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expansion behavior of cement bonded alumina magnesia

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  • Ceramics Special Issue Design Properties Damage and

    For more than 20 years the sidewalls and bottom of steel ladles have been lined with carbon-bonded magnesia (MgO-C) and magnesia-alumina bricks (MAC). The alumina raw materials react with magnesia forming a spinel which decreases open porosity and slag infiltration.

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  • EFFECTS OF MnO ADDITIONS ON THE PROPERTIES OF

    work showed that the PLC value of alumina-magnesia refractory castables with 2 w/ TiO 2 addition was less than 1 .11 However the PLC values of all the samples treated at 1450 °C were over3 inthis study which indicated that MnO as a mineralizer failed to control the integral expansion behavior of the alumina-magnesia refractory castables.

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  • Alumina Magnesia Refractory CastablesRS Kiln Refractory

    Refractory researchers studied the effect of the amount of water added in cement on the thermal expansion behavior of alumina-magnesia castables after high-temperature firing.

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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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  • All articlesJournal of Ceramic Science

    The Journal of Ceramic Science and Technology publishes original scientific articles on all topics of ceramic science and technology from all ceramic branches. The focus is on the scientific exploration of the relationships between processing microstructure and properties of sintered ceramic materials as well as on new processing routes for innovative ceramic materials.

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  • (PDF) Expansion behavior of cement bonded alumina-magnesia

    a) Expansion behavior and (b) expansion rate of alumina-CAC castable with no magnesia (AC) alumina-magnesia castable with no CAC (AM) and alumina-magnesia castable bonded with CAC (AMC).

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  • The Influence of TiO 2 Addition on the Modulus of Rupture

    The addition of TiO2 to alumina-magnesia refractory castables could accelerate the in situ spinel and calcium hexa-aluminate (CA6) formation and change the phase evolution which will have direct effect on the overall modulus of rupture values. The cold (CMOR) and hot (HMOR) modulus of rupture thermal expansion and elastic modulus of alumina-magnesia refractory castables with different

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  • Evolution of in Situ Refractories in the 20th Century

    Johannes Solarek Christina Bachmann Yvonne Klemm Christos G. Aneziris Horst Biermann and M. Rigaud High‐Temperature Compression Deformation Behavior of Fine‐Grained Carbon‐Bonded Alumina Journal of the American Ceramic Society 99 4 () (2016).

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  • Effects of SnO 2 Addition on the Properties of Alumina

    Therefore the overall expansion behavior of alumina-magnesia cement-bonded refractory castables depends on the generation of spinel and calcium aluminates. Thermal expansion behavior is one of the most important aspects for a proper refractory lining design and construction.

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  • Effects of TiO2 addition on the expansion behavior of

    Cement-bonded alumina–magnesia refractory castables present excellent properties because of the in situ spinel and calcium hexaluminate formation. However controlling the expansion derived from in situ reactions is essential for keeping the integrity of castables.

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  • Effects of SnO2 Addition on the Properties of Alumina

    The results showed that the addition of SnO 2 could have a great influence on the properties of alumina-magnesia refractory castables. The expansion apparent porosity and strength of refractories with SnO 2 were all more prominent than those of reference samples which were attributed to the formation of CA 6 and enhanced bonding.

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  • CEMENT CONCRETESlideShare

    Usually steel bars are roughened or corrugated to further improve the bond or cohesion between the concrete and steel 9. Common failure modes of steel reinforced concrete Mechanical failure Carbonation Chlorides Alkali silica reaction Conversion of high alumina cement Sulphates 10. 12 Production Composition Types 11.

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  • A Review on Recent Advances on Magnesia-Doloma

    to cement-bonded powdery concretes in the 1930 s 12 . In the 1960 s calcium-aluminate cement more specifically Cement Fondue started to be used for refractory applications followed by higher-quality 70 and 80 cement at the end of 1970 s and beginning of 1980 s. Concomitantly the difference

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  • Effect of Precursors and Dopants on the Synthesis and

    9 Mariana A. L. Braulio Victor C. Pandolfelli Tailoring the Microstructure of Cement-Bonded Alumina-Magnesia Refractory Castables Journal of the American

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  • Study of Spinel-Containing High Alumina Castable with

    High alumina castable with presynthesized and in situ spinel formation is studied using two different lime-containing high alumina cements. Vibratable castable compositions were studied by conventional processing using a distribution coefficient of 0.29 and heat treatments at 110 900 and 1500°C. Slightly lower density and strength values

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  • All articlesJournal of Ceramic Science

    The Journal of Ceramic Science and Technology publishes original scientific articles on all topics of ceramic science and technology from all ceramic branches. The focus is on the scientific exploration of the relationships between processing microstructure and properties of sintered ceramic materials as well as on new processing routes for innovative ceramic materials.

    Get Price
  • RUC1Refractory concrete mixtureGoogle Patents

    FIELD metallurgy. SUBSTANCE invention relates to production of refractory articles and monolithic lining of thermal generating units operated at high temperature in contact with aggressive melted materials slag metals clinker and glass in various industries. Refractory concrete mixture contains refractory filler based on alumina of different fractions alumomagnesian spinel reactive

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  • Effect of magnesia on strength of hydratable alumina

    The change in strength of hydratable alumina-bonded castable refractories in the presence of magnesia powder and magnesia aggregate after heat treatment at 110∘ and 816 ∘ C and the relationship between the strength and morphology and thermal decomposition behavior of the hydrates in the castables are investigated. The mechanism of bonding facilitated by the presence of magnesite in

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  • Effect of Precursors and Dopants on the Synthesis and

    9 Mariana A. L. Braulio Victor C. Pandolfelli Tailoring the Microstructure of Cement-Bonded Alumina-Magnesia Refractory Castables Journal of the American

    Get Price
  • A comparative study between Direct Spinel Addition and In

    1.4 Calcium Aluminate Cement (Cac) Or High Alumina Cement 16 1.5 Spinels 22 1.6 Tabular Alumina 26 1.7 Fused Magnesia 27 1.8 Use of Additives 28 2 EXPERIMENTAL PROCEDURE 30 2.1 Raw Material Collection 31 2.2 Casting and Sample Preparation 31 2.3 Flow Test 33 2.4 Determination of Density Variation 34

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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.

    Get Price
  • Paper

    Spinel In-situ versus PreformedClearing the Myth. Christian Rampitsch 1 Marion Schnabel 2 Andreas Buhr 2 Reinhard Exenberger 3. 1 voestalpine Stahl 4020 Linz Austria 2 Almatis 60439 Frankfurt Germany 3 voestalpine Stahl 4020 Linz Austria. Revision . Volume 2 Issue 2 Pages 87-93. Abstract. The paper discusses the difference in the formulation concepts of alumina

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  • AbstractsUNITECR 2017

    Partnership in Materials and Technology unitecr2017 contact unitecr2017 The Uni˜ed International Technical Conference on Refractories 15th Biennial Worldwide Congress on Refractories

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  • Tailoring the Microstructure of Cement‐Bonded Alumina

    Taking into account the usual microstructure of cement‐bonded alumina–magnesia refractory castables comprising low‐temperature melting point phases in the CaO–MgO–Al 2 O 3 ‐–SiO 2 system and calcium hexaluminate (CA 6) platelets this material could be a good candidate to be designed based on the structure of biological materials

    Get Price
  • Tailoring the Microstructure of Cement‐Bonded Alumina

    Taking into account the usual microstructure of cement‐bonded alumina–magnesia refractory castables comprising low‐temperature melting point phases in the CaO–MgO–Al 2 O 3 ‐–SiO 2 system and calcium hexaluminate (CA 6) platelets this material could be a good candidate to be designed based on the structure of biological materials

    Get Price
  • Paper

    Spinel In-situ versus PreformedClearing the Myth. Christian Rampitsch 1 Marion Schnabel 2 Andreas Buhr 2 Reinhard Exenberger 3. 1 voestalpine Stahl 4020 Linz Austria 2 Almatis 60439 Frankfurt Germany 3 voestalpine Stahl 4020 Linz Austria. Revision . Volume 2 Issue 2 Pages 87-93. Abstract. The paper discusses the difference in the formulation concepts of alumina

    Get Price
  • CEMENT CONCRETESlideShare

    Usually steel bars are roughened or corrugated to further improve the bond or cohesion between the concrete and steel 9. Common failure modes of steel reinforced concrete Mechanical failure Carbonation Chlorides Alkali silica reaction Conversion of high alumina cement Sulphates 10. 12 Production Composition Types 11.

    Get Price
  • Tailoring the Microstructure of Cement‐Bonded Alumina

    Taking into account the usual microstructure of cement‐bonded alumina–magnesia refractory castables comprising low‐temperature melting point phases in the CaO–MgO–Al 2 O 3 ‐–SiO 2 system and calcium hexaluminate (CA 6) platelets this material could be a good candidate to be designed based on the structure of biological materials

    Get Price
  • EFFECTS OF MnO ADDITIONS ON THE PROPERTIES OF

    work showed that the PLC value of alumina-magnesia refractory castables with 2 w/ TiO 2 addition was less than 1 .11 However the PLC values of all the samples treated at 1450 °C were over3 inthis study which indicated that MnO as a mineralizer failed to control the integral expansion behavior of the alumina-magnesia refractory castables.

    Get Price

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Rongsheng's main products are various types of unshaped refractory products, which are widely used in metallurgy, nonferrous metals, building materials, electric power, petrochemical and other industries.

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