摘要
重点研究了在低粘度,高固相体积分数氧化铝浓悬浮体制备过程中,料浆的pH值对料浆性能的影响。结果表明:当pH值达到5左右时,Al_2O_3颗粒在水中的Zeta电位等于0,此时,料浆的粘度最大,分散效果最差。当pH值达到9时,Zeta电位的绝对值达到最大,此时料浆的悬浮稳定性最佳。
The effects of pH on the performance of ceramic slurry during the manufacture of aqueous alumina concentrated suspension with low viscosity and high solid volume loading are studied. The results shows that the Zeta potential is zero when the pH of slurry is abound 5. At this time, the viscosity of slurry is densest and the dispersion effect is worst. However, the Zeta potential is biggest when the pH of slurry is about 9. At this time, the stability of alumina in suspension is best.
出处
《航空材料学报》
EI
CAS
CSCD
2003年第3期50-52,共3页
Journal of Aeronautical Materials
关键词
PH值
凝胶注模成型工艺
氧化铝陶瓷
料浆
影响
Alumina
Gels
Grain size and shape
pH effects
Sedimentation
Viscosity of liquids
