Jessica’s study on mechanical properties of nanocrystalline MgAl2O4 is published at Acta Materialia! Many congratulations! This works used nanoindentation, microvillar compression, and micro-cantilever bending extensively to investigate the grain size effect on hardenss, yield strength, and fracture toughness. The significant improvement in fracture toughness when the grain size becomes smaller than 10.5nm provides a great promise to develop a high toughness ceramic! Wonderful works!
Jessica M. Maita, Sarshad Rommel, Jacob R. Davis, James A. Wollmershauser, Edward P. Gorzkowski, Boris N. Feigelson, Mark Aindow, Seok-Woo Lee, “Grain size dependence of mechanical properties of nanocrystalline magnesium aluminate MgAl2O4,” Acta Materialia, in press (2023) [PDF][web]