Abstract
Mesocarbon microbeads were molded at different pressures, and then heat-treated. The resulting carbonized/graphitized blocks were evaluated in terms of physical properties and textures to determine their potential as seal materials. In order to seek optimum technical conditions, different molding pressure and heat treatment temperatures (HTT) were investigated. Results indicated that the bulk density and compressive strength and flexural strength increased with the molding pressure. The highest compressive strength of 402 MPa was obtained by using the molding pressure of 200 MPa and then carbonized at 900 °C. With increased HTT, the volumetric shrinkage of the blocks increased, and reached 39.3% when graphitized at 2800 °C. X-ray diffraction patterns and scanning electron microscopy showed that the blocks molded at pressures over 100 MPa had a fine mosaic texture. However at lower molding pressures a coarse mosaic texture and many pores and cracks were found.
Sign-in/Register to access full text options 
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.
