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      https://www.ias.ac.in/article/fulltext/boms/041/01/0017

    • Keywords

       

      Ceramic composite; PIP; factorial design; mechanical properties; microstructure.

    • Abstract

       

      Polymer impregnation and pyrolysis (PIP) process-based C/SiC composites are fabricated using the in-housesynthesized methyl-polycarbosilane (PCS). Two-level factorial design matrix is employed to carry out experiments to studythe effect of four factors on flexural strength of the composite.Total sixteen sets of composite samples are fabricated.Responsetable, normal probability plot, ANOVA and regression analysis are carried out to determine the statistical significant factors.Composite density ($\rho$), fibre volume fraction ($V_{\rm f}$ ) and pyrolysis temperature ($T$) are found to be statistically significant, while softening point (SP) of the PCS and interaction of these four factors are found insignificant. Higher levels of thedensity and $V_{\rm f}$ have shown positive effect, while the pyrolysis temperature has negative effect on the flexural strength of the composites. Flexural strength was found to be in the range of 374–592 MPa depending on the process parameters. Themechanical behaviour of the composites at different process conditions was explained with the help of their microstructures.

    • Author Affiliations

       

      SURESH KUMAR1 M BABLU1 SHRIRAM JANGHELA1 M K MISRA1 RAGHWESH MISHRA1 ASHOK RANJAN1 N ESWARA PRASAD1

      1. Directorate of Ceramics and CMCs, DMSRDE, Kanpur 208013, India
    • Dates

       
  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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