Improved thermal shock performance of Al2O3–C refractories
· Carbon bonded alumina refractories with approximately 30 wt.- residual carbon after coking are widely used as functional components such as submerged entry nozzles monobloc stoppers and ladle shrouds in steel casting operations.Compositions with less residual carbon after coking based on nanoscaled magnesium aluminate spinel (MgAl 2 O 4) alumina nanosheets (α-Al 2 O 3) and carbon
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Alumina refractories (A1203 content ranging from 42 to 99 pct) are being used in nearly all high-temperature metallurgical glass and cement processes. The world reserves of refractory-grade bauxite (RGB) which is a primary constituent of high-alumina (>70 pct A1203) refractories are known to be quite ex-· tensive but the politico-economic stability of the producing nations remains questionable.
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· Carbon bonded alumina refractories with approximately 30 wt.- residual carbon after coking are widely used as functional components such as submerged entry nozzles monobloc stoppers and ladle shrouds in steel casting operations.Compositions with less residual carbon after coking based on nanoscaled magnesium aluminate spinel (MgAl 2 O 4) alumina nanosheets (α-Al 2 O 3) and carbon
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Alumina-silicon carbide refractory characterized by comprising predominantly an inter growth texture. The alumina-silicon carbide is manufactured by adding fine aluminum powder to a body of silica-alumina type refractory compound mixing molding and drying the resultant mixture to obtain a green body and finally firing the green body in an atmosphere containing predominantly a carbon oxide gas.
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· The raw materials used to prepare high-alumina castables were as follows coarse tabular alumina (99.4 8-0 mm Henan Sicheng Grinding Technology Co. Ltd. China) as aggregate tabular alumina powders (99.4 ≤0.045 mm Henan Sicheng Grinding Technology Co. Ltd. China) α-Al 2 O 3 powders (99.23 d 50 = 5.0 μm Jiangsu Jingxin New Materials Co. Ltd. China) and microsilica
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Leading the Refractory Industry with Turnkey Solutions. Plibrico is a leading manufacturer and installer of superior aluminosilicate and high alumina monolithic refractories used in a variety of demanding thermal applications. For almost a century Plibrico has focused on the research and development of complete turnkey refractory solutions.
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influence of non-wetting agents on the modification of dynamic wetting of high alumina monolithic refractories by aluminium alloy Gupta S. / Koshy P. / Sahajwalla V. / Pauline M. / Leicht N. 2006
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· Carbon bonded alumina refractories with approximately 30 wt.- residual carbon after coking are widely used as functional components such as submerged entry nozzles monobloc stoppers and ladle shrouds in steel casting operations.Compositions with less residual carbon after coking based on nanoscaled magnesium aluminate spinel (MgAl 2 O 4) alumina nanosheets (α-Al 2 O 3) and carbon
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· Hurley John P and Kleven Patty L. IMPROVED CORROSION RESISTANCE OF ALUMINA REFRACTORIES.United States N. p. 2001. Web. doi 10.2172/790130.
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High-Temperature Properties. Permanent Linear Change (reheat test) For refractories based on alumina materials density generally increases with alumina content. Apparent Porosity Related to Refractory ASTM specifies thermal conductivity methods in the United States. DIN specifies methods for European manufacturers.
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