NSF Young Investigator

9457957刘易斯首席研究员将在材料科学和工程领域进行新的研究和仪器仪表。特别是，拟议的研究和教育计划将侧重于发展对聚合物稳定纳米陶瓷系统中跨学科相互作用的基本理解。纳米级颗粒的新型材料具有不同寻常的性能，与传统的大块陶瓷相比有很大的不同或改进。将努力设计有机加工辅助它们对微观结构发展的影响。具体的研究目标是研究“自由”和吸附的聚合物物种对颗粒间力、悬浮稳定性和流变性的作用，以及这些性质对由此产生的陶瓷形式和涂层的微观结构的影响。拟议计划的教育部分将主要集中于两项活动：新课程和编写教材。首席研究员计划在1995年春季开设一门新的研究生课程，题为“溶胶-凝胶和纳米颗粒陶瓷加工科学”。这些课程笔记和那些为高级课程“陶瓷加工和微观结构发展”开发的课程笔记（首席研究员目前教授的课程）将作为编写急需的教科书《高级陶瓷胶体加工》的基础。具体的研究目标是研究“自由”和吸附的聚合物物种对颗粒间力、悬浮稳定性和流变性的作用，以及这些特性对由此产生的陶瓷形式和涂层的微观结构的影响。首席研究员还计划开发一门新的研究生水平课程，并可能在不久的将来编写一本该领域的教科书。* * *

9457957 Lewis Principal Investigator would pursue new areas of research and instrumentation which are emerging in materials science and engineering. In particular, the proposed research and educational plan would focus on developing a fundamental understanding of cross-disciplinary interactions in polymer-stabilized nanosized ceramic systems. Novel materials with unusual properties are expected at the size and scale of nanosized particles, which are greatly different or improved over conventional bulk ceramics. Efforts will be directed to design organic processing aids their effects on microstructural development. The specific research objectives are to study the role of "free" and adsorbed polymeric species on interparticle forces, suspension stability and rheology, and the influence of such properties on the resulting microstructures of ceramic forms and coatings derived from these systems. The educational component of the proposed plan would focus mainly on two activities: new course and text development. The Principal Investigator plan to develop a new graduate level course entitled "Sol-Gel and Nanosized Particulate Ceramic Processing Science" to be taught in the Spring, 1995. These course notes and those developed for a senior level course "Ceramics Processing and Microstructural Development" which the Principal Investigator currently teach will serve as a basis for preparing a much needed text book -- Colloidal Processing of Advanced Ceramics. %%% The specific research objectives are to study the role of 'free' and adsorbed polymeric species on interparticle forces, suspension stability and rheology and the influence of such properties on the resulting microstructure of ceramic forms and coating derived from these systems. The Principal Investigator also plan to develop a new graduate level course and may prepare a text book in the field in the near future. ***