Smart Materials Flashcards

1
Q

Advantages of Electroluminescent Material

A
  • can be found in the form of flexible films or thin panels
  • flexible
  • don’t generate heat
  • increased reliability and durability
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2
Q

Electroluminescent Material

A

Provides a visible light when exposed to an electrical current
- made of a thin copper wire coated in phosphor powder

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3
Q

Uses of Electroluminescent Material

A
  • mobile phones
  • car dashboard displays
  • watches
  • signage
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4
Q

Quantum Tunneling Composite

A

Flexible polymer which contains tiny (conductive) nickel particles
- when a force is applied, the particles come into contact with each other
- this allows it to become conductive

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5
Q

Advantages of Quantum Tunneling Composite

A
  • variable input can be applied
  • compact
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6
Q

Uses of Quantum Tunneling Composite

A
  • mobile phones
  • electric drills
  • pressure sensors
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7
Q

Shape Memory Alloys

A

Alloys that return to their original form when heated
- Nitinol

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8
Q

Advantages of Shape Memory Alloys

A
  • can be shaped and deformed
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9
Q

Uses of Shape Memory Alloys

A
  • medical fastenings
  • dental implants (braces)
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10
Q

Polymorph

A

Material that becomes soft and plaiable at low temperatures

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11
Q

Advantages of Polymorph

A
  • normally supplied as granules
  • can be reshaped
  • more readily recycled
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12
Q

Uses of Polymorph

A
  • ergonomic handles
  • features on products
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13
Q

Photochromic Pigment

A

Material that changes colour dependent on light intensity

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14
Q

Uses of Photochromic Pigment

A
  • sunglasses which become lighter/darker in response to UV radiation
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15
Q

Thermochromic Pigment

A

Material that changes in response to a change in heat

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16
Q

Advantages of Thermochromic Pigment

A
  • can be manufactured to change at a specific temperature
17
Q

Uses of Thermochromic Pigment

A
  • temperature indicator for infants
18
Q

Micro-Encapsulation

A

Process of applying microscopic capsules to fibres/fabrics

19
Q

Uses of Micro-Encapsulation

A
  • medical dressings embedded with antiseptics
  • sportswear with chemicals to prevent odour
20
Q

Biomimicry

A

Taking ideas and mimicking features from nature
- Fastskin developed by Speedo