Final answer:
Ceramics are a good choice for making jet engine blades that get very hot because they do not conduct electricity. They offer a combination of heat resistance, strength, and electrical insulation that makes them suitable for use in this application.
Step-by-step explanation:
Ceramics are a good choice for making jet engine blades that get very hot because they do not conduct electricity. This is important because it prevents electrical currents from flowing through the blades, which could cause damage or accidents. Ceramics also have excellent thermal insulation properties, meaning they can withstand high temperatures without deforming or melting.
For example, a popular ceramic material used in jet engine blades is silicon nitride. It has high strength, corrosion resistance, and thermal shock resistance, making it ideal for this application. The fact that it does not conduct electricity adds an additional safety feature.
Overall, ceramics offer a combination of heat resistance, strength, and electrical insulation that makes them suitable for use in jet engine blades.