Yun, Sung Il Nahm, Sahn Park, Sang Whan 2024-01-19T13:02:06Z 2024-01-19T13:02:06Z 2022-01-25 2022-01 0272-8842 https://pubs.kist.re.kr/handle/201004/115877 In this study, macroporous SiC ceramics were fabricated via in situ liquid-phase bonding using an Al2O3-Y2O3-SiO2 bonding additive at 1500 degrees C. The pore size of the ceramics was successfully varied from 7.8 to 45.5 mu m by increasing the SiC particle size from 37.6 to 262.6 mu m, without changing the porosity. The effects of the SiC particle size and pore size on the flexural strength, permeability, and electrical resistivity of the ceramics were investigated. The pore size and SiC particle size significantly affected the properties of the macroporous SiC. With an increase in the pore size and SiC particle size, the flexural strength and electrical resistivity of the ceramics decreased significantly, while the permeability and the thermal conductivity increased considerably. The porous SiC with a pore size of 45.5 mu m and a porosity of 37.8% exhibited a high permeability of 21.2 x 10(-12) m(2), relatively high flexural strength of 20.6 MPa, moderate electrical resistivity of 3.8 x 10(5) Omega cm, and high thermal conductivity of 66.4 Wm(-1)K(-1). English Pergamon Press Ltd. Effects of SiC particle size on flexural strength, permeability, electrical resistivity, and thermal conductivity of macroporous SiC Article 10.1016/j.ceramint.2021.09.244 1 Ceramics International, v.48, no.1, pp.1429 - 1438 Ceramics International 48 1 1429 1438 Y scie scopus 000722456900001 2-s2.0-85116331387 Materials Science, Ceramics Materials Science Article POROUS SILICON-CARBIDE GAS-PERMEABILITY MECHANICAL-PROPERTIES WEIGHT-LOSS CERAMICS MULLITE FABRICATION PHASE MEMBRANE BEHAVIOR Porous SiC Liquid phase bonding Flexural strength Permeability Electrical resistivity Thermal conductivity