Can ceramic fibers be used in aerospace applications such as airplanes or spacecraft?

Yes, ceramic fibers are indeed used in aerospace applications. They are valued for their high strength-to-weight ratio, resistance to high temperatures, and excellent thermal insulation properties. These fibers are incorporated into components such as heat shields, rocket nozzles, and aircraft engine parts where they can withstand extreme conditions. Their use in aerospace helps to reduce weight, improve fuel efficiency, and enhance the safety and performance of spacecraft and airplanes.