STTR Phase I: Hybrid Carbon Reinforced Ceramic Nanocomposites

STTR 第一阶段：混合碳增强陶瓷纳米复合材料

• 批准号: 0638246
• 负责人: Christopher Gump
• 金额: $ 14.99万
• 依托单位: ALD NANOSOLUTIONS, INC.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0638246&HistoricalAwards=false
• 关键词: STTR; Phase; Hybrid; Carbon; Reinforced

This Small Business Technology Transfer (STTR) Phase I project will investigate coating carbon nanotubes (CNTs) using ALD NanoSolutions' patented atomic layer deposition on particles (Particle ALD) for use as improved filler materials for ceramic composites. The CNTs will be dispersed into a powdered ceramic, and the mixture will be coated with a nano-thick alumina film using ALD in a fluidized bed. The coating will ensure compatibility between the surfaces of the ceramic and the CNTs, allowing for even distribution of the CNTs throughout the matrix with less agglomeration and aggregation. The sintered composite will therefore be able to take better advantage of the high strength and stiffness of the CNTs, resulting in improved physical properties. Processing variables will be investigated on the small scale, and the most promising batch will be scaled up to ~1 kg of composite powder. Sintering of this material will be studied, and the physical properties of the resulting composite billets will be measured. The Phase II objectives will include more in-depth studies of the effect of the coated CNTs and their weight loading on the strength, adhesion, friction and wear properties of the composites. Successful completion of this Phase I will allow the strategies learned to be applied to other CNT applications that face similar material handling problems.

这个小企业技术转让（STTR）第一阶段项目将研究使用ALD NanoSolutions的专利原子层沉积颗粒（颗粒ALD）涂覆碳纳米管（CNT），用作陶瓷复合材料的改进填料材料。 碳纳米管将分散到粉末陶瓷中，混合物将在流化床中使用ALD涂覆纳米厚的氧化铝膜。 涂层将确保陶瓷和CNT的表面之间的相容性，允许CNT在整个基质中均匀分布，具有较少的团聚和聚集。 因此，烧结的复合材料将能够更好地利用CNT的高强度和刚度，从而改善物理性能。 将在小规模上研究加工变量，最有希望的批次将扩大到约1公斤复合粉末。 将研究这种材料的烧结，并测量所得复合坯料的物理性能。 第二阶段的目标将包括更深入地研究涂层碳纳米管及其重量负荷对复合材料的强度、附着力、摩擦和磨损性能的影响。 第一阶段的成功完成将使学到的策略适用于面临类似材料处理问题的其他CNT应用。