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Development of Waste-Containing Malayaite Ceramic Pigments
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Ceramic Brick with High Water Retentivity Prepared from Ceramic Waste and by Products
p.2235
On the Plasticity of Clay Mixtures with Bauxite Residue of the Bayer Process
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Next Generation Carbon-Containing Refractory Composites
p.2246
Mineralizing Spinel Formation with Boron-Containing Compounds
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Particle Distribution Design in a Self-Flow Alumina Refractory Castable without Cement
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Next Generation Carbon-Containing Refractory Composites

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Abstract:

Carbon-containing refractory bricks are used extensively in the steel industry worldwide. Since the first generation became commercially available in the 1970’s, their processing, microstructures and properties have been improved dramatically, and the service lives of industrial furnaces have thus been extended substantially. In addition to the work on carboncontaining refractory bricks, much effort has been, and is being, made worldwide towards the development of carbon-containing refractory castables. In this paper, the latest R & D towards new generation carboncontaining refractory bricks as well as carbon-containing refractory castables have been highlighted. In the first part, current techniques used to improve mechanical properties of carbon-containing refractory bricks are summarised. A new concept using a catalytic-growth technique to create insitu oxide nanofibres and/or carbon nanotubes in carbon-containing refractory bricks is introduced. The second part addresses some important technical issues of low carbon carbon-containing refractory bricks. Besides the concern about thermal shock resistance, other new problems arising from the use of nanosized carbon, such as the accelerated MgO-C reaction and carbon oxidation, are discussed. In the final part of the paper, technical difficulties hindering the development of carbon-containing castables as well as measures to overcome them are discussed. A novel molten salt synthesis technique developed recently at Sheffield to prepare high quality carbide coatings on graphite is introduced.

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Periodical:

Advances in Science and Technology (Volume 45)

Pages:

2246-2253

DOI:

https://doi.org/10.4028/www.scientific.net/AST.45.2246

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Online since:

October 2006

Authors:

Shao Wei Zhang

Keywords:

Aluminum (Al), Antioxidant, Carbide, Carbon, Castables, Coating, Hydration, Magnesia, Nanotube, Oxidation, Refractory

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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