Modern and Smart Materials

• What are modern materials engineered for?

  Properties not found in natural materials
• Name two examples of modern materials.

  Graphene and Kevlar
• In which industries are modern materials commonly used?

  High-tech industries like aerospace
• What defines smart materials?

  React to environmental changes
• Give an example of a smart material.

  Shape memory alloys
• What is a common application of smart materials?

  Medical devices and responsive products
• What is Kevlar known for?

  High tensile strength
• In what products is Kevlar commonly used?

  Bulletproof vests and tires
• How thick is graphene?

  One atom thick
• What are the properties of graphene?

  Extremely strong, lightweight, conductive
• What is Gore-Tex used for?

  Outdoor clothing
• What are the characteristics of Gore-Tex?

  Waterproof and breathable
• What is carbon fiber known for?

  Lightweight and strong
• Where is carbon fiber commonly used?

  Cars, bicycles, and aerospace
• What do nano-materials enhance?

  Durability, strength, and conductivity
• What do shape memory alloys do when heated?

  Return to their original shape
• What is a practical use of thermochromic pigments?

  Color-changing baby bottles
• What do photochromic pigments do in sunlight?

  Darken in sunlight
• Where are photochromic pigments commonly found?

  Transition lenses
• What are hydrogels used for?

  Wound dressings
• What is a key property of hydrogels?

  Absorb large amounts of water
• What do piezoelectric materials generate?

  Electricity when compressed
• What is a common application of piezoelectric materials?

  Used in sensors and actuators