Colloidal Process of Magnesia-Carbon Refractory and Its Sintering Characteristic

Li Hua Xu; Zhi Fei Cheng; Fang Lian; Ti Zhuang Wang; Yun Yao

doi:10.4028/www.scientific.net/KEM.280-283.1675

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Indentation Size Effect in the Nanohardness of Soda-Lime Glass
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Study on Corrosion Mechanism of CAS Glass-Ceramic to Refractories by EPMA
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Study of Thermal Shock Resistance of Sagger Plate Used in Floppy Magnets Sintering
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Preparation and Characterization of Al₂O₃ Coated Graphite Powders
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Colloidal Process of Magnesia-Carbon Refractory and Its Sintering Characteristic
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Effect of CaO Content and Microstructure on Hydration Resistance of MgO-CaO Clinkers
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β-SiAlON Bonded Corundum Material and Its Application as Sliding Gate Plate for Continuous Casting
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Corrosion Behavior of BF Slag to SiAlON Bonded Corundum Refractories
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 280-283Colloidal Process of Magnesia-Carbon Refractory...

Colloidal Process of Magnesia-Carbon Refractory and Its Sintering Characteristic

Abstract:

Carbon-containing refractories are widely used in metallurgical industry due to their excellent thermal property and resistance to corrosion by molten iron. In the present work, slip casting colloidal process, which is used to fabricate high performance structural ceramics, has been introduced into the preparation for magnesia-carbon refractory with selection of suitable dispersant. The results indicated that the curve of zeta-potential of magnesia was similar with that of carbon just containing dispersant and the homogenized mixtures were attained under a controlling of low pH value. Three kinds of preparing routes for green bodies were designed, and all of the final densities and the resultant hardness of sintered bodies using colloidal process were superior to these of the specimen using conventional dry pressing, whereas its high green density can be plausibly observed in dry pressing body because of high compaction pressure used.

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Periodical:

Key Engineering Materials (Volumes 280-283)

Pages:

1675-1678

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.280-283.1675

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Online since:

February 2007

Authors:

Li Hua Xu, Zhi Fei Cheng, Fang Lian, Ti Zhuang Wang, Yun Yao

Keywords:

Colloidal Process, Density, Magnesia-Carbon Refractory, Zeta-Potential

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