机械制造与自动化2011，Vol.40Issue(6)：12-14,26,4.
水相体系中纳米α-Al2O3的分散稳定性研究
Dispersion of α-Al2O3 Nano-Powders in Water Suspension
摘要
Abstract
This paper uses sodium hexametaphosphate ( SHP), polyethyleneglycol ( PEG400), cetyltrimethylammonium chloride (CTAC) and sodium dodecyl benzene sulfonate(SDBS)as surfactants to make a study of dispersion of α-AI2O3 nano-powders in water suspension. The influence of supersonic time,Ph value and surfactant concentration on the stability of α-AI2O3 suspension is systematically studied. The results show that mass fraction of surfactant has the greatest influence on the stability of the suspension. The dispersion stability of α-AI2O3 water suspension is the first to be increased to a maximum and the tast to be decreased with the increase of ultrasonic time. SDBS is the best one among the four kinds of surfactants in the experiments,the optimal dispersing condition is 2.0% in mass percent of SDBS and Ph value is 9,ultrasonic time is 20 min.关键词
化学机械抛光(CMP)/纳米α-Al2O3/分散剂/分散体系稳定性/水相体系Key words
chemically mechanical polishing (CMP) /α-AI2O, Nano-Powders/ dispersant agent/ dispersion stability/ water suspension分类
机械制造引用本文复制引用
曹连静,孙玉利,左敦稳,祝晓亮,张国家,史晨红..水相体系中纳米α-Al2O3的分散稳定性研究[J].机械制造与自动化,2011,40(6):12-14,26,4.基金项目
国家大学生创新性实验计划项目(No.101028721) （No.101028721）
南京航空航天大学研究生创新基地开放基金(No.201001014) （No.201001014）
南京航空航天大学基本科研业务费专项科研项目(No.NS2010134) （No.NS2010134）
