SBIR Phase I: Low Cost Silicon Carbide Self-Lubricating Ceramics

* 9760840 Leaskey 这个小企业创新研究（SBIR）第一阶段项目将探索自润滑陶瓷。 碳化硅（SiC）陶瓷复合材料，含有两种不同的润滑相，将评估当前以及潜在的新应用。 将研究一种创新的加工技术：（1）低成本加工;（2）无需压力辅助烧结即可获得高密度;（3）将零件制造成精确尺寸的近净形;以及（4）根据具体应用调整组合物的灵活性。 两种不同的SiC基系统具有潜在的自润滑性能将进行研究。 复合材料的表征将包括微观结构的评价和强度及摩擦学性能的测量。 摩擦和磨损筛选将由主要设备制造商进行。 第二阶段将在单缸研究发动机上对原型柴油发动机部件进行全面测试。 潜在的应用包括高温磨损部件，如机床部件、轴承、化学加工设备（包括机械密封）以及气门导管和阀座。 ***

*** 9760840 Leaskey This Small Business Innovation Research (SBIR) Phase I project will explore self-lubricating ceramics. Silicon carbide (SiC) ceramic composites, containing two different lubricating phases, will be evaluated for current as well as potential new applications. An innovative processing technique will be examined for: (1) low cost processing; (2) attaining high densities without pressure-assisted sintering; (3) near-net-shape fabrication of parts to accurate dimensions; and (4) flexibility to tailor composition to specific applications. Two different SiC-based systems with potentially self-lubricating properties will be investigated. Characterization of composites will include evaluation of microstructure and measurement of strength and tribological properties. Friction and wear screening will be performed by a major equipment manufacturer. Phase II would pursue comprehensive testing of prototype diesel engine components in a single cylinder research engine. Potential applications include high-temperature wear parts, such as machine tool components, bearings, chemical processing equipment including mechanical seals, and valve guides and seats. ***