Thermodynamics and Kinetics of Crystal Growth in Soft Systems

软系统中晶体生长的热力学和动力学

• 批准号: 0081159
• 负责人: Raj Rajagopalan
• 金额: --
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-12-15 至 2004-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0081159&HistoricalAwards=false
• 关键词: Thermodynamics; Kinetics; Crystal; Growth; Soft

AbstractCTS-0081159R. Rajagopalan, University of FloridaThe processes of nucleation and crystallization are important in a number of industrial applications, including molecular self-assembly and synthesis of nanocrystalline materials where the role of long range forces between atoms and molecules dominates the evolution of the crystal structure. The PI proposes to study, experimentally and theoretically, the crystallization of charged ("soft") colloids. The role of long range molecular forces within the parametric range of colloids will be investigated using tested measurement techniques (such as optical, neutron and X-Rays) and classical constitutive models as applicable.The PI selected the nature of the colloid (e.g. monodisperse latex particles), its geometry, composition and suitability to the available beam techniques ("reciprocal-space"). An important section is devoted to data analysis and theoretical examination. Such questions as the relative role of equilibrium thermodynamics and crystallization kinetics, crystal/liquid interface interaction, will be researched.

摘要CTS-0081159 R。Rajagopalan，佛罗里达大学成核和结晶过程在许多工业应用中很重要，包括分子自组装和纳米晶体材料的合成，其中原子和分子之间的长程力的作用主导了晶体结构的演变。 PI建议从实验和理论上研究带电（“软”）胶体的结晶。胶体参数范围内的长程分子力的作用将使用测试的测量技术（如光学，中子和X射线）和经典的本构模型（如适用）进行研究。PI选择了胶体的性质（如单分散乳胶颗粒），其几何形状，组成和适用性的可用光束技术（“倒空”）。 一个重要的部分是专门用于数据分析和理论检验。 如平衡热力学和结晶动力学的相对作用，晶体/液体界面相互作用，将被研究。