foam gelcasting	1090 ℃	3 h
B	75	25	-	Foam gelcasting	1600 ℃	3 h
C	48.7	16.3	35	Foam gelcasting	1600 ℃	3 h
D	71.3	23.8	5	Mold forming	1600 ℃	3 h

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Songze WU, Yang ZHOU, Runfeng LI, Xiaoqian LIU, Cuiwei LI, Zhenying HUANG. Reaction Sintered Porous Ceramics Using Iron Tailings: Preparation and Properties[J]. Journal of Inorganic Materials, 2023, 38(10): 1193

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