公开(公告)号：US20210317043A1

公开(公告)日：2021-10-14

申请号：US17285349

申请日：2019-12-13

Applicant: Korea Institute Of Materials Science

Inventor： Cheol-Woo AHN ,  Jong-Jin CHOI ,  Byung-Dong HAHN

IPC: C04B35/04 ,  C09C1/00 ,  C04B35/628 ,  C04B35/645 ,  C09K5/14

Abstract: The present invention discloses magnesia and a method for manufacturing same, wherein the magnesia can be produced into granules of various shapes and sizes and can be improved in moisture resistance with the formation of a moisture resistant surface oxide layer by donor addition and then thermal treatment. The magnesia according to the present invention comprises a MgO granule; and a surface oxide layer formed on a surface of the MgO granule and a composition of the surface oxide layer is different from a composition of an inside of the MgO granule.