Abstract
In the present paper, direct foaming technique and sacrificial template method were used to prepare porous alumino-silicate bonded SiC ceramics from mixtures of silicon carbide, kaolin and calcined alumina. The direct foaming process depends on generating bubbles inside the slurry of SiC mixtures through a reaction between CaC2 and Al powder in presence of H2O to form C2H2 and H2 gases in two steps of the reaction. In the sacrificial template method, the pores were created in the prepared SiC specimens after burning out the used sacrificial template, corn and potato starch. Some fired specimens were selected to study the effect of their composition and preparation conditions on their oxidation resistivity, compressive strength and thermal shock resistivity. Based on purity and homogenous microstructure, the present study offers SiC specimens with good oxidation resistance where they exhibit (0.1 to 2 mg/cm2) increase in mass after oxidation in air at a temperature of 1100 ̊C for 65 h, despite their high open porosity values. The present SiC specimens have high thermal shock resistivity. However, the foamed specimens showed better resistivity than those prepared by the sacrificial template method. Using the extruder for shaping the latter specimens improves their resistivity to thermal shock. The compressive strength of both groups of specimens is affected by their composition and preparation conditions.
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Taslicukur Z, Balaban C, Kuskonmaz N (2007) Production of ceramic foam filters for molten metal filtration using expanded polystyrene. J Eur Ceram Soc 27(2–3):637–640
Moreira EA, Innocentini MDM, Coury JR (2004) Permeability of ceramic foams to compressible and incompressible flow. J Eur Ceram Soc 24(10–11):3209–3218
Chen W, Miyamoto Y (2014) Fabrication of porous silicon carbide ceramics with high porosity and high strength. J Eur Ceram Soc 34(3):837–840
Baitalik S, Kayal N, Chakrabarti O (2017) Processing and properties of porous SiC ceramics prepared by yttrium aluminium garnet infiltration. Int J Appl Ceram Technol 14(4):652–664
Zhu X, Jiang D, Tan S (2002) Preparation of silicon carbide reticulated porous ceramics. Mater Sci Eng A 323(1–2):232–238
She J, Ohji T, Deng ZY (2002) Thermal shock behaviour of porous silicon carbide ceramics. J Am Ceram Soc 85(8):2125–2127
Kovalčíková A, Sedláček J, Lenčéš Z, Bystrický R, Dusza J, Šajgalík P (2016) Oxidation resistance of SiC ceramics prepared by different processing routes. J Eur Ceram Soc 36(15):3783–3793
Vedula VR, Green DJ, Hellman JR (1999) Thermal shock resistance of ceramic foams. J Am Ceram Soc 82(3):649–656
Eom J-H, Kim Y-W, Raju S (2013) Processing and properties of macroporous silicon carbide ceramics: a review. J Asian Ceram Soc 1(3):220–242
Lee YJ, Kim SR, Kim YH, Shin DG, Won JY, Kwon WT (2014) Characterization of microstructure on porous silicon carbide prepared by polymer replica template method. J Korean Ceram Soc 51(6):539–543
Oschatz M, Lee JT, Kim H, Nickel W, Borchardt L, Cho WI, Ziegler C, Kaskel S, Yushin G (2014) Micro-and mesoporous carbide-derived carbon prepared by a sacrificial template method in high-performance lithium-sulfur battery cathodes. J Mater Chem A 2(41):17649–17654
Jana DC, Sundararajan G, Chattopadhyay K (2017) Effect of porosity on structure, Young's modulus, and thermal conductivity of sic foams by direct foaming and gel casting. J Am Ceram Soc 100(1):312–322
Ohji T, Fukushima M (2012) Macro-porous ceramics: processing and properties. Int Mater Rev 57(2):115–131
Zhu S et al (2007) Preparation and characterization of SiC/cordierite composite porous ceramics. Ceram Int 33(1):115–118
Hanna SB, Awaad M, Ajiba NA, Saad EA (2018) Characterization of porous Alumino-silicate bonded SiC-ceramics prepared by hand-pressing and extrusion methods. Silicon 10:1961–1972. https://doi.org/10.1007/s12633-017-9708-9
Hanna SB, Awaad M, Ajiba NA (2018) Optimization of a novel process for preparation of silicon carbide foams. Mater Chem Phys 218:77–86
Razak HA, Mahde AK, Yahya AH (2002) Chemical cellulation technique for lightweight clay bricks. Br Ceram Trans 101(4):172–176
She JH, Ohji T, Kanzaki S (2004) Oxidation bonding of porous silicon carbide ceramics with synergistic performance. J Eur Ceram Soc 24(2):331–334
Roy J, Chandra S, Das S, Maitra S (2014) Oxidation behaviour of silicon carbide-a review. Rev Adv Mater Sci 38(1):29–39
Ren F, Zhai G, Ma Z, Chen X, Volinsky AA (2011) Microstructure and quality of SiC foam filters for casting. J Ceram Process Res 12(6):691–694
Aramaki S, Roy R (1962) Revised phase diagram for the system Al2O3—SiO2.". J Am Ceram Soc 45(5):229–242
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Hanna, S.B., Awaad, M. & Ajiba, N.A. Oxidation Resistance, Compressive Strength and Thermal Shock Resistance of SiC Ceramics Prepared by Two Processing Routes. Silicon 12, 761–772 (2020). https://doi.org/10.1007/s12633-019-00147-z
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DOI: https://doi.org/10.1007/s12633-019-00147-z