Abstract
The influences of Nb2O5 on the phase, microstructure and hydrochloric acid corrosion behaviors of Nb2O5-Al2O3 ceramics sintered with 2.45 GHz microwave energy were investigated. The results showed that Nb2O5 reacted completely with Al2O3 to form AlNbO4 and densified the pure Al2O3 at a lower sintering temperature and in a short sintering time. Nb2O5-Al2O3 ceramic samples were corroded in diverse concentration hydrochloric acid for different time. Weight loss rate of Nb2O5-Al2O3 ceramic rose dramatically when the corrosion time was not longer than 4 h, and it increased slowly beyond 24 h. After Nb2O5-Al2O3 ceramic samples were corroded for 1 h, pitting corrosion was observed by scanning electric microscope, which was consistent with the analysis results of the scanning Kelvin Probe.
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.
