Fragmentation of TiN Particles by Ultrasonic Treatment

摘要：

　　In this study,a intensitive ultrasonic treatment system was used for the fragmentation of micrometer sized TiN ceramic particles in the range of 100-700μm.Fragmentation of particles was observed and substantial sub-micron particles (ranging from 0.2-1μm) were obtained.The effects of various parameters such as applied ultrasonic power,treatment time,solids concentration and liquid volume on fragmentation were investigated.Laser particle size analyzer was used to study the fragmentation kinetics of TiN.The results indicated that the relationship between specific ultrasound energy and the mean particle size of the particle can be described by an empirical size-energy model.Base on laser particle size analyzer and SEM,the mechanism of fragmentation of TiN was proposed and characterized.The fraction of sub-micron particles became more pronounced with increased duration and applied power,but with decreased solids concentration and suspension volume.Incorporation with XRD and DSC,the lattice strain induced in particle during ultrasonic treatment was detected.

关键词： Ultrasonic Treatment Titanium Nitride Particle Fragmentation Particle Size Distribution Laser Particle Size Analyzer Lattice Strain

作者: Jiyu Ma Jinwu Kang Yishen Hu Tianyou Huang

作者单位: Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

会议类型: 国际会议

会议名称: 中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)

会议地点: 杭州

会议语种:英文

页码: 1-6

在线出版日期: 2012-11-04（万方平台首次上网日期，不代表论文的发表时间）