Mechanical properties of Y-TPZ ceramics obtained by liquid phase sintering using bioglass as additive

Fatigue and subcritical crack growth in ZrO2–bioglass ceramics

“…Dense Y 2 O 3 -stabilized ZrO 2 is usually obtained by solid state sintering at temperatures of about 1500 1C. It was observed that, at this temperature [6,11], the average grain size may vary from 0.5 mm to 1 mm, depending on the sintering time. The use of a relatively low sintering temperature such as 1300 1C reduces grain growth, thus increasing the grain population per unit area.…”

“…Recently, many studies have been reported concerning the effects of additives on the sintering and the resulting mechanical properties of zirconia ceramics [11][12][13][14]. The possibility of combining the good mechanical and biological properties as well as the thermal compatibility of bioglasses from the system 3CaO Á P 2 O 5 -SiO 2 -MgO [15,16] with the properties of tetragonal ZrO 2 , allows for the reduction of production costs and to glimpse an increase of the application field of these materials, especially as part of a dental implantation such as abutment.…”

Microstructure and flexural strength of the Y:TZP/BG composite

“…The formation of these phases after addition of the bioactive glass is related to the fact that zirconia can form solid solutions with different chemical elements, such as yttrium, magnesium, cerium, and in the case of the present study, with calcium present in the composition of BG. Previous works that also sintered similar Y:TZP/BG composite at 1200°C and 1300°C identified a tendency of an increase of monoclinic zirconia as more glass is added in the composite, 21,22 which was observed through an enhance in the intensity of diffraction peaks related to the monoclinic phase. Previous works that also sintered similar Y:TZP/BG composite at 1200°C and 1300°C identified a tendency of an increase of monoclinic zirconia as more glass is added in the composite, 21,22 which was observed through an enhance in the intensity of diffraction peaks related to the monoclinic phase.…”

“…[21][22][23] These works used different sintering temperatures (between 1200 and 1500°C), different bioactive glass (such as silicate or phosphate-based glasses) and zirconia commercial powder with different sizes (nano or microsized). [21][22][23] These works used different sintering temperatures (between 1200 and 1500°C), different bioactive glass (such as silicate or phosphate-based glasses) and zirconia commercial powder with different sizes (nano or microsized).…”

Processing of Concentrated Aqueous Zirconia-Bioglass Slips by Slip Casting

“…In order to lower the sintering temperature of ZrO 2 , additives are deliberately introduced such as Fe 2 O 3 , SiO 2 , Al 2 O 3 , TiO 2 , and others [8]. There are some reports [9,10] concerning the effect of bioglass additives on the sintering behaviour of ZrO 2 ; some glass compositions result in improved densification of ZrO 2 via liquid phase sintering, other ones enhanced the ZrO 2 solid state sintering.…”