Abstract
The effect of Pt content dispersed in Ag-CuO fillers on the interfacial microstructure and properties of Al2O3 ceramic joints brazed in air was investigated. Pt addition did not influence the variety of phases formed during reactive air brazing of Al2O3 joints. The position and morphology of CuO phase changed with Pt content which varied from 0 to 13.6 wt. %. Pt dissolved into Ag matrix completely. The typical interfacial sequence of brazed joints was Al2O3/CuAl2O4/CuO/Ag(s, s)/CuO/CuAl2O4/Al2O3. The addition of Pt to the Ag-CuO filler enhanced significantly the strength of Al2O3 joint from room temperature and up to 600℃. The joints brazed with Ag-CuO-9.0 wt. % Pt had the highest average strength at room temperature and at 600℃. The strength increased by 17 % and almost 100 %, respectively, compared with the Pt-free joint.
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.
