REU Supplement: Structure, Properties and Micromechanics of Fine Particle Clusters: Application to Agglomerate Dispersion

REU 补充：细颗粒团簇的结构、性质和微观力学：在附聚物分散中的应用

• 批准号: 8918722
• 负责人: Ica Manas-Zloczower
• 金额: $ 11.43万
• 依托单位: Case Western Reserve University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-02-01 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8918722&HistoricalAwards=false
• 关键词: REU; Supplement; Structure; Properties; Micromechanics

This research deals with the strength of pelletized aggregates of particle. Aggregates will be examined by microscope to determine their geometry, especially the radial variation of porosity. Pore size distributions will be inferred from liquid penetration at low pressure. Stress-strain relationships for individual agglomerates subjected to tension, torsion, shear will be measured using a "nanotensilometer." The rupture of individual aggregates suspended in a liquid undergoing shear in a cone and plate viscometer will be observed. Aggregates of particles are encountered in materials processing, water treatment, and elsewhere. Methods to assess and control aggregate strength where needed.

这项研究涉及颗粒颗粒集合体的强度。集合体将在显微镜下观察，以确定其几何形状，特别是孔隙度的径向变化。孔的大小分布将从低压下的液体渗透率推断出来。单个团聚体在拉伸、扭转和剪切作用下的应力-应变关系将使用“纳米张力计”进行测量。在锥板粘度计中观察到悬浮在液体中的单个聚集体在剪切过程中的破裂。颗粒聚集体在材料加工、水处理和其他地方都会遇到。在需要时评估和控制骨料强度的方法。