Vitek VTC-3516 Spécifications télécharger pdf (Page 59)

Design and Applied Technology (Secondary 4-6)

Nanotechnology applications

Scientists and engineers make use the special properties of new materials to many applications

in recent years. For example, some materials can change their shape or sizes when heated, or

change from liquid to solid when placed near a magnet. Such materials are called smart

materials.

The changeability of smart materials’ properties allows great development in the field of

material science.

The family members of smart materials include piezoelectric materials, magneto-rheostatic

materials, electro-rheostatic materials and shape memory alloys. Some of them have already

been, and many others are going to be, incorporated in daily life, such as coffee pots, cars and

eyeglasses.

Piezoelectric materials have two unique but interrelated properties. Firstly, a piezoelectric

material will release a tiny but still measurable electrical discharge when deformed. Secondly,

a piezoelectric material’s volume will enlarge up to 4% when an electrical current passes

through it.

Energy

Medicine & Drugs

Nano Devices

Optical engineering

Defence

Bio-engineering

Cosmetics

Nano Fabrics

Nanotechnology

Application

1 2 ... 54 55 56 57 58 59 60 61 62 63 64 ... 124 125

Pas de commentaire

Vitek VTC-3516 Spécifications Page 59