Stabilized Dolomite Refractories

Antonov, G. I.; Nedosvitii, V. P.; Кулик, Аліна Степанівна; Semenenko, O. M.

doi:10.1023/b:refr.0000036722.20179.39

Cited by 6 publications

(3 citation statements)

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“…A partir de todo lo expuesto, se puede observar que la química para la dolomía de aplicación refractaria, requiere no menos del 20% de MgO. El valor porcentual de las impurezas no es un factor determinante, incluso, con cifras cercanas al doble de lo requerido, se utiliza el material para uso refractario (Antonov et al, 2004;Antonov et al, 1997 a, c;Antonov et al, 1996;Booth, 2017;Díaz Tato, 2020;Ewais et al, 2002;Ghasemi-Kahrizsangi et al, 2016 a, b, c;Ghasemi-Kahrizsangi et al, 2017a, b, c, d;Lavat et al, 2010Lavat et al, , 2015Mohammadihooyeh et al, 2020;Moorkah y Abolarin, 2005; Rabah y menos eficientes químicamente. Máxime, teniendo en cuenta que la abundancia de materias primas en el futuro, será crítica (Sugita, 2008).…”

Section: Baudín Y Pena (2021) 2021unclassified

Dolomía y dolomita: un abordaje desde las perspectivas geológica, cerámica y refractaria

Resio

2023

Tesla rev. cient.

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En el presente trabajo de revisión se propone llevar adelante un análisis de la bibliografía relacionada al mineral dolomítico. El estado del arte de las dolomías indica al presente un uso creciente como material refractario debido a la alternativa más económica que representa en comparación con otros materiales como lo es el óxido de magnesio. La importancia de la dolomía aparte de su aplicación en la industria siderúrgica radica en que se ha expandido a otros campos industriales como lo es la producción de catalizadores, soportes de catalizadores, y materiales de depuración de efluentes industriales. La revisión se ha llevado a cabo extrayendo la síntesis de trabajos de investigación desde 1924 al presente, desde tres perspectivas: geológica, cerámica y refractaria, puesto que las revisiones de dolomía sólo analizan los aspectos refractario o geológico en forma separada. Dado este marco, se hace necesario un documento que agrupe las áreas mencionadas.

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Section: Baudín Y Pena (2021) 2021unclassified

Dolomía y dolomita: un abordaje desde las perspectivas geológica, cerámica y refractaria

Resio

2023

Tesla rev. cient.

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“…CaO material is widely used in tundish and ladles due to its outstanding advantages such as high refractoriness, hightemperature stability, good erosion resistance, absorbing non-metallic inclusion. [1][2][3][4][5][6] CaO crucible is also massively used in Ti-Al alloys smelting and electronic materials smelting. 7,8 Traditionally, most CaO crucibles were made from CaO powder and obtained by press molding or slip casting, and then sintered at high temperature.…”

Section: Introductionmentioning

confidence: 99%

“…CaO material is widely used in tundish and ladles due to its outstanding advantages such as high refractoriness, high‐temperature stability, good erosion resistance, absorbing non‐metallic inclusion 1–6 . CaO crucible is also massively used in Ti‐Al alloys smelting and electronic materials smelting 7,8 .…”

Section: Introductionmentioning

confidence: 99%

Influences of solid content of slurry on the microstructure of CaO crucible prepared by slip casting

Deng

Wei

Zhou

et al. 2023

Int J Applied Ceramic Tech

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CaO crucible was prepared from Ca(OH) 2 slurry via a slip-casting method in order to avoid hydration problem caused by free CaO during preparation process. The effect of solid content of Ca(OH) 2 slurry on microstructure of CaO crucible was investigated. It was found that the rheological property of the slurry was significantly improved when the solid content of the slurry within a certain range. The change of solid content of slurry affects the microstructure of the final products. When the solid content of the slurry was 71 wt%, the manufactured CaO crucible was of smallest mean pore size (2.58 μm) after 1600 • C heating treatment.The heated CaO sample was of lower apparent porosity (4.1%) and higher bulk density (2.93 g/cm 3 ). And the size distributions of most CaO grains are between 10 and 40 μm.

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Proposed models for concrete thermal expansion with different aggregate types and saturation conditions

Ghannam

2019

SN Appl. Sci.

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The Coefficient of thermal expansion (CTE) for concrete is one of the most important parameters that affect the fire performance of concrete. Concrete's coefficient of thermal expansion is controlled by the CTE of each component of the concrete mix, as the coarse aggregates represent the largest portion in the concrete mix, it is considered to have a significant effect on the CTE for concrete. Another factor that affects concrete's CTE significantly is the saturation condition (saturated, partially saturated and oven dried condition). This paper presents reviews for available tests results that have been conducted on the CTE for concrete at elevated temperatures for different aggregates type, these results are used to evaluate the models proposed by ASCE model and Euro Code. The results included the coefficient of thermal expansion for different types of aggregates in different saturation conditions (saturated, partially saturated and oven dried condition). It is found that there is a significant difference between the experimental results and Euro code carbonate model, Euro code siliceous model and ASCE. New models were proposed for predicting CTE of different types of aggregate under different saturation condition. The newly proposed models give better prediction compared to Euro code and ASCE model.

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Stabilized Dolomite Refractories

Cited by 6 publications

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Dolomía y dolomita: un abordaje desde las perspectivas geológica, cerámica y refractaria

Dolomía y dolomita: un abordaje desde las perspectivas geológica, cerámica y refractaria

Influences of solid content of slurry on the microstructure of CaO crucible prepared by slip casting

Proposed models for concrete thermal expansion with different aggregate types and saturation conditions

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