Fabrication of directional SiC porous ceramics using Fe2O3 as pore-forming agent

Bai, Jianguang; Yang, Xinghua; Shi, Yonggui; Song, Xu; Yang, Jianyi

doi:10.1016/j.matlet.2012.03.046

Cited by 36 publications

(15 citation statements)

References 14 publications

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“…The phases in our samples are in accordance with that given by Dey et al [8]. But the quartz phase did not appeared, and the β-SiC phase was replaced by 4H-SiC and 6H-SiC reported by Bai et al [9], for a high sintering temperature at 2250˚C.…”

Section: Microstructuressupporting

confidence: 92%

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Thermal Conductivity and Microstructure Properties of Porous SiC Ceramic Derived from Silicon Carbide Powder

Wu¹,

Ma²,

Chen³

et al. 2013

NJGC

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Porous SiC ceramic were prepared with silicon carbide powder as the aggregate, silicone resin as the binder and pore agent by the process of mixing, iso-static pressure molding, and calcination. The mechanical properties and microstructures of the samples were characterized with a universal testing machine, X-ray diffraction, scanning electron microscope, and mercury injection. Two main factors, molding pressures and silicone resin mass ratio were studied in the experiments. The thermal conductivity of the samples was tested. The compressive strength was up to 19.4 MPa, and the porosities up to 30%. The thermal conductivities, mainly influenced by porosities, increased from 0.68 W·m ·K−1 with the porosity decreasing from 41.96% to 31.30%.

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Section: Microstructuressupporting

confidence: 92%

“…Dey et al prepared porous SiC ceramic with good flexural strengths by an infiltration technique [8]. Bai et al used Fe 2 O 3 as pore-forming agent for preparation of SiC porous ceramic [9]. Maity et al synthesized porous SiC with a mean fracture strength value of 303.9 MPa from cellulosic bio-precursor [10].…”

Section: Introductionmentioning

confidence: 99%

Thermal Conductivity and Microstructure Properties of Porous SiC Ceramic Derived from Silicon Carbide Powder

Wu¹,

Ma²,

Chen³

et al. 2013

NJGC

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“…[4][5][6]. However, because of the strong covalent nature of Si-C bond, it is difficult to fabricate selfbonded SiC ceramics below 2100 1C [1,7]. Although selfbonded SiC ceramics demonstrate excellent properties, they would be oxidized to SiO 2 during long-term operation at high temperature [8].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and properties of cordierite–mullite bonded porous SiC ceramics

Bai

Deng

et al. 2014

Ceramics International

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“…[1,2]. Various methods are used to manufacture porous ceramic: polymer sponge replica technology [3 -5], ice-templated process [6,7], gel casting process [8,9], freeze casting process [10,11], pore forming agent process [12,13], recrystallization process [14], etc. Zhu, et al [3] prepared SiC-Al 2 O 3 ceramic using the polymer sponge replica process.…”

Section: Introductionmentioning

confidence: 99%

Effect of Production Process Parameters on Manufacture and Properties of Porous Ceramic Based on Al2O3

Liu

2015

Refract Ind Ceram

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Al 2 O 3 based porous ceramic (APC) is prepared successfully by a polymer sponge replica method 4 . The main raw material used is white fuzed corundum powder. The effect of zirconium dioxide content (0 -12 wt.%), sintering temperature (1450 -1550°C), and holding duration (2 -6 h) on APC phase composition, macrostructure, microstructure, and properties after sintering, ultimate strength in compression and thermal shock resistance, are studied. Porous ceramic based on Al 2 O 3, exhibiting an ultrafine microstructure, may be prepared by adding ZrO 2 . It has been detected that APC properties depend to a considerable extent on production process parameters. APC exhibiting considerable porosity (88.9%), good ultimate strength in compression (0.52 MPa), and good thermal shock resistance (19 thermal cycles) may be obtained by firing a specimen containing 8 wt.% ZrO 2 at 1500°C and holding for 2 h.

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Fabrication of directional SiC porous ceramics using Fe2O3 as pore-forming agent

Cited by 36 publications

References 14 publications

Thermal Conductivity and Microstructure Properties of Porous SiC Ceramic Derived from Silicon Carbide Powder

Thermal Conductivity and Microstructure Properties of Porous SiC Ceramic Derived from Silicon Carbide Powder

Fabrication and properties of cordierite–mullite bonded porous SiC ceramics

Effect of Production Process Parameters on Manufacture and Properties of Porous Ceramic Based on Al2O3

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