Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Effect of MgO addition on the microstructure development of 3 mol% Y/sub 2/O/sub 3/ - ZrO/sub 2/

Journal Article · · J. Am. Ceram. Soc.; (United States)
OSTI ID:5918177
MgO addition to Y/sub 2/O/sub 3/-ZrO/sub 2/ resulted in enhanced densification at 1350/sup 0/C by a liquid-phase sintering mechanism. This liquid phase resulted from reaction of MgO with trace impurities of CaO and SiO/sub 2/ in the starting powder. The bimodal grain structure thus obtained was characterized by large cubic ZrO/sub 2/ grains with tetragonal ZrO/sub 2/ precipitates, which were surrounded by either small tetragonal grains or monoclinic grains, depending on the heat-treatment schedule.
Research Organization:
HSY-3, Daiichi, Tokyo (JP); Materials Research Labs., Industrial Technology Research Institute, Chutung 31015 (TW)
OSTI ID:
5918177
Journal Information:
J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 72:2; ISSN JACTA
Country of Publication:
United States
Language:
English