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<p>The large-scale porous RBSC filter tube with the length of 1500&#xa0;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&#xa0;MPa and 30&#xa0;MPa, respectively. The high temperature flexural strength of porous RBSC at 1000&#xa0;°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&#xa0;°C.</p>

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Development of a continuous fabrication process for large-scale reaction bonded SiC filter tube by a continuous Si melt infiltration

  • 期刊论文

  • 发表日期：

    2025年1月24日

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  • Jun Hyung Park,
  • Dong Jun Kim,
  • Kyung Sun Cho,
  • Sahn Nahm,
  • Sang Whan Park

摘要

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.