Yes, ceramic fiber products can be used in both automobiles and airplanes. They are valued for their high-temperature resistance, thermal insulation, and lightweight properties. In aircraft, they are used in engine components and heat shields due to their ability to withstand extreme temperatures. In automobiles, they are employed in brake pads, exhaust systems, and heat insulation for engines. Their use contributes to improved safety, reduced weight, and enhanced fuel efficiency in both types of vehicles.