The influence of surface-modified graphites on the rheological pattern of alumina-carbon cementitious refractory castable matrix

Mukhopadhyay, Sibabrata

doi:10.1016/j.ceramint.2019.06.257

Cited by 7 publications

(2 citation statements)

References 52 publications

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“…10 These shortcomings seriously affect product performance and complicate the preparation process. In order to overcome the application limitations of carbon materials, the carbon surface modification technologies, such as the solgel method 11,12 and coating method, [13][14][15] have been applied. However, the carbon surface modification technologies are complex and have some defects, including coating peeling easily and introducing impurities into the matrix easily, which hinder their industrialization.…”

Section: Introductionmentioning

confidence: 99%

Study on cobweb‐like carbon nanotubes/calcium aluminate cement and its effect on the properties of Al₂O₃–SiC–C castables

Zang

Xiao

Ding

et al. 2021

Int J Applied Ceramic Tech

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Cobweb‐like carbon nanotubes/calcium aluminate cement (CNTs/CAC) were synthesized through catalytic sintering with citric acid, calcium carbonate, and alumina as raw materials and ferric chloride as catalyst precursor. The products were characterized by X‐ray diffractometry, scanning electron microscopy, Raman spectroscopy, and high‐resolution transmission electron microscopy. The in situ cobweb‐like carbon firmly bonded between calcium aluminate grains, which endows the better oxidation resistance and water dispersion of carbon. The research had also shown that the bamboo‐like multiwalled carbon nanotubes with high aspect ratio were formed in cement by catalysis, which were entangled and aggregated to form cobweb‐like carbon. CNTs/CAC was applied in the Al2O3–SiC–C castables as a binder. Compared with the castables with spherical asphalt and in situ high‐content carbon‐containing calcium aluminate cement (HCCAC) as carbon source, the oxidation resistance index ratio of the castables bonded with CNTs/CAC increased by 45% and 22%, and the residual strength ratio increased by 25% and 20%, respectively. The results indicated that the oxidation resistance and thermal shock of the Al2O3–SiC–C castables bonded with CNTs/CAC were significantly improved.

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Section: Introductionmentioning

confidence: 99%

Study on cobweb‐like carbon nanotubes/calcium aluminate cement and its effect on the properties of Al₂O₃–SiC–C castables

Zang

Xiao

Ding

et al. 2021

Int J Applied Ceramic Tech

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“…Thus, they are usually used in iron troughs [1][2][3][4]. Unfortunately, the ball pitch, which is one of the main carbon sources used for Al 2 O 3 -SiC-C castables, releases harmful gases at elevated temperatures, pollutes the environment; and there is still a great challenge for the incorporation of the graphite flakes into castables owing to their poor water wettability [5]. All these drawbacks generate serious obstacles to the development of Al 2 O 3 -SiC-C based castables.…”

Section: Introductionmentioning

confidence: 99%

Effect of in-situ carbon containing calcium aluminate cement on properties of Al₂O₃-SiC-C based trough castables

Yang

Xiao

Ding

et al. 2020

Journal of Asian Ceramic Societies

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The properties of Al 2 O 3-SiC-C castables bonded by in-situ carbon containing calcium aluminate cement (CCAC) were investigated in this study. The results showed that after the Al 2 O 3-SiC-C castables were dried at 110°C, their cold crushing strength (CCS) and cold modulus of rupture (CMOR) increased with the percentage of CCAC. The sample with CCAC content exceeding 2.5% by mass (named C2.5) had higher CCS and CMOR values than those of the model Al 2 O 3-SiC-C castables (named BPS) with ball pitch as the carbon source. After being fired at 1100 and 1450°C, all the castables exhibited increased CCS and CMOR values, while the high apparent porosity of the BPS sample lowered its CCS and CMOR values. Compared with the BPS sample, the carbon materials of the castables bonded by CCAC exhibited improved dispersion in the matrix and excellent oxidation resistance, which enhanced the corrosion resistance of the refractory castables.

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Improvement of Rheological Characteristics of Carbon Containing Alumina-Rich Castable Matrix by Surface-Treated Graphites

2020

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The influence of surface-modified graphites on the rheological pattern of alumina-carbon cementitious refractory castable matrix

Cited by 7 publications

References 52 publications

Study on cobweb‐like carbon nanotubes/calcium aluminate cement and its effect on the properties of Al₂O₃–SiC–C castables

Study on cobweb‐like carbon nanotubes/calcium aluminate cement and its effect on the properties of Al₂O₃–SiC–C castables

Effect of in-situ carbon containing calcium aluminate cement on properties of Al₂O₃-SiC-C based trough castables

Improvement of Rheological Characteristics of Carbon Containing Alumina-Rich Castable Matrix by Surface-Treated Graphites

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The influence of surface-modified graphites on the rheological pattern of alumina-carbon cementitious refractory castable matrix

Cited by 7 publications

References 52 publications

Study on cobweb‐like carbon nanotubes/calcium aluminate cement and its effect on the properties of Al2O3–SiC–C castables

Study on cobweb‐like carbon nanotubes/calcium aluminate cement and its effect on the properties of Al2O3–SiC–C castables

Effect of in-situ carbon containing calcium aluminate cement on properties of Al2O3-SiC-C based trough castables

Improvement of Rheological Characteristics of Carbon Containing Alumina-Rich Castable Matrix by Surface-Treated Graphites

Contact Info

Product

Resources

About

Study on cobweb‐like carbon nanotubes/calcium aluminate cement and its effect on the properties of Al₂O₃–SiC–C castables

Study on cobweb‐like carbon nanotubes/calcium aluminate cement and its effect on the properties of Al₂O₃–SiC–C castables

Effect of in-situ carbon containing calcium aluminate cement on properties of Al₂O₃-SiC-C based trough castables