Abstract
A comparative study between oxide and non-oxide sintering additive was conducted to examine the thermal and mechanical properties of Si3N4 ceramics. The effects of additive types (oxide or non-oxide) on microstructure, thermal conductivity and mechanical strength were investigated. Replacement of oxide additives by non-oxide additives induced a decrease in the secondary phase and lattice oxygen contents of sintered samples. The use of non-oxide sintering additives increased the thermal conductivity of Si3N4 ceramics; however, the sintering additive had less impact on the ceramic flexural strength. The measured strengths of all samples ranged from 822MPa to 916MPa. Therefore, the thermal conductivity of ceramics incorporating non-oxide sintering additives increased while maintaining flexural strength; these materials possessed a flexural strength of 862MPa and a thermal conductivity of 101.5W/mK.
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.
