HIGH STRENGTH CERAMICS WITH NOVEL FRACTURE MODE

The present invention provides a method for making a high strength, small grain size ceramic having a transgranular fracture mode by rapid densification of a green body and subsequent cooling of the densified ceramic. The ceramic may include dislocations, defects, dopants, and/or secondary phases th...

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Main Authors KIM, Woohong, HUNT, Michael, SANGHERA, Jasbinder, S, BAYYA, Shyam, S, SADOWSKI, Bryan, AGGARWAL, Ishwar, D, VILLALOBOS, Guillermo, R, ROCK, Benjamin
Format Patent
LanguageEnglish
French
German
Published 13.11.2019
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Summary:The present invention provides a method for making a high strength, small grain size ceramic having a transgranular fracture mode by rapid densification of a green body and subsequent cooling of the densified ceramic. The ceramic may include dislocations, defects, dopants, and/or secondary phases that are formed as a result of the process and resulting in stress fields capable of redirecting or arresting cracks within the material. This ceramic can maintain transparency from ultraviolet to mid-wave infrared.
Bibliography:Application Number: EP20170790408