NSF/Sandia: Thermo-Mechanically Enhanced Interfaces

这个NSF/Sandia项目解决了使用碳纳米管（CNT）增强材料开发用于工程应用的多功能纳米复合材料的基础材料和建模问题。提出了一种多尺度建模方法来预测(CNT)-环氧复合材料的热学、电学和力学性能。该项目还解决了使用不同共价键功能化分散碳纳米管的复合材料的制造和测试，这些共价键功能化与陶瓷和聚合物复合材料基板有亲和关系，以建立必要的工具和知识，以开发和验证多功能纳米复合材料的多尺度模型。这项工作的智力价值在于为微电子设备生产新的粘附层，并在创新设计范例的进步中，在纳米和微尺度上优化了材料的放置。研究的重点是碳纳米管纳米复合材料，然而，所得的方法将普遍适用于各种纳米包裹体，如纳米纤维、纳米球和纳米粘土。该研究项目的广泛影响围绕半导体行业的技术，涉及微电路，MEMS和NEMS的发展，这些技术在压力传感器，惯性传感器，化学微传感器，光学传感器，功率MEMS和数据存储设备等方面具有前瞻性的应用。研究成果也将用于培养学生和本科高级设计和技术选修课程。

This NSF/Sandia project addresses fundamental materials and modeling issues for developing multifunctional nanocomposites using carbon nanotube (CNT) reinforcement for engineering applications. A multiscale modeling approach is proposed to predict thermal, electrical and mechanical properties of (CNT)-epoxy composites. The project also addresses the fabrication and testing of composites with CNTs dispersed using different covalent bond functionalizations with affinities to ceramic and polymeric composite substrates to establish the necessary tools and knowledge to develop and validate multiscale models of multifunctional nanocomposites. The intellectual merit of this effort resides in the production of novel adhesion layers for microelectronic devices and in the advancement of an innovative design paradigm where placement of materials is optimized per application at the nano and micro scales. The investigation is focused on CNT nanocomposites, however, resulting methodologies will be generally applicable to a variety of nanoinclusions such as nanofibers, nanospheres, and nanoclays.The broader impacts of this research project revolve around the technology of the semiconductor industry concerning the development of micro-circuitry, MEMS and NEMS which find prospective applications as pressure sensors, inertial sensors, chemical microsensors, optical sensors, power MEMS, and data storage devices. Research findings will also be used in training students and in undergraduate senior design and technical elective courses.