Abstract
A well-known approach for manufacturing ceramic-metal composites is based on infiltration of a ceramic preform by a molten metal. The particular properties of the TiC x -M system (M is an infiltrating metal) allow to follow two different strategies in order to generate functionally graded structures. According to the first approach a graded distribution of porosity is generated in the carbide preform by taking advantage of the dependence of the sinterability on the carbon content (x). Liquid metal infiltration generates a varying ceramic-to-metal ratio and a concurrent property profile According to the second approach, a pre-designed spatial carbon variation in a TiC x preform generates a corresponding affinity variation towards an infiltrating carbon containing molten alloy, e.g. a carbon steel. By appropriate heat treatments and as a function of the carbon content, one can induce significant variations and produce pre-designed property profiles in the metallic component and, thence, in the ceramic-metal composite. Examples will be put forward in order to illustrate the two approaches.
Published Version
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 callDisclaimer: 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.
