Smart Materials

Question 1

Thermochromic liquid

• example
• description

Answer 1

• baby colour change spoon
• this material uses conductive ink. By applying hear a change occurs between opaque when cool and translucent when heated.

Question 2

Piezoelectric crystals

• example
• description

Answer 2

• a musical greeting card

- this material converts electric energy to mechanical energy and vice versa

Question 3

Smart ink

• example
• description

Answer 3

• digital book

- this material uses micro positive and negative charges to create a dark or light image

Question 4

Nitinol wire

• example
• description

Answer 4

• dentistry brace

- a material that has memory and changes structure when heat is applied.

Question 5

RFID (radio frequency identification)

• example
• description

Answer 5

• shopping tag

- this material works by transmission and reception of radio signals. It can be used for security and tracking purposes