摘要
为探究掺杂CeO2与ZrO2陶瓷轴承干法制粒分散性的关系,制备了掺杂不同含量CeO2的ZrO2陶瓷轴承干法制粒坯料颗粒,采用高精度网筛对坯料颗粒进行筛分、扫描电子显微镜观测微观形貌。通过Image J图像分析软件将SEM图转换为二值图,得到分散性参数。应用颗粒级配分析法、分散度D法评价坯料颗粒分散性。结果表明:当掺杂CeO2质量分数为7%时,颗粒级配曲线近似呈正态分布,颗粒合格率最高,分散度D0.1、D0.2值最大,分别为9.67%、17.35%,坯料颗粒分散均匀性最好。CeO2掺杂能有效改善ZrO2陶瓷轴承干法制粒过程坯料颗粒分散性。
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.
作者
余冬玲
张小辉
吴南星
廖达海
YU Dongling;ZHANG Xiaohui;WU Nanxing;LIAO Dahai(School of Mechanical and Electronic Engineering,Jingdezhen Ceramic Institute,Jingdezhen 333403,China)
出处
《粉末冶金工业》
CAS
北大核心
2021年第1期39-45,共7页
Powder Metallurgy Industry
基金
国家自然科学基金资助项目(51964022)
江西省科技支撑计划资助项目(20151BBE50041)。
