Abstract
The sintering of alumina doped with magnesia‐based additives to translucency previously has been possible only in atmospheres of hydrogen or oxygen or under vacuum. This paper reports on the sintering of alumina in N2–H2 atmospheres that contain as little as 2% H2, where optical transparency that is equivalent to that of normal H2 sintering is achieved. In an effort to explain these results, experiments that vary the content of H2 and H2O, as well as the changes in the dynamic atmosphere, have been conducted. The evidence indicates that the final‐stage sintering involves a point‐defect pair mechanism that includes hydrogen interstitials and nitrogen solutes.
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.
