Properties of Self‐Glazing Al
            <sub>2</sub>
            O
            <sub>3</sub>
            ‐C‐Refractories Influenced by the Graphite Content and Nanoscaled Additives

Ludwig, Dipl.-Chem. Susann; Roungos, V.; Aneziris, Christos G.

doi:10.1002/9781118837009.ch91

Cited by 1 publication

(2 citation statements)

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“…The EDX result revealed that these nano phases with bamboo-like shapes, as shown in the inset of Figure 3B, were carbon fibers derived from the residual phenolic resin 16 . 22 As already reported in the literature, 11,20,[23][24][25] the introduction of nano carbons into Al 2 O 3 -C refractories can help to develop whiskers. However, SiC phase detected in the XRD pattern at 1200°C was not clearly observed in the matrix by SEM, which might be located inside the network of carbon fibers.…”

Section: Phases and Microstructure Evolutionmentioning

confidence: 84%

“…The pyrolysis of resin and the shortage of in situ formed ceramic bonding phases were responsible for the low strengths. 22 The CMOR of the low carbon Al 2 O 3 -C refractory increased rapidly with temperature. 11,12,24 Ludwig et al found that the whiskers network also plays a role in the mechanical strength.…”

Section: Mechanical Properties and Thermal Shock Resistancementioning

confidence: 97%

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Microstructure, properties, and application of low carbon Al₂O₃‐C refractories used as submerged entry nozzles

Bao

Bao³

et al. 2019

Int J Applied Ceramic Tech

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With the aim to achieve the application of low carbon Al2O3‐C refractory as submerged entry nozzle (SEN) materials, a comprehensive study on the microstructure, thermo‐mechanical properties, as well as application performance during use in the continuous casting was carried out by comparing with the traditional one. Both hot and cold modulus of ruptures of the low carbon Al2O3‐C refractory were superior to the traditional one, and its thermal shock resistance still kept in an acceptable level. The increase in the amount of SiC whiskers and the enhancement in the sintering are considered as the strengthening mechanism. In the industrial trial, the rapid loss of graphite caused by the large level fluctuation made the traditional Al2O3‐C refractory more susceptible to flux corrosion. For the low carbon Al2O3‐C refractory, however, the dense structure and the adhesion of viscous slag layer suppressed the slag penetration. Besides, the remaining SiC phases were also difficult to be wetted and dissolved by the flux. As a consequence, a better corrosion resistance was obtained, achieving a decrease of 27.6% in the average depth of the corrosion groove after working for 8 hous.

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Section: Phases and Microstructure Evolutionmentioning

confidence: 84%

Section: Mechanical Properties and Thermal Shock Resistancementioning

confidence: 97%

Microstructure, properties, and application of low carbon Al₂O₃‐C refractories used as submerged entry nozzles

Bao

Bao³

et al. 2019

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

Properties of Self‐Glazing Al ₂ O ₃ ‐C‐Refractories Influenced by the Graphite Content and Nanoscaled Additives

Cited by 1 publication

References 4 publications

Microstructure, properties, and application of low carbon Al₂O₃‐C refractories used as submerged entry nozzles

Microstructure, properties, and application of low carbon Al₂O₃‐C refractories used as submerged entry nozzles

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Properties of Self‐Glazing Al 2 O 3 ‐C‐Refractories Influenced by the Graphite Content and Nanoscaled Additives

Cited by 1 publication

References 4 publications

Microstructure, properties, and application of low carbon Al2O3‐C refractories used as submerged entry nozzles

Microstructure, properties, and application of low carbon Al2O3‐C refractories used as submerged entry nozzles

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Product

Resources

About

Properties of Self‐Glazing Al ₂ O ₃ ‐C‐Refractories Influenced by the Graphite Content and Nanoscaled Additives

Microstructure, properties, and application of low carbon Al₂O₃‐C refractories used as submerged entry nozzles

Microstructure, properties, and application of low carbon Al₂O₃‐C refractories used as submerged entry nozzles