West China Journal of Stomatology
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Wang Bo, Chen Jianfeng, Zhang Yan- chun, Wang Ru.
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Objective To evaluate the effect of Fe2O3 and CeO2 as colorants on yttria stabilized tetragonal zirconia polycrystals (Y-TZP) powder. Methods The spray granulation slurry of colored zirconia was prepared with different concentrations of Fe2O3 (0.15%) and CeO2 (4%), which were added in Y-TZP. Zirconia powder was made by spray granulation. The powder specimens were divided into three groups: uncolored zirconia, Fe2O3 (0.15%) zirconia, and CeO2 (4%) zirconia. The particle morphologies of the powder specimens were measured with a laser particle size analyzer and an optical microscope. Results The differences in D50 among the three groups were statistically significant (P<0.05). Group Fe2O3 showed a significant difference from groups CeO2 and uncolored zirconia (P<0.05). Group uncolored zirconia showed no significant difference from group CeO2 (P>0.05). Mostly spherical powder was observed in the three groups. Conclusion Fe2O3 as a colorant can affect particles, whereas CeO2 has no effect.
Key words: yttria stabilized tetragonal zirconia polycrystals, colored zirconia, laser particle size analyzer
Wang Bo, Chen Jianfeng, Zhang Yanchun, Wang Ru.. Effects of colorants on yttria stabilized tetragonal zirconia polycrystals powder[J]. West China Journal of Stomatology, doi: 10.7518/hxkq.2015.05.004.
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https://www.hxkqyxzz.net/EN/Y2015/V33/I5/462