位于美国北卡罗来纳州阿什维尔的工厂已达到其商用航空陶瓷基复合材料部件的生产里程碑。

　　GE Aviation提供25,000个CMC组件-复合材料网

　　GE航空公司（美国俄亥俄州Evendale）于8月8日宣布其美国北卡罗来纳州阿什维尔工厂交付其第 25,000台CFM国际（美国俄亥俄州辛辛那提）LEAP发动机涡轮机罩。该公司陶瓷基质复合材料（CMCs）的生产里程碑在其阿什维尔工厂开业仅五年后到来。自该网站开通以来，LEAP计划的寿衣生产率每年增加两倍以上。如今，这些阿什维尔生产的护罩在商用航空服务的800多台LEAP发动机上的飞行时数已超过150万小时。

　　CMC的重量约为金属的三分之一，可以在比先进的合金高2,400°F - 500°的温度下运行。据GE航空集团称，下一代CMC材料技术将提高燃油效率1％至2％。

　　今年5月，GE航空阿什维尔开始为上大的商用喷气发动机GE9X提供CMC组件。GE9X的直径为11英尺，可产生超过100,000磅的推力。到2018年底，GE航空阿什维尔将为发动机提供五个独立的CMC部件，计划在本世纪末波音777X上投入使用。

GE Aviation (Evendale, OH, US) announced on Aug. 8 the delivery of its 25,000th CFM International (Cincinnati, OH, US) LEAP engine turbine shroud by its Asheville, NC, US facility. This ceramic matrix composites (CMCs) production milestone for the company arrives just five years after the opening of its Asheville site. Shroud production rates for the LEAP program have more than tripled each year since the site opened. Today, these Asheville-produced shrouds have surpassed more than 1.5 million flight hours on the 800+ LEAP engines in commercial airline service.

CMCs are around one-third as heavy as metals and can operate at 2,400°F — 500° higher than the most advanced alloys. According to GE Aviation, the next generation CMC material technology being will improve fuel efficiency at 1 to 2 percent.

In May, GE Aviation Asheville began delivering CMC components for the GE9X, the world’s largest commercial jet engine. With an 11-foot diameter, the GE9X can generate more than 100,000 pounds of thrust. By the end of 2018, GE Aviation Asheville will deliver five separate CMC parts for the engine, which is scheduled to enter service by the end of the decade on the Boeing 777X.