SBIR Phase I: Microwave Processing of Carbon-Carbon Composites

SBIR 第一阶段：碳-碳复合材料的微波处理

• 批准号: 0638291
• 负责人: Lori Bracamonte
• 金额: --
• 依托单位: MATERIALS FOCUS 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=0638291&HistoricalAwards=false
• 关键词: SBIR; Phase; Microwave; Processing; Carbon

The Small Business Innovation Research (SBIR) Phase I project will use microwave processing to produce higher performance carbon/carbon (C/C) composites. High performance C/C composites are typically very expensive as chemical vapor infiltration techniques are used that require extensive processing times. In this project, microwave processing will be used to produce temperature gradients where the core will be preferentially heated to promote densification from the interior to the surface. Microwave processing will also enable the growth of carbon nanotubes without introducing components that lead to strength degradation; and the in-situ growth of carbon nanotubes within the C/C composites will be investigated to produce more uniform, higher strength C/C composites. The development of lower cost carbon/carbon composites would be enabling to a multitude of industries requiring high performance friction components. As the cost of carbon fibers is escalating, lower cost processing techniques are required to make materials more cost effective. Society will benefit as energy consumption is reduced using microwaves since most of the input energy is coupled directly into the sample. The scientific value will arise from an understanding of the interaction and applicability of microwaves with different materials.

小型企业创新研究(SBIR)第一阶段项目将使用微波处理来生产更高性能的碳/碳(C/C)复合材料。高性能的C/C复合材料通常非常昂贵，因为使用的化学气相渗透技术需要很长的加工时间。在这个项目中，将使用微波处理来产生温度梯度，其中堆芯将优先被加热，以促进从内部到表面的致密化。微波处理还可以在不引入导致强度退化的组分的情况下生长碳纳米管；并且将研究碳纳米管在C/C复合材料中的原位生长，以制备更均匀、更高强度的C/C复合材料。低成本碳/碳复合材料的开发将使许多需要高性能摩擦元件的行业能够使用。随着碳纤维成本的上升，需要更低成本的加工技术来使材料更具成本效益。使用微波减少能源消耗将使社会受益，因为大部分输入能量直接耦合到样品中。科学价值将产生于对微波与不同材料的相互作用和适用性的理解。