Effect of TiO2 on the Thermal Conductivity of Eco-Friendly Silica Bricks Fabricated by Yellow River Silt

Jian Ying Yang; Li Hua Xu; Hong Shun Hao; Shu Ming Yang

doi:10.4028/www.scientific.net/MSF.610-613.206

Paper Titles

Study on the High Performance Coal Gangue Foam Concrete
p.185

Enhancement Corrosion Resistance of (3–Glycidoxylpropyl)- Silsesquioxane Hybrid Films and its Validation by Gas-Molecule Diffusion Coefficients Using MD Simulation
p.190

Modified PLA Carrier Material and its Performance in Immobilization of Nitrifying Bacteria
p.198

Effect of Electromagnetic Stirring on Tin Bronze Plate Blank
p.202

Effect of TiO₂ on the Thermal Conductivity of Eco-Friendly Silica Bricks Fabricated by Yellow River Silt
p.206

Preparation, Characterization and Oxidation Mechanism Study of Biomorphic Porous Carbon Coated with SiC Gradient Coating
p.211

Preparation of Titania Cloth Using Cellulose Fabric as the Template
p.215

Photocatalytic Degradation of Organic Dye on Sulfated Nanosize TiO₂ Sensitized by H₂O₂ under Visible irradiation
p.220

Synthesis of TiO₂ Nanorod-Assembled Microspheres from TiCl₃ and its Photocatalytic Activities
p.225

HomeMaterials Science ForumMaterials Science Forum Vols. 610-613Effect of TiO2 on the Thermal Conductivity of...

Effect of TiO₂ on the Thermal Conductivity of Eco-Friendly Silica Bricks Fabricated by Yellow River Silt

Abstract:

Silt from the Yellow River was mixed with a certain amount of SiO2 powder to fabricate eco-friendly silica bricks and different amounts of TiO2 were added to ameliorate the thermal conductivity of the bricks. Results showed that the phases of as-fabricated silica bricks are cristobalite and tridymite with cristobalite predominating. With increasing amounts of TiO2, the bulk density and thermal conductivity of the samples increase. Although the bulk density (1.65~1.76 g/cm3 ) than the ideal density 1.85 g/cm3, the thermal conductivity is significantly ameliorated. The thermal conductivity of the sample with 1.5% TiO2 addition is 2.11 W/m.°C, which is nearly three times higher than that of commercial silica bricks (0.8 W/m.°C).