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| Effect of CeO2 doping on dispersion of ZrO2 ceramic bearing particles |
| YU Dongling，ZHANG Xiaohui，WU Nanxing，LIAO Dahai |
| School of Mechanical and Electronic Engineering，Jingdezhen Ceramic Institute，Jingdezhen 333403，China |
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Abstract In order to investigate the relationship between the content of CeO2 and the dispersion of dry granulation
of ZrO2 ceramic bearings，ZrO2 ceramic bearings with different content of CeO2 were prepared by dry granulation.
High-precision screen was used to screen billet particles，and scanning electron microscopy was used to observe
the micro-morphology. The SEM image was converted into binary image by Image J image analysis software，
and the dispersion parameters were obtained. Particle gradation analysis and dispersion D method were applied
to evaluate the dispersion of billet particles. The results show that when the content of doped CeO2 is 7%，the
particle size distribution curve is approximately normal distribution，and the qualified rate of particles is the highest.
Dispersion D0.1 and D0.2 are the highest，which are 9.67% and 17.35% respectively. The best dispersion uniformity
of billet particles is obtained. CeO2 doping can effectively improve the particle dispersion of ZrO2 ceramic
bearings during dry granulation process.
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Received: 31 December 2019
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2021, Vol. 31 
