SBIR Phase I: Dense Shaped SiC by Self-Propagating High-Temperature Synthesis (SHS) Reaction in Electroconsolidation Process

该小型企业创新研究I期项目将开发一种经济有效的商业方法，用于使用电固结工艺在压力下通过自蔓延高温合成（SHS）反应直接生产复杂形状的全致密结构陶瓷部件。许多已经开发的高性能陶瓷材料由于制造部件的高成本而未被使用。如果可以直接由反应物粉末混合物制造致密的成型部件，则使用SHS制造部件提供了相当大的降低成本的机会。电固结是一种新开发的低成本压力辅助致密化工艺，能够满足这一要求。该项目将确定采用电固结法制造致密碳化硅的技术和经济可行性。如果成功的话，商业上的好处是，由高性能材料如碳化物、硅化物和碳氮化物制成的产品可以变得更经济。

This Small Business Innovation Research Phase I Project will develop a cost-effective commercial method for production of fully dense structural ceramic parts of complex shape directly by self-propagating high-temperature synthesis (SHS) reaction under pressure using the Electroconsolidation process. Many already developed high-performance ceramic materials are not used because of the high cost to fabricate components. The use of SHS to make parts offers considerable opportunity to reduce costs if dense, shaped parts can be made directly from reactant powder mix. Electroconsolidation is a newly developed process for low-cost pressure-assisted densification that is uniquely capable to meet this requirement. The project will determine the technical and economic feasibility of employing Electroconsolidation for making dense silicon carbide. The commercial benefit if successful, would be products made from high-performance materials such as carbides, silicides, and carbo-nitrides could become more economical toproduce.