Indentation‐Induced Cracks and the Toughness Anisotropy of 9.4‐mol%‐Yttria‐Stabilized Cubic Zirconia Single Crystals
作者： Antonia Pajares , Fernando Guiberteau , Arturo Dominguez-Rodriguez , Arthur H. Heuer
DOI: 10.1111/J.1151-2916.1991.TB06941.X
关键词: Toughness 、 Fracture mechanics 、 Free surface 、 Mineralogy 、 Anisotropy 、 Cubic zirconia 、 Materials science 、 Indentation 、 Yttria-stabilized zirconia 、 Composite material 、 Single crystal
摘要: The crack systems associated with room-temperature Vickers indentations on (001) surfaces in 9.4-mol%-Y{sub 2}O{sub 3}-stabilized cubic ZrO{sub 2} single crystals are examined. indentation-induced radial cracks not always perpendicular to the free surface, as is usually assumed, and surface traces therefore a reliable guide nature of cracking. In fact, (100) diagonals do form (010), but secondary inclined planes noncoplanar median 110 or 1{bar 1}0.
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