Highly porous Sr-doped TiO2 ceramics maintain compressive strength after grain boundary corrosion

Freeze casting of hydroxyapatite‐titania composites for bone substitutes

“…82,83 Through the combined HA and TiO 2 solid loading, smaller grain size and the presence of interfacial bonding are occurring in the composite scaffolds. Combined with the EDX analysis which showed more evenly distributed regions of calcium and titanium in HT-50 samples, lower mechanical properties in HT-25 and HT-75 were thus attributed to larger grain sizes 79,80,82 from sintering and fewer interfacial boundaries 83,84 from the composite loading as previously reported. In contrast, the better balance of HA and TiO 2 in HT-50 led to a more optimal combination of the factors that resulted in stronger scaffold when sintered at 1250 C. [82][83][84] As suggested, the TiO 2 content therefore increased the UCS and E compared to HA alone and reached an experimental maximum in HT-50 with a UCS of 3.12 ± 0. are not shown as they showed much greater cell activity in comparison to the scaffold samples.…”

“…Combined with the EDX analysis which showed more evenly distributed regions of calcium and titanium in HT-50 samples, lower mechanical properties in HT-25 and HT-75 were thus attributed to larger grain sizes 79,80,82 from sintering and fewer interfacial boundaries 83,84 from the composite loading as previously reported. In contrast, the better balance of HA and TiO 2 in HT-50 led to a more optimal combination of the factors that resulted in stronger scaffold when sintered at 1250 C. [82][83][84] As suggested, the TiO 2 content therefore increased the UCS and E compared to HA alone and reached an experimental maximum in HT-50 with a UCS of 3.12 ± 0. are not shown as they showed much greater cell activity in comparison to the scaffold samples. Composite scaffolds had lower cell activity during the experiment compared to npHA samples.…”