TY - JOUR
T1 - Mechanical properties of ultra-fine grained zirconia ceramics
AU - Theunissen, G.S.A.M.
AU - Bouma, J.S.
AU - Winnubst, A.J.A.
AU - Burggraaf, A.J.
PY - 1992
Y1 - 1992
N2 - The mechanical properties of tetragonal zirconia (TZP) materials doped with Y, Ce or Ti were studied as a function of temperature and grain size. Fine grained Y-TZP (grain size < 0.3 mgrm) shows values for fracture toughness and strength at room temperature, which are comparable with the coarse grained transformation toughened materials, despite lacking transformation toughening. The morphology of the fracture surface points to crack deflection as the most important toughening mechanism. At 800 °C fracture toughness and strength are higher than in coarse grained Y-TZP materials. Doping Y-TZP with Ce or Ti results in a similar trend in mechanical properties, for fine grained material, as for the Y-TZP materials.
AB - The mechanical properties of tetragonal zirconia (TZP) materials doped with Y, Ce or Ti were studied as a function of temperature and grain size. Fine grained Y-TZP (grain size < 0.3 mgrm) shows values for fracture toughness and strength at room temperature, which are comparable with the coarse grained transformation toughened materials, despite lacking transformation toughening. The morphology of the fracture surface points to crack deflection as the most important toughening mechanism. At 800 °C fracture toughness and strength are higher than in coarse grained Y-TZP materials. Doping Y-TZP with Ce or Ti results in a similar trend in mechanical properties, for fine grained material, as for the Y-TZP materials.
U2 - 10.1007/BF00541576
DO - 10.1007/BF00541576
M3 - Article
SN - 0022-2461
VL - 27
SP - 4429
EP - 4438
JO - Journal of materials science
JF - Journal of materials science
ER -