| Development of a continuous fabrication process for large-scale reaction bonded SiC filter tube by a continuous Si melt infiltration |
Jun Hyung Park1,2, Dong Jun Kim1,2, Kyung Sun Cho2, Sahn Nahm1, Sang Whan Park2
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1Division of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
2Materials Architecting Research Center, Korea Institute of Science and Technology, Seoul, 02792, Republic of Korea |
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Received: July 24, 2024; Revised: October 25, 2024 Accepted: December 29, 2024. Published online: January 24, 2025. |
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| ABSTRACT |
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The large-scale porous RBSC filter tube with the length of 1500 mm was successfully fabricated by the continuous reaction bonding process using a continuous Si melt infiltration without any destruction phenomenon. The fabricated porous RBSC filter tube exhibited the homogeneous microstructure and strength throughout the entire fabricated filter tube. Flexural strengths and O-ring strengths of porous RBSC fabricated using SiC-C preforms with various compositions by a continuous reaction bonding process were above 40 MPa and 30 MPa, respectively. The high temperature flexural strength of porous RBSC at 1000 °C was slightly decreased. The flexural strength of the quenched porous RBSC gradually decreased with rising the quenching temperature. The flexural strength of quenched porous RBSC was moderately maintained above 40% of the flexural strength of unquenched porous RBSC even after quenching from 1000 °C. |
| Key words:
Reaction bonded SiC · Continuous fabrication process · High temperature · Flexural strength · O-ring strength · Si melt infiltration |
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