SBIR Phase I: Rapid Oven-less Fabrication of SiC/SiC Composites

该小型企业创新研究（SBIR）第一阶段项目将解决陶瓷基复合材料的高成本、尺寸和形状能力问题。 碳化硅（SiC）纤维增强的碳化硅复合材料需要熔炉、反应器或烘箱来生产SiC/SiC复合材料基体。 这些反应器、熔炉和烘箱是巨大的资本支出，限制了产品的尺寸和形状，并显著增加了复合材料的成本。 第一阶段将使用无烘箱工艺制造具有反应结合碳化硅基体的SiC/SiC复合材料，以消除对SiC/SiC复合材料的成本、尺寸和形状限制。 第一阶段将确定生产SiC/SiC复合材料所需的热处理参数，以与碳化硅生产的复合材料相媲美。 通过密度、显微镜和强度来评估该工艺。这是一种不依赖于控制复合材料部件尺寸、形状和成本的熔炉比例来生产SiC/SiC复合材料的技术。 大型和复杂的形状有望在无烘箱工艺中快速生产，用于先进的涡轮机发动机、辐射管加热器、热交换器以及化学、石油、造纸和纸浆工业的众多侵蚀、腐蚀和热应用。

This Small Business Innovation Research (SBIR) Phase I project will address the high cost and size and shape capability of ceramic matrix composites. Silicon carbide (SiC) fiber reinforced silicon carbide composites require furnaces, reactors, or ovens to produce the SiC/SiC composite matrix. These reactors, furnaces, and ovens are large capital expenditures limiting product size and shape and significantly increasing the cost of composites. Phase I will use an oven-less process to make SiC/SiC composites with a reaction-bonded silicon carbide matrix to remove cost, size, and shape constraints on SiC/SiC composites. Phase I will determine the thermal processing parameters required to produce SiC/SiC composites comparable to furnace-produced composites. Density, microscopy, and strength will be used to evaluate the process.This is a technology for producing SiC/SiC composites that are not dependent on furnace proportions that control the size, shape and cost of the composite parts. Large and complex shapes are expected to be produced rapidly in an oven-less process for advanced turbine engines, radiant tube heaters, heat exchangers and the numerous erosion, corrosion and thermal applications of the chemical, petroleum, and paper and pulp industries.