Ceramics Special Issue Design Properties Damage and
Refractory Materials design and corrosion CEMHTICNRS 1D av de la Recherche Scientifique 45071 Orléans cedex 2 France Interests refractory ceramics the corrosion of refractory materials by gases metals and liquid oxides at high temperature (the identification of the chemical reactions modelling of the thermochemical mechanisms transport of the liquid phases in the capillary
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Impact of Nano-Cr2O3 Addition on the Properties of
sintering method. The phase analysis microstructure and setting times of prepared cements are investigated. Besides the slag resistance of refractory castables containing prepared cements is evaluated. 2. EXPERIMENTAL . 2.1. Raw materials and compositions . Calcined alumina (source of Al. 2. O. 3) and highly pure
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(PDF) Thermomechanical Behavior of High-Alumina Refractory
J. Am. Ceram. Soc. 83 10 2481–90 (2000) journal Thermomechanical Behavior of High-Alumina Refractory Castables with Synthetic Spinel Additions Fabien Simonin † Christian Olagnon † Sandrine Maximilien and Gilbert Fantozzi Institut National des Sciences Applique´es (INSA) Groupe d Etudes de Me´tallurgie Physique et de Physique des Mate´riaux (GEMPPM) UMR 5510 F69621
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FIRE Compendium Series Vol. 1 Refractory Castable Engineering
3.2. Mastering the microstructure to optimize the spinel-forming castable properties 537 4. Final remarks 577 5. References 579 6. Further reading 591 Chapter 9 Carbon-containing refractory castables design properties and applications 1. Introduction 593 2. Raw materials for carbon-containing castables 595 2.1. Carbon sources 596 2.2.
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Professor Shaowei ZhangPublications- Engineering
(2001) Effect of Al2O3-SiO2 Sol-Gel Coatings on Water-Wettability and Oxidation Resistance of Graphite Proc. 14th Inter. Conf. Refractory Castables pages 47-52. Zhang S Lee WE Sarpoolarky H. (2001) Different Types of in situ Refractories Fundamentals of Refractory Technology (Ceramic Trans 125) American Ceramic Society .
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Effects of SnO 2 Addition on the Properties of Alumina
Alumina-magnesia refractory castables have been widely used in the wall and bottom impact pad of steel ladles. The properties of alumina-magnesia refractory castables with SnO 2 additive in 05 wt range were investigated. The phase composition microstructure physical and mechanical properties of these refractories were studied.
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Proceedings of the Unified International Technical
DANA G. GOSKI PHD is the Director of Research at Allied Mineral Products in Columbus Ohio. Dr. Goski earned her PhD in Engineering from Dalhousie University Canada. She is a member of The American Ceramic Society s (ACerS) Refractories Division a co-inventor on a number of international patents and an ardent supporter of science and engineering educational outreach activities.
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Self flowing refractory castables study of the hydraulic
Refractories are enabling materials in that their primary function is to facilitate the production of other materials such as metals glasses petrochemicals and cements. They have enabled the utilization of heat to make materials since the Bronze Age. Although in recent years a number of studies concerning the many complex variables that determine the rheologic hydraulic and ceramic
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A Review on Recent Advances on Magnesia-Doloma
Yaghoubi H Sarpoolaky H Golestanifard F Souri A. Influence of nano silica on properties and microstructure of high alumina ultra-low cement refractory castables. Iranian Journal of Materials Science Engineering. 20129(2) 50-8. 81. Zhigang L Fangbao Y. Effect of Nano Calcium Carbonate on Properties of Corundum-spinel Castables.
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Brazilian refractory grade bauxite a new alternative to
In this category it stands out the refractory castables which are premixed combinations of refractory aggregates matrix components bonding agents and admixtures. At the point of installation the castable is mixed with a liquid (typically water) and vibrated poured pumped or pneumatically shot into place to form a refractory shape or
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Microstructure and phase evolution of alumina–spinel self
Apr 01 2011 · The microstructure and phase composition of alumina–spinel self-flowing refractory castables added with nano-alumina particles at different temperatures are investigated. The physical and mechanical properties of these refractory castables are studied.
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A Review on Recent Advances on Magnesia-Doloma
Yaghoubi H Sarpoolaky H Golestanifard F Souri A. Influence of nano silica on properties and microstructure of high alumina ultra-low cement refractory castables. Iranian Journal of Materials Science Engineering. 20129(2) 50-8. 81. Zhigang L Fangbao Y. Effect of Nano Calcium Carbonate on Properties of Corundum-spinel Castables.
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Ceramics Free Full-Text Differences in the Corrosive
The energy transition from the incineration and gasification of fossil fuels to the incineration and gasification of biomass refractory linings is being held up by a severe corrosion issue caused by high alkali contents and the wide variety of biomass sources. Incinerators optimized for fossil fuels are commonly lined with mullite Al2O3-Cr or SiC-based refractory products however those
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CONGRESS UNITECR 2017
An investigation on the corrosion resistance of alumina-spinel refractory castable containing calcium magnesium aluminate cement Value enhancement for refractory castables by deflocculants based on comb polymer technology Influence of sic content on microstructures and properties of lightweight corundum-spinel castables
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Nano-Bonded Wide Temperature Range Designed Refractory
Among the different bonding materials calcium aluminate cement (CAC) is most common but the introduction of CaO in the refractory castable system by the
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Effects of SnO2 Addition on the Properties of Alumina
Alumina-magnesia refractory castables have been widely used in the wall and bottom impact pad of steel ladles. The properties of alumina-magnesia refractory castables with SnO 2 additive in 05 wt range were investigated. The phase composition microstructure physical and mechanical properties of these refractories were studied.
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(PDF) Sintering effect of calcium carbonate in high
properties and microstructure of corundum based castable in Proceedings of the UNITECR 2009 Salvador Brazil 2009 pp. 15. 15 Q. Wang E ff ect of micro-sized calcium carbonate
Get PriceEFECTUL CLORURII DE CALCIU ASUPRA PROCESULUI DE
alumina as raw materials 7 . And the refractory castables bonded by the cement containing MgAl 2 O 4 spinel have shown the increased thermal shock resistance 8 and slag attack resistance 7 . Therefore calcium magnesium aluminate cement is gaining the interest for bonding refractory castables over the last few years 4 9 .
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The effect of microsilica and refractory cement content on
The contents of cement and microsilica in the refractory castables and the chemical composition of the base castable are given in Tables IV and V respectively. The amount of water needed to treat the castable was 4.5-6.5 wt. .
Get PriceBrazilian refractory grade bauxite a new alternative to
In this category it stands out the refractory castables which are premixed combinations of refractory aggregates matrix components bonding agents and admixtures. At the point of installation the castable is mixed with a liquid (typically water) and vibrated poured pumped or pneumatically shot into place to form a refractory shape or
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New Insights into Corrosion Mechanisms of Dense Refractory Castables Containing a Novel Calcium Aluminate Binder. Adriana Borovsky Chris Parr Jean-Michel Auvray. Volume 5 Issue 2 Pages 9598. Keywords corrosion mechanism CMA calcium aluminate microstructure refractory castables alumina-spinel alumina-magnesia spinel CA6
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Self flowing refractory castables study of the hydraulic
Refractories are enabling materials in that their primary function is to facilitate the production of other materials such as metals glasses petrochemicals and cements. They have enabled the utilization of heat to make materials since the Bronze Age. Although in recent years a number of studies concerning the many complex variables that determine the rheologic hydraulic and ceramic
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AbstractsUNITECR 2017
containing different lightweight corundum aggregates.. 30 o28) formation and microstructure evolution of intracrystalline o105) pre-shaped refractory castable for reheating furnace burner corundum-spinel refractory castables .. 94 oi 1) other industries 1 .. 96 . 7 o108) reactive filter collectors based on calcium aluminates
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(PDF) Acetic Acid Role on Magnesia Hydration for Cement
Different approaches to master magnesia hydration in refractory castables have been recently proposed. Among them the use of hydrating agents can change the
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Analysis and Prediction of Corrosion of Refractory
Incineration of high-content sodium salt organic waste liquid will corrode the refractory material in the incinerator causing the refractory material to peel off and be damaged. A thermodynamics method was used to study the thermodynamic properties of three common sodium salts (NaCl Na2CO3 and Na2SO4) on the corrosion of refractory materials (MgO·Cr2O3 MgO·Al2O3 Al2O3 MgO and Cr2O3).
Get PriceNano-Bonded Wide Temperature Range Designed Refractory
Among the different bonding materials calcium aluminate cement (CAC) is most common but the introduction of CaO in the refractory castable system by the
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CONGRESS UNITECR 2017
An investigation on the corrosion resistance of alumina-spinel refractory castable containing calcium magnesium aluminate cement Value enhancement for refractory castables by deflocculants based on comb polymer technology Influence of sic content on microstructures and properties of lightweight corundum-spinel castables
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Production and properties of refractory raw materials
performance in the refractory ap-plications. Mullite and andalusitemineral structure and mullitization Most of the acid refractory materials can be described on the system Al 2 O 3SiO 2 (Fig. 1). This system is characterized by three phases silica mullite and corundum
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(PDF) Thermomechanical Behavior of High-Alumina Refractory
J. Am. Ceram. Soc. 83 10 2481–90 (2000) journal Thermomechanical Behavior of High-Alumina Refractory Castables with Synthetic Spinel Additions Fabien Simonin † Christian Olagnon † Sandrine Maximilien and Gilbert Fantozzi Institut National des Sciences Applique´es (INSA) Groupe d Etudes de Me´tallurgie Physique et de Physique des Mate´riaux (GEMPPM) UMR 5510 F69621
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