High temperature mechanical properties of bauxite-based SiC-containing castables

Fangbao, YE; Rigaud, M.; Liu, Xinhong; Xiangchong, Zhong

doi:10.1016/j.ceramint.2003.09.015

Cited by 21 publications

(7 citation statements)

References 1 publication

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“…The mineral phases of bauxite castable samples are essentially corundum, mullite, and glass. Their microstructure is mainly composed of granular corundum skeleton structure interlaced with mullite crystals (similar observations were also reported in an earlier investigation [26]). The SEM micrographs show densely packed microstructures with an abundant of corundum grains of comparable sizes, rounded and sub-rounded, homogeneously embedded in the matrix.…”

Section: Microstructure Of the Fired Castablessupporting

confidence: 71%

Phase composition of bauxite-based refractory castables

Abou-Sekkina

Abo-El-Enein

Khalil

et al. 2011

Ceramics International

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Section: Microstructure Of the Fired Castablessupporting

confidence: 71%

Phase composition of bauxite-based refractory castables

Abou-Sekkina

Abo-El-Enein

Khalil

et al. 2011

Ceramics International

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“…Low thermal expansion, high thermal conductivity and high strength of moissanite /silicon carbide phases are appreciated for refractory applications. In addition, the reinforcing effect of SiC crystallites integrated into spinelͲcorundum castable matrix must significantly contribute to the RUL behavior [38]. These whiskers reinforce the matrix and tremendously improve the load bearing capacity of the composite refractory.…”

Section: Resultsmentioning

confidence: 99%

Significant improvement of refractoriness of Al2O3–C castables containing calcium aluminate nano-coatings on graphite

Dutta

Das

et al. 2014

Ceramics International

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“…It has been reported by many researchers that the mechanochemical synthesis processing can be designed in such a way as to synthesize nano-crystalline particles dispersed within a soluble salt matrix. The chemical precursors react, either during milling or in the subsequent heat treatment stage [22][23][24][25][26][27][28][29]. In the present work, a high-energy ball milling process has been applied to the mixtures of Al 2 O 3 and CaCO 3 .…”

Section: Introductionmentioning

confidence: 99%

Mechanochemically synthesized high alumina cement and their implementation as low cement castables with some micro-fine additives

Kumar

Singh

Srivastava

et al. 2015

Journal of Asian Ceramic Societies

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a b s t r a c tHigh-energy ball milling viz. mechanochemical process is being utilized to mechanically activate ceramic powders for low temperature solid state reactions. The process can help to select low-cost commercially available oxides and can produce powders with nanometer size granules. On the other hand, high alumina cement provides high service temperature when used as refractory castable. Therefore, the effects of highenergy ball milling and subsequent calcinations on the formation of high alumina cementing phases using mixtures of Al 2 O 3 and CaCO 3 were investigated. Nano-meter sized high alumina cement (HAC) powders were synthesized by mechanochemical treatment of Al 2 O 3 and CaCO 3 in weight ratios 7:3 and 8:2. This paper compares the calcined high alumina cement obtained by mechanically activated precursor mix for 1, 2 and 3 h. Low cement castables were prepared from calcined Chinese bauxite as aggregate matrix, prepared HAC acting as hydraulic binder and micro-fine additives as pore filling agents. The bonding of high alumina cement as well as sinterability in these castable was studied with ZrO 2 , ␣-Al 2 O 3 and SiC as micro-fine additives. Castables formulated by prepared high alumina cement demonstrate remarkably improved bulk density and apparent porosity as when compared with those prepared by commercially available cement. Casting water demand was also reduced, as a result quick setting behavior was observed. The addition of mechanochemically processed cements in refractory castables improved the thermo-mechanical properties to a significant extent.

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High temperature mechanical properties of bauxite-based SiC-containing castables

Cited by 21 publications

References 1 publication

Phase composition of bauxite-based refractory castables

Phase composition of bauxite-based refractory castables

Significant improvement of refractoriness of Al2O3–C castables containing calcium aluminate nano-coatings on graphite

Mechanochemically synthesized high alumina cement and their implementation as low cement castables with some micro-fine additives

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