Field-Induced Nonlinear Particle Chaining

场致非线性粒子链

• 批准号: 8813670
• 负责人: Thomas Jones
• 金额: $ 14万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-08-15 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8813670&HistoricalAwards=false
• 关键词: Field; Induced; Nonlinear; Particle; Chaining

Dielectric particles in an applied electric field tend to form chains aligned parallel to the field. This research will measure the force between chained dielectric particles and the effective dipole moment of the chain as functions of the particle type, particle size, and chain length. These measurements will be made in an improved dielectrophoretic levitation apparatus. A theory for the interparticle force will be developed paying special attention to non- linear electrical effects arising from the high field in the small gap between adjacent particles. The dielectric force and particle chaining play essential roles in electrorheology for the control of properties of particle suspensions and in xerographic printing with toner particles. The current research should aid the engineering of these processes which until now have remained largely based on empiricism.

在外加电场中的电介质颗粒倾向于形成链 与磁场平行。 这项研究将测量 链状电介质粒子和有效偶极矩之间的联系 作为颗粒类型、颗粒尺寸和 链长 这些测量将在改进的 介电泳悬浮装置 一个理论， 粒子间力的发展将特别注意非- 小间隙中强场引起的线性电效应 相邻粒子之间。 介电力和粒子链在 控制颗粒悬浮液性质的电流变学 以及在使用调色剂颗粒的静电印刷中。 当前 研究应该有助于这些过程的工程设计， 基本上还是基于宗教主义。