L01 Basics

What is the main focus of aerospace materials in this lecture?

Structural materials such as airframes, propulsion, and control systems.

Which factors influenced material selection in early aerospace development?

Performance and cost.

What new factor influences material selection today?

Environmental aspects and climate sensitivity.

What is meant by the term "process" in an abstract sense?

Organized activities, often used in an organizational context.

What is the difference between physical and chemical changes in materials?

Physical properties may change in size or shape without changing the chemical composition.

Why are mechanical properties especially important in aerospace?

Because they are crucial for engineering and design purposes.

What are the components of the composite material used in friction layers?

Carbon fibers (reinforcement), silicon carbide, and metallic silicon (matrix).

Why is detailed material knowledge essential during processing?

Because heat and force during processing can change the material properties, and optimal parameters vary depending on the material.