NASA正在寻求改变未来商用飞机的机遇,更有效的发动机是核心。为了实现未来飞机用上更好的发动机的目标,NASA的研究人员正在研究有前景的涡轮发动机部件高温材料。这些金属,被称为陶瓷基复合材料或CMC,更轻、更强,且能够给承受喷气发动机核心部件的极端高温环境下的受力要求。陶瓷基复合材料将替代目前在航空发动机中应用的镍基高温合金。总的来说,发动机工作温度越高,燃油效率更高。近年来,由于金属部件采用了热障涂层,发动机工作温 NASA is seeking to change the opportunities for future commercial aircraft, with more efficient engines at the heart. To achieve the goal of a better engine for future aircraft, NASA researchers are studying promising turbine engine components for high-temperature materials. These metals, known as ceramic matrix composites or CMC, are lighter, stronger and able to withstand the stress conditions of extreme high temperature environments that withstand jet engine core components. Ceramic matrix composites will replace nickel-based superalloys currently used in aero-engines. In general, the higher the engine operating temperature, the more fuel efficient. In recent years, due to the thermal barrier coating metal parts, the engine temperature