摘要
研究了用共沉淀法在沉淀反应溶液中NH4Cl电解质含量对YTZP陶瓷粉体团聚状态的影响和粉体的烧结性能。实验结果表明,较低的NH4Cl含量会造成粉体的团聚;但高于某浓度值后,NH4Cl将显著改善粉体的团聚状态,使粉体团聚强度降低、团聚体尺寸减小和烧结性能提高。在沉淀反应溶液中加入适量NH4Cl电解质,将起到分散剂的作用,有利于提高粉体的分散性。
Effect of NH4Cl electrolyte on the state of agglomeration and the sintering behavior of YTZP powder prepared by coprecipitation are discussed in this paper.Experimental results show that at low content of NH4Cl,NH4Cl causes the agglomerate formation of precipitated particles,on the contrary,NH4Cl effectively improves the state of agglomeration of YTZP powder,that exhibits low agglomerate strength,small agglomerate size and high sinterability,when the NH4Cl content is properly increased.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
1997年第6期720-723,共4页
Journal of The Chinese Ceramic Society
基金
陕西省自然科学基金
关键词
四方相
氧化锆
团聚状态
陶瓷粉体
电解质
NH4CL
yttiatetragonal zirconia polycrystalline,powder,coprecipitation,state of agglomeration