Abstract

The quantitative effect of the following parameters on the one single step pressureless infiltration characteristics of bilayer (B4C)p/rice-husk ash (RHA) porous preforms by aluminum alloys was investigated using the Taguchi method and analysis of variance (ANOVA): infiltration temperature and time, B4C particle size, RHA percentage, preform porosity and alloy magnesium content. Contribution determinations of each of the parameters on the bending strength of the resulting bilayer composites indicated that the parameter with the most significant effect is process temperature, with a contribution percentage of 79%. Verification tests conducted using the established optimum parameters show good agreement with those of projected values. A detailed examination of microstructure and potential chemical reactions, aided by thermodynamic analysis, allowed establishing conditions for suppressing or diminishing the impact of the deleterious Al4C3 phase.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.